./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX --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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:31,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:31,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:31,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:31,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:31,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:31,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:31,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:31,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:31,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:31,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:31,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:31,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:31,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:31,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:31,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:31,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:31,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:31,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:31,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:31,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:31,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:31,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:31,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:31,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:31,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:31,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:31,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:31,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:31,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:31,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:31,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:31,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:31,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:31,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:31,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:31,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:31,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:31,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:31,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:31,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:31,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-09 09:09:31,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:31,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:31,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:31,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:31,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:31,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:31,507 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:31,507 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:09:31,507 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:09:31,508 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:09:31,508 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:09:31,508 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:09:31,508 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:09:31,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:31,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:09:31,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:09:31,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:31,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:09:31,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:09:31,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:09:31,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:09:31,511 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:09:31,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:31,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:09:31,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:31,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:31,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:31,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:09:31,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:31,515 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:09:31,515 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_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2021-11-09 09:09:31,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:31,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:31,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:31,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:31,853 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:31,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-11-09 09:09:31,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/data/e1630717f/79123e8ecc8246b69e9f05ba3aaf73bf/FLAG078e39c7c [2021-11-09 09:09:32,427 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:32,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-11-09 09:09:32,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/data/e1630717f/79123e8ecc8246b69e9f05ba3aaf73bf/FLAG078e39c7c [2021-11-09 09:09:32,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/data/e1630717f/79123e8ecc8246b69e9f05ba3aaf73bf [2021-11-09 09:09:32,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:32,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:09:32,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:32,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:32,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:32,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:32" (1/1) ... [2021-11-09 09:09:32,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157da0e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:32, skipping insertion in model container [2021-11-09 09:09:32,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:32" (1/1) ... [2021-11-09 09:09:32,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:32,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:33,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:33,031 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:09:33,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:33,067 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:09:33,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33 WrapperNode [2021-11-09 09:09:33,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:33,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:33,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:09:33,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:09:33,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:33,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:09:33,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:09:33,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:09:33,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:09:33,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:09:33,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:09:33,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:09:33,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (1/1) ... [2021-11-09 09:09:33,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:33,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:33,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:33,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:09:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:09:33,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:09:33,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:09:33,411 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-09 09:09:33,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:33 BoogieIcfgContainer [2021-11-09 09:09:33,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:09:33,414 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:09:33,414 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:09:33,419 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:09:33,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:09:33,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:09:32" (1/3) ... [2021-11-09 09:09:33,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@148c7a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:09:33, skipping insertion in model container [2021-11-09 09:09:33,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:09:33,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:33" (2/3) ... [2021-11-09 09:09:33,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@148c7a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:09:33, skipping insertion in model container [2021-11-09 09:09:33,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:09:33,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:33" (3/3) ... [2021-11-09 09:09:33,425 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-11-09 09:09:33,496 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:09:33,496 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:09:33,496 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:09:33,497 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:09:33,497 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:09:33,497 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:09:33,497 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:09:33,497 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:09:33,515 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) [2021-11-09 09:09:33,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:33,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:09:33,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:09:33,551 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:09:33,551 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:09:33,552 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:09:33,552 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) [2021-11-09 09:09:33,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:33,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:09:33,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:09:33,555 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:09:33,555 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:09:33,563 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 3#L19-2true [2021-11-09 09:09:33,564 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 9#L19true assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 3#L19-2true [2021-11-09 09:09:33,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:33,575 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-11-09 09:09:33,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:33,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018829547] [2021-11-09 09:09:33,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:33,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,690 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:33,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-11-09 09:09:33,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:33,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980761762] [2021-11-09 09:09:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:33,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,763 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-11-09 09:09:33,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:33,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268430119] [2021-11-09 09:09:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:33,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,801 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:33,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:33,962 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:33,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:33,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:33,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:33,963 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:09:33,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:33,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:33,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:33,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-11-09 09:09:33,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:33,964 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:34,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,125 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:34,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:09:34,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:34,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:34,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 