./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0 --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 af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:04:06,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:04:06,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:04:06,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:04:06,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:04:06,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:04:06,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:04:06,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:04:06,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:04:06,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:04:06,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:04:06,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:04:06,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:04:06,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:04:06,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:04:06,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:04:06,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:04:06,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:04:06,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:04:06,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:04:06,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:04:06,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:04:06,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:04:06,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:04:06,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:04:06,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:04:06,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:04:06,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:04:06,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:04:06,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:04:06,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:04:06,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:04:06,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:04:06,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:04:06,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:04:06,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:04:06,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:04:06,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:04:06,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:04:06,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:04:06,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:04:06,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-22 16:04:06,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:04:06,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:04:06,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:04:06,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:04:06,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:04:06,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:04:06,444 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:04:06,445 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 16:04:06,445 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 16:04:06,445 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 16:04:06,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 16:04:06,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 16:04:06,446 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 16:04:06,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:04:06,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:04:06,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:04:06,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:04:06,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 16:04:06,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 16:04:06,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 16:04:06,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:04:06,448 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 16:04:06,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:04:06,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 16:04:06,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:04:06,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:04:06,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:04:06,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:04:06,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:04:06,450 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 16:04:06,451 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_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 [2021-11-22 16:04:06,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:04:06,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:04:06,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:04:06,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:04:06,820 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:04:06,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2021-11-22 16:04:06,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/data/0bd79defd/33456b75c7a8435d831728986443af90/FLAG2705cf8fd [2021-11-22 16:04:07,347 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:04:07,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2021-11-22 16:04:07,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/data/0bd79defd/33456b75c7a8435d831728986443af90/FLAG2705cf8fd [2021-11-22 16:04:07,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/data/0bd79defd/33456b75c7a8435d831728986443af90 [2021-11-22 16:04:07,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:04:07,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:04:07,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:07,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:04:07,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:04:07,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:07,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b23f356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07, skipping insertion in model container [2021-11-22 16:04:07,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:07,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:04:07,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:04:07,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:07,969 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:04:07,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:07,988 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:04:07,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07 WrapperNode [2021-11-22 16:04:07,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:07,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:07,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:04:07,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:04:07,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,013 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-22 16:04:08,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:08,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:04:08,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:04:08,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:04:08,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:04:08,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:04:08,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:04:08,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:04:08,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (1/1) ... [2021-11-22 16:04:08,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:08,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:08,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 16:04:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:04:08,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:04:08,190 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:04:08,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:04:08,246 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:04:08,253 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:04:08,254 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 16:04:08,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:08 BoogieIcfgContainer [2021-11-22 16:04:08,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:04:08,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 16:04:08,257 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 16:04:08,263 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 16:04:08,268 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:04:08,269 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 04:04:07" (1/3) ... [2021-11-22 16:04:08,270 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45d20f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 04:04:08, skipping insertion in model container [2021-11-22 16:04:08,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:04:08,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:07" (2/3) ... [2021-11-22 16:04:08,270 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45d20f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 04:04:08, skipping insertion in model container [2021-11-22 16:04:08,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:04:08,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:08" (3/3) ... [2021-11-22 16:04:08,272 INFO L388 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2021-11-22 16:04:08,316 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 16:04:08,316 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 16:04:08,316 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 16:04:08,316 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 16:04:08,316 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 16:04:08,316 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 16:04:08,316 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 16:04:08,316 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 16:04:08,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-22 16:04:08,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-22 16:04:08,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:04:08,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:04:08,349 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 16:04:08,350 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 16:04:08,350 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 16:04:08,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-22 16:04:08,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-22 16:04:08,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:04:08,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:04:08,352 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 16:04:08,352 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 16:04:08,358 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L11-2true [2021-11-22 16:04:08,359 INFO L793 eck$LassoCheckResult]: Loop: 10#L11-2true assume !!(main_~x~0#1 > 0); 3#L12-2true assume !(main_~y~0#1 > 0); 7#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 10#L11-2true [2021-11-22 16:04:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:08,365 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-22 16:04:08,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:08,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910426656] [2021-11-22 16:04:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:08,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-11-22 16:04:08,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:08,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411724618] [2021-11-22 16:04:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:08,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:08,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2021-11-22 16:04:08,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:08,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637228435] [2021-11-22 16:04:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:08,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,485 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:08,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:08,568 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:04:08,568 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:04:08,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:04:08,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:04:08,569 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 16:04:08,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:04:08,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:04:08,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2021-11-22 16:04:08,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:04:08,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:04:08,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:04:08,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 16:04:08,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:08,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:08,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 16:04:08,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:04:08,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:08,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:08,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:08,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:08,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 16:04:08,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 16:04:08,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:08,826 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 16:04:08,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:08,835 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:04:08,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:04:08,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:04:08,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:04:08,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 16:04:08,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:04:08,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:04:08,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2021-11-22 16:04:08,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:04:08,837 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:04:08,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:08,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:04:08,956 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 16:04:08,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:08,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:08,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:08,964 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 [2021-11-22 16:04:08,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 16:04:08,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:04:08,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 16:04:08,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:04:08,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:04:08,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:04:08,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 16:04:08,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 16:04:09,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 16:04:09,005 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-22 16:04:09,006 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 16:04:09,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 16:04:09,027 