./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC --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 a3a1315287b984b6ff3d1521ef67a642a499a933 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:25:56,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:56,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:56,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:56,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:56,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:56,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:56,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:56,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:56,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:56,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:56,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:56,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:56,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:56,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:56,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:56,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:56,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:56,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:56,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:56,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:56,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:56,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:56,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:56,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:56,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:56,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:56,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:56,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:56,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:56,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:56,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:56,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:56,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:56,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:56,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:56,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:56,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:56,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:56,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:56,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:56,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:25:56,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:56,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:56,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:56,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:56,637 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:56,638 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:25:56,638 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:25:56,638 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:25:56,639 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:25:56,639 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:25:56,640 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:25:56,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:56,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:25:56,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:56,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:56,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:25:56,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:25:56,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:25:56,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:56,642 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:25:56,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:56,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:25:56,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:56,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:56,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:56,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:56,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:56,645 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:25:56,646 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_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3a1315287b984b6ff3d1521ef67a642a499a933 [2021-10-11 00:25:56,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:57,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:57,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:57,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:57,018 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:57,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-restricted-15/b.07.c [2021-10-11 00:25:57,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/data/59bf6e4a3/8ac3751998804883bcc580c6f6da21b0/FLAGdb6ddd220 [2021-10-11 00:25:57,717 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:57,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/sv-benchmarks/c/termination-restricted-15/b.07.c [2021-10-11 00:25:57,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/data/59bf6e4a3/8ac3751998804883bcc580c6f6da21b0/FLAGdb6ddd220 [2021-10-11 00:25:58,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/data/59bf6e4a3/8ac3751998804883bcc580c6f6da21b0 [2021-10-11 00:25:58,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:58,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:58,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:58,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:58,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:58,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de5d3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58, skipping insertion in model container [2021-10-11 00:25:58,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:58,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:58,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:58,336 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:58,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:58,371 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:58,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58 WrapperNode [2021-10-11 00:25:58,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:58,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:58,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:58,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:58,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:58,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:58,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:58,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:58,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:58,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:58,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:58,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:58,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:58,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:58,727 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:25:58,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:58 BoogieIcfgContainer [2021-10-11 00:25:58,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:58,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:25:58,732 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:25:58,737 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:25:58,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:58,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:25:58" (1/3) ... [2021-10-11 00:25:58,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55404b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:25:58, skipping insertion in model container [2021-10-11 00:25:58,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:58,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (2/3) ... [2021-10-11 00:25:58,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55404b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:25:58, skipping insertion in model container [2021-10-11 00:25:58,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:58,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:58" (3/3) ... [2021-10-11 00:25:58,743 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.07.c [2021-10-11 00:25:58,822 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:25:58,822 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:25:58,822 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:25:58,823 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:58,823 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:58,823 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:25:58,823 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:58,823 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:25:58,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:25:58,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:58,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:58,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:58,859 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:25:58,859 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:25:58,859 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:25:58,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:25:58,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:58,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:58,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:58,861 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:25:58,861 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:25:58,870 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2021-10-11 00:25:58,870 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0 && main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 3#L12-2true [2021-10-11 00:25:58,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:58,877 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:25:58,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:58,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802879759] [2021-10-11 00:25:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:58,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:58,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:58,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:58,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:58,989 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-11 00:25:58,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:58,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196750904] [2021-10-11 00:25:58,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:59,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:59,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:59,012 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:59,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:59,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-11 00:25:59,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:59,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556156866] [2021-10-11 00:25:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:59,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:59,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:59,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:59,133 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:25:59,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:25:59,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:25:59,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:25:59,135 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:25:59,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:25:59,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:25:59,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2021-10-11 00:25:59,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:25:59,136 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:25:59,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:59,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:59,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:59,359 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:25:59,369 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:25:59,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:25:59,379 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:25:59,393 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:25:59,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:25:59,439 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:25:59,439 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:25:59,466 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:25:59,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:25:59,909 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:25:59,911 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:25:59,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:25:59,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:25:59,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:25:59,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:25:59,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:59,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:25:59,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:25:59,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2021-10-11 00:25:59,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:25:59,913 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:25:59,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:59,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:59,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:00,050 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:26:00,055 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:00,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:00,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:00,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:00,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:00,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:00,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:26:00,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:26:00,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:00,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:00,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:00,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:00,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:00,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:00,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:26:00,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:26:00,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:00,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:00,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:00,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:00,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:00,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:00,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:00,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:00,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:00,217 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:26:00,226 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:26:00,227 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d93d01d-8c28-49d1-86c4-c068573a9bde/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:00,241 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:26:00,241 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:26:00,241 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:26:00,242 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:00,277 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:26:00,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:00,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:26:00,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:00,357 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:26:00,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:00,387 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:26:00,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2021-10-11 00:26:00,450 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2021-10-11 00:26:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:26:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:26:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-11 00:26:00,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-11 00:26:00,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:00,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:26:00,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:00,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:26:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:00,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-11 00:26:00,464 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:26:00,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-11 00:26:00,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:26:00,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:26:00,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:26:00,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:26:00,472 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:00,472 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:00,472 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:00,473 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:26:00,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:26:00,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:26:00,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:26:00,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:26:00 BoogieIcfgContainer [2021-10-11 00:26:00,480 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:26:00,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:00,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:00,481 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:00,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:58" (3/4) ... [2021-10-11 00:26:00,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:26:00,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:00,490 INFO L168 Benchmark]: Toolchain (without parser) took 2388.70 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 75.9 MB in the beginning and 88.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:00,491 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 73.4 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:00,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.15 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 86.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:00,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.67 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 84.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:00,497 INFO L168 Benchmark]: Boogie Preprocessor took 22.72 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.9 MB in the end (delta: 915.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:00,499 INFO L168 Benchmark]: RCFGBuilder took 297.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 75.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:00,501 INFO L168 Benchmark]: BuchiAutomizer took 1748.94 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 75.6 MB in the beginning and 88.6 MB in the end (delta: -13.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:00,508 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 132.1 MB. Free memory is still 88.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:00,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 73.4 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.15 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 86.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.67 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 84.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.72 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.9 MB in the end (delta: 915.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 297.21 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 75.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1748.94 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 75.6 MB in the beginning and 88.6 MB in the end (delta: -13.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.20 ms. Allocated memory is still 132.1 MB. Free memory is still 88.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...