09:09:34,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:09:34,179 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: [] [2021-11-09 09:09:34,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:34,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:34,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 09:09:34,284 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:09:34,285 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: [] [2021-11-09 09:09:34,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:34,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:34,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 09:09:34,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,410 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:09:34,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:34,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 09:09:34,642 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:09:34,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,650 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:34,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:34,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:34,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:34,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:09:34,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:34,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:34,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-11-09 09:09:34,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:34,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:34,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:34,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:34,750 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:09:34,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,784 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 [2021-11-09 09:09:34,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:34,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:34,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:34,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:34,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:09:34,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:09:34,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 09:09:34,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:09:34,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,894 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,901 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 [2021-11-09 09:09:34,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 09:09:34,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:34,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:34,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:34,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:34,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:09:34,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:09:34,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:09:34,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:34,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:34,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:34,982 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:34,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 09:09:34,991 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 [2021-11-09 09:09:35,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:35,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:09:35,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:35,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:35,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:35,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:09:35,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:09:35,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:09:35,018 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-09 09:09:35,018 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:09:35,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:35,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:35,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:09:35,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:09:35,033 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:09:35,034 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:09:35,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 09:09:35,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:35,083 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:09:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:35,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:35,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:35,153 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 09:09:35,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:35,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:35,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-09 09:09:35,293 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 28 states and 35 transitions. Complement of second has 8 states. [2021-11-09 09:09:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-09 09:09:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-11-09 09:09:35,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-09 09:09:35,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:35,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-09 09:09:35,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:35,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-09 09:09:35,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:35,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-11-09 09:09:35,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:35,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-11-09 09:09:35,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-09 09:09:35,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 09:09:35,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-09 09:09:35,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:09:35,312 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-09 09:09:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-09 09:09:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-09 09:09:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) 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) [2021-11-09 09:09:35,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-09 09:09:35,339 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-09 09:09:35,340 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-09 09:09:35,340 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:09:35,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-09 09:09:35,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:35,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:09:35,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:09:35,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-09 09:09:35,342 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:09:35,342 INFO L791 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 81#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 82#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 80#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 76#L19-2 [2021-11-09 09:09:35,342 INFO L793 eck$LassoCheckResult]: Loop: 76#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 77#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 76#L19-2 [2021-11-09 09:09:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-11-09 09:09:35,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:35,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666730495] [2021-11-09 09:09:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:35,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:35,351 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:35,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-11-09 09:09:35,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:35,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479965395] [2021-11-09 09:09:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:35,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:35,365 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:35,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2021-11-09 09:09:35,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:35,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109927079] [2021-11-09 09:09:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:35,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:35,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:35,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109927079] [2021-11-09 09:09:35,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109927079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:35,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:35,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:09:35,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681161046] [2021-11-09 09:09:35,493 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:35,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:35,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:35,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:35,493 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:09:35,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:35,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:35,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-11-09 09:09:35,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:35,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:35,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,558 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:35,558 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:09:35,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:35,567 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:35,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:35,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 09:09:35,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:09:35,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:09:35,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:35,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:35,642 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:35,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:35,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:35,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 09:09:35,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:35,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:35,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:35,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:09:35,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:35,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 09:09:35,918 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:09:35,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:35,926 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:35,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:35,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:35,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:35,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:09:35,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:35,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:35,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-11-09 09:09:35,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:35,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:35,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:35,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:35,989 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:09:35,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:35,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:35,991 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,003 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 [2021-11-09 09:09:36,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:36,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:36,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:36,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:36,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:09:36,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:09:36,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 09:09:36,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:09:36,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:36,069 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,076 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 [2021-11-09 