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 16:04:09,027 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 16:04:09,028 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 16:04:09,029 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-22 16:04:09,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,067 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 16:04:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:09,095 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:04:09,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:09,109 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 16:04:09,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:09,172 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 [2021-11-22 16:04:09,173 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) 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) [2021-11-22 16:04:09,244 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) 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 24 states and 36 transitions. Complement of second has 7 states. [2021-11-22 16:04:09,253 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 [2021-11-22 16:04:09,258 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) [2021-11-22 16:04:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-11-22 16:04:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-22 16:04:09,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:09,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-22 16:04:09,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:09,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-22 16:04:09,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:09,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-11-22 16:04:09,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-22 16:04:09,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-22 16:04:09,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-22 16:04:09,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-22 16:04:09,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-22 16:04:09,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-22 16:04:09,276 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-22 16:04:09,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-22 16:04:09,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-22 16:04:09,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-11-22 16:04:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-11-22 16:04:09,328 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-22 16:04:09,328 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-22 16:04:09,328 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 16:04:09,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-11-22 16:04:09,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-22 16:04:09,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:04:09,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:04:09,329 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 16:04:09,329 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-22 16:04:09,330 INFO L791 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 81#L11-2 assume !!(main_~x~0#1 > 0); 75#L12-2 [2021-11-22 16:04:09,330 INFO L793 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 75#L12-2 [2021-11-22 16:04:09,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-22 16:04:09,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:09,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364828870] [2021-11-22 16:04:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:09,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,336 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:09,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-22 16:04:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:09,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-22 16:04:09,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:09,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573304508] [2021-11-22 16:04:09,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:09,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,359 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:09,368 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-11-22 16:04:09,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:09,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229901470] [2021-11-22 16:04:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:09,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,381 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:09,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:09,417 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:04:09,418 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:04:09,418 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:04:09,418 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:04:09,418 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 16:04:09,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:04:09,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:04:09,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2021-11-22 16:04:09,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:04:09,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:04:09,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:04:09,496 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 16:04:09,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:04:09,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:09,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-22 16:04:09,524 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 16:04:09,525 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: [] [2021-11-22 16:04:09,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:04:09,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:09,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-22 16:04:09,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 16:04:09,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 16:04:09,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-22 16:04:09,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:04:09,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:09,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,687 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 16:04:09,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:04:09,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-22 16:04:09,757 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 16:04:09,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,767 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:04:09,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:04:09,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:04:09,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:04:09,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 16:04:09,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:04:09,768 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:04:09,768 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2021-11-22 16:04:09,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:04:09,768 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:04:09,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:04:09,820 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:04:09,821 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 16:04:09,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,824 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,830 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 [2021-11-22 16:04:09,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-22 16:04:09,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:04:09,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:04:09,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:04:09,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:04:09,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 16:04:09,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 16:04:09,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 16:04:09,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-22 16:04:09,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,873 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-22 16:04:09,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-22 16:04:09,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:04:09,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:04:09,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:04:09,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:04:09,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 16:04:09,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 16:04:09,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 16:04:09,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:09,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:09,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,965 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,977 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 [2021-11-22 16:04:09,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:04:09,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 16:04:09,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:04:09,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:04:09,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:04:09,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 16:04:09,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 16:04:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-22 16:04:10,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 16:04:10,011 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 16:04:10,011 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-22 16:04:10,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:04:10,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:10,013 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:10,041 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 16:04:10,041 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 16:04:10,042 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 16:04:10,042 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-11-22 16:04:10,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-22 16:04:10,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:10,065 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 16:04:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:10,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:04:10,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:10,092 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 16:04:10,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:10,093 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 [2021-11-22 16:04:10,094 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-11-22 16:04:10,102 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 14 states and 19 transitions. Complement of second has 4 states. [2021-11-22 16:04:10,103 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 [2021-11-22 16:04:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-11-22 16:04:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-22 16:04:10,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-22 16:04:10,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:10,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-22 16:04:10,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:10,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-22 16:04:10,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:04:10,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-11-22 16:04:10,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 16:04:10,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-22 16:04:10,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 16:04:10,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 16:04:10,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 16:04:10,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:04:10,108 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:04:10,108 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:04:10,108 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:04:10,108 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 16:04:10,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:04:10,109 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 16:04:10,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 16:04:10,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 04:04:10 BoogieIcfgContainer [2021-11-22 16:04:10,117 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 16:04:10,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:04:10,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:04:10,118 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:04:10,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:08" (3/4) ... [2021-11-22 16:04:10,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:04:10,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:04:10,123 INFO L158 Benchmark]: Toolchain (without parser) took 2371.65ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 62.8MB in the beginning and 110.0MB in the end (delta: -47.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-22 16:04:10,123 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:10,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.69ms. Allocated memory is still 104.9MB. Free memory was 62.6MB in the beginning and 80.4MB in the end (delta: -17.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:04:10,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.55ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:10,125 INFO L158 Benchmark]: Boogie Preprocessor took 16.69ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 78.2MB in the end (delta: 791.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:10,126 INFO L158 Benchmark]: RCFGBuilder took 224.45ms. Allocated memory is still 104.9MB. Free memory was 78.2MB in the beginning and 70.0MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 16:04:10,127 INFO L158 Benchmark]: BuchiAutomizer took 1860.04ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 70.0MB in the beginning and 110.0MB in the end (delta: -40.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-11-22 16:04:10,127 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 159.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:10,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.69ms. Allocated memory is still 104.9MB. Free memory was 62.6MB in the beginning and 80.4MB in the end (delta: -17.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.55ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.69ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 78.2MB in the end (delta: 791.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 224.45ms. Allocated memory is still 104.9MB. Free memory was 78.2MB in the beginning and 70.0MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1860.04ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 70.0MB in the beginning and 110.0MB in the end (delta: -40.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 159.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 16:04:10,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:10,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10682957-aacd-4035-acac-d5924c5285af/bin/uautomizer-w2VwFs6gM0/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