09:09:36,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:36,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:09:36,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:36,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:36,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:36,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:09:36,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:09:36,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 09:09:36,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:09:36,117 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-09 09:09:36,117 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:09:36,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:36,120 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:09:36,126 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:09:36,126 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:09:36,126 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:09:36,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 09:09:36,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,168 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:09:36,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:36,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:36,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:36,207 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 09:09:36,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:36,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:36,274 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:36,275 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-09 09:09:36,296 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 12 states and 17 transitions. Complement of second has 5 states. [2021-11-09 09:09:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-09 09:09:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-11-09 09:09:36,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-09 09:09:36,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:36,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-09 09:09:36,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:36,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-11-09 09:09:36,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:36,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-11-09 09:09:36,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:36,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-11-09 09:09:36,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-09 09:09:36,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-09 09:09:36,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-11-09 09:09:36,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:09:36,310 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-09 09:09:36,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-11-09 09:09:36,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-09 09:09:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-09 09:09:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-11-09 09:09:36,319 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-11-09 09:09:36,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:09:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:09:36,326 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-11-09 09:09:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:36,350 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-09 09:09:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:36,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-09 09:09:36,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:36,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2021-11-09 09:09:36,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-09 09:09:36,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-09 09:09:36,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-11-09 09:09:36,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:09:36,356 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-09 09:09:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-11-09 09:09:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2021-11-09 09:09:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-11-09 09:09:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-09 09:09:36,360 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-09 09:09:36,361 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-09 09:09:36,361 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:09:36,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-11-09 09:09:36,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:36,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:09:36,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:09:36,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 09:09:36,365 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:09:36,365 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 165#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 166#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 162#L19 [2021-11-09 09:09:36,365 INFO L793 eck$LassoCheckResult]: Loop: 162#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 161#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 162#L19 [2021-11-09 09:09:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-11-09 09:09:36,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:36,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108317903] [2021-11-09 09:09:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:36,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,394 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2021-11-09 09:09:36,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:36,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020513452] [2021-11-09 09:09:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:36,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,415 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,421 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 2 times [2021-11-09 09:09:36,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:36,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508187326] [2021-11-09 09:09:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:36,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,494 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:36,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:36,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,558 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:36,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:36,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:36,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:36,559 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:09:36,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:36,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:36,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-11-09 09:09:36,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:36,560 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:36,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:36,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:36,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:36,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,621 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:36,621 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:09:36,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:36,623 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:36,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:36,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 09:09:36,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:09:36,653 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:09:36,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:36,691 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:36,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:36,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 09:09:36,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:36,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:36,751 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:36,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:09:36,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:36,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-09 09:09:37,033 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:09:37,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:37,035 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:37,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:37,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:37,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:37,036 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:09:37,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:37,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:37,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-11-09 09:09:37,036 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:37,036 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:37,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:37,090 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:09:37,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,091 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,111 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 [2021-11-09 09:09:37,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:37,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:09:37,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:37,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:37,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:37,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:09:37,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:09:37,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-09 09:09:37,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:09:37,143 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:09:37,143 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:09:37,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,146 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-09 09:09:37,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:09:37,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:09:37,158 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:09:37,158 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:09:37,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:37,196 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:09:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:37,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:37,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:37,235 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:09:37,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:37,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:37,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-09 09:09:37,300 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12 states and 14 transitions. Complement of second has 5 states. [2021-11-09 09:09:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-09 09:09:37,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-09 09:09:37,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-09 09:09:37,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:37,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-09 09:09:37,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:37,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-09 09:09:37,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:37,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-11-09 09:09:37,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:37,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2021-11-09 09:09:37,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-09 09:09:37,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-09 09:09:37,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-11-09 09:09:37,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:09:37,308 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-09 09:09:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-11-09 09:09:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-09 09:09:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) 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) [2021-11-09 09:09:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-11-09 09:09:37,311 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-11-09 09:09:37,311 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-11-09 09:09:37,311 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-09 09:09:37,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-11-09 09:09:37,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:09:37,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:09:37,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:09:37,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-11-09 09:09:37,313 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:09:37,313 INFO L791 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 220#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 216#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 217#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 218#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 219#L19 [2021-11-09 09:09:37,314 INFO L793 eck$LassoCheckResult]: Loop: 219#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 222#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 219#L19 [2021-11-09 09:09:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash 29684838, now seen corresponding path program 2 times [2021-11-09 09:09:37,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:37,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107831351] [2021-11-09 09:09:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:37,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:37,335 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:37,350 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:37,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 2 times [2021-11-09 09:09:37,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:37,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685512972] [2021-11-09 09:09:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:37,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:37,366 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:09:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:09:37,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:09:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 2 times [2021-11-09 09:09:37,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:37,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771286993] [2021-11-09 09:09:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:37,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:37,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:37,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771286993] [2021-11-09 09:09:37,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771286993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:37,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:37,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:09:37,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469832795] [2021-11-09 09:09:37,448 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:37,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:37,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:37,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:37,449 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:09:37,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:37,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:37,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-11-09 09:09:37,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:37,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:37,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,493 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:37,493 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:09:37,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,494 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:09:37,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:37,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-09 09:09:37,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:37,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,570 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:09:37,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:09:37,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-09 09:09:37,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:09:37,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:37,874 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:09:37,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:09:37,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:09:37,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:09:37,874 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:09:37,874 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,874 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:09:37,874 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:09:37,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-11-09 09:09:37,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:09:37,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:09:37,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:09:37,957 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:09:37,957 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:09:37,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,959 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-09 09:09:37,961 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 [2021-11-09 09:09:37,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:09:37,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:09:37,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:09:37,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:09:37,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:09:37,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:09:37,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:09:37,978 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:09:37,984 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-09 09:09:37,984 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:09:37,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:09:37,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:37,985 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:37,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-09 09:09:37,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:09:37,986 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:09:37,986 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:09:37,987 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:09:38,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:38,007 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:09:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,081 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:38,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:38,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,136 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 states and 9 transitions. Complement of second has 3 states. [2021-11-09 09:09:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-11-09 09:09:38,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-09 09:09:38,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:38,137 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:09:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,180 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:38,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:38,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 states and 9 transitions. Complement of second has 3 states. [2021-11-09 09:09:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-11-09 09:09:38,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-09 09:09:38,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:38,224 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:09:38,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:38,259 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:09:38,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:38,295 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:09:38,295 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,306 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 states and 10 transitions. Complement of second has 4 states. [2021-11-09 09:09:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-09 09:09:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-09 09:09:38,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-09 09:09:38,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:38,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-09 09:09:38,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:38,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-09 09:09:38,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:09:38,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-11-09 09:09:38,310 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:09:38,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2021-11-09 09:09:38,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:09:38,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:09:38,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:09:38,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:09:38,311 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:38,311 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:38,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:09:38,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:09:38,312 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-09 09:09:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:38,312 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-09 09:09:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:09:38,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:09:38,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:09:38,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:09:38,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:09:38,313 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:38,313 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-09 09:09:38,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:09:38,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:09:38,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 09:09:38,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:09:38 BoogieIcfgContainer [2021-11-09 09:09:38,321 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:09:38,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:09:38,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:09:38,322 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:09:38,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:33" (3/4) ... [2021-11-09 09:09:38,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:09:38,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:09:38,328 INFO L168 Benchmark]: Toolchain (without parser) took 5528.99 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 39.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:38,329 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:38,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.12 ms. Allocated memory is still 92.3 MB. Free memory was 54.4 MB in the beginning and 70.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:38,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.35 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:38,336 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 827.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:38,336 INFO L168 Benchmark]: RCFGBuilder took 282.66 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 60.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:38,337 INFO L168 Benchmark]: BuchiAutomizer took 4907.22 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.6 MB in the beginning and 39.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:38,337 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 111.1 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:38,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.12 ms. Allocated memory is still 92.3 MB. Free memory was 54.4 MB in the beginning and 70.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.35 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.3 MB in the end (delta: 827.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 282.66 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 60.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4907.22 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.6 MB in the beginning and 39.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.55 ms. Allocated memory is still 111.1 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 27 SDslu, 6 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 95ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 09:09:38,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:38,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-11-09 09:09:38,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549f8e3a-0ce1-427a-9421-017fb07cc301/bin/uautomizer-IVEQpCNsaX/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