./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G --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 640b8fd5c71f51509139c5a180a4d7fcd9c913685cbc00020531a66381fc7b29 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:35:36,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:35:36,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:35:36,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:35:36,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:35:36,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:35:36,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:35:36,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:35:36,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:35:36,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:35:36,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:35:36,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:35:36,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:35:36,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:35:36,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:35:36,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:35:36,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:35:36,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:35:36,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:35:36,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:35:36,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:35:36,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:35:36,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:35:36,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:35:36,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:35:36,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:35:36,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:35:36,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:35:36,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:35:36,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:35:36,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:35:36,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:35:36,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:35:36,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:35:36,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:35:36,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:35:36,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:35:36,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:35:36,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:35:36,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:35:36,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:35:36,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 13:35:36,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:35:36,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:35:36,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:35:36,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:35:36,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:35:36,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:35:36,562 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:35:36,562 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:35:36,562 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:35:36,563 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:35:36,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:35:36,564 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:35:36,564 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:35:36,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:35:36,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:35:36,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:35:36,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:35:36,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:35:36,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:35:36,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:35:36,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:35:36,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:35:36,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:35:36,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:35:36,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:35:36,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:35:36,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:35:36,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:35:36,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:35:36,570 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:35:36,571 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_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 640b8fd5c71f51509139c5a180a4d7fcd9c913685cbc00020531a66381fc7b29 [2021-11-23 13:35:36,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:35:36,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:35:36,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:35:36,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:35:36,922 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:35:36,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-restricted-15/b.12.c [2021-11-23 13:35:37,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/data/5e90a0b47/83473ebc267f4578a47a31c05a795995/FLAGe63acd3da [2021-11-23 13:35:37,542 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:35:37,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/sv-benchmarks/c/termination-restricted-15/b.12.c [2021-11-23 13:35:37,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/data/5e90a0b47/83473ebc267f4578a47a31c05a795995/FLAGe63acd3da [2021-11-23 13:35:37,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/data/5e90a0b47/83473ebc267f4578a47a31c05a795995 [2021-11-23 13:35:37,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:35:37,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:35:37,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:37,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:35:37,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:35:37,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:37" (1/1) ... [2021-11-23 13:35:37,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7ed559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:37, skipping insertion in model container [2021-11-23 13:35:37,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:35:37" (1/1) ... [2021-11-23 13:35:37,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:35:37,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:35:38,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:38,135 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:35:38,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:35:38,160 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:35:38,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38 WrapperNode [2021-11-23 13:35:38,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:35:38,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:38,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:35:38,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:35:38,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,186 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-23 13:35:38,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:35:38,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:35:38,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:35:38,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:35:38,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:35:38,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:35:38,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:35:38,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:35:38,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (1/1) ... [2021-11-23 13:35:38,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:38,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:38,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:35:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:35:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:35:38,357 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:35:38,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:35:38,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:35:38,453 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:35:38,454 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:35:38,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:38 BoogieIcfgContainer [2021-11-23 13:35:38,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:35:38,457 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:35:38,457 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:35:38,460 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:35:38,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:35:38,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:35:37" (1/3) ... [2021-11-23 13:35:38,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea316ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:35:38, skipping insertion in model container [2021-11-23 13:35:38,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:35:38,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:35:38" (2/3) ... [2021-11-23 13:35:38,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ea316ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:35:38, skipping insertion in model container [2021-11-23 13:35:38,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:35:38,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:38" (3/3) ... [2021-11-23 13:35:38,466 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.12.c [2021-11-23 13:35:38,516 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:35:38,516 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:35:38,516 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:35:38,517 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:35:38,517 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:35:38,517 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:35:38,517 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:35:38,517 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:35:38,532 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) [2021-11-23 13:35:38,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:38,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:35:38,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:35:38,570 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:35:38,570 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:35:38,570 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:35:38,571 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) [2021-11-23 13:35:38,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:38,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:35:38,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:35:38,574 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:35:38,574 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:35:38,581 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~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;main_~c~0#1 := 0; 9#L15-2true [2021-11-23 13:35:38,582 INFO L793 eck$LassoCheckResult]: Loop: 9#L15-2true assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 10#L12true assume main_~x~0#1 > 0;main_~x~0#1 := main_~x~0#1 - 1; 9#L15-2true [2021-11-23 13:35:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:35:38,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:38,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842313364] [2021-11-23 13:35:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:38,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,699 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:38,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-11-23 13:35:38,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:38,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406265476] [2021-11-23 13:35:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:38,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,758 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:38,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:38,778 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-11-23 13:35:38,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:38,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647385844] [2021-11-23 13:35:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:38,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,797 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:38,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:38,935 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:35:38,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:35:38,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:35:38,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:35:38,937 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:35:38,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:38,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:35:38,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:35:38,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration1_Loop [2021-11-23 13:35:38,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:35:38,938 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:35:38,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,120 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:35:39,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:35:39,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:39,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:39,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:35:39,171 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:35:39,172 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:35:39,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:39,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:39,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:35:39,255 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:35:39,255 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:35:39,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:35:39,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:39,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:39,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:35:39,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:35:39,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:39,429 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:35:39,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,436 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:35:39,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:35:39,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:35:39,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:35:39,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:35:39,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:35:39,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:35:39,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration1_Loop [2021-11-23 13:35:39,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:35:39,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:35:39,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:39,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:35:39,497 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:35:39,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:35:39,529 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 [2021-11-23 13:35:39,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:39,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:39,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:39,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:39,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:35:39,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:35:39,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:35:39,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,619 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:35:39,627 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 [2021-11-23 13:35:39,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:39,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:39,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:39,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:39,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:35:39,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:35:39,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:35:39,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,715 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 [2021-11-23 13:35:39,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:39,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:35:39,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:39,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:39,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:39,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:35:39,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:35:39,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:35:39,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:35:39,751 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:35:39,751 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:35:39,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:39,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:39,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:39,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:35:39,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:35:39,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:35:39,787 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:35:39,787 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 [] [2021-11-23 13:35:39,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:39,810 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:35:39,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:39,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:35:39,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:39,859 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:35:39,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:39,906 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 [2021-11-23 13:35:39,907 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:39,953 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 35 transitions. Complement of second has 5 states. [2021-11-23 13:35:39,955 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 [2021-11-23 13:35:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-23 13:35:39,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-23 13:35:39,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:39,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-23 13:35:39,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:39,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-23 13:35:39,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:39,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2021-11-23 13:35:39,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:40,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 11 states and 16 transitions. [2021-11-23 13:35:40,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-23 13:35:40,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-23 13:35:40,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-11-23 13:35:40,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:35:40,015 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-11-23 13:35:40,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-11-23 13:35:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-23 13:35:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-11-23 13:35:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2021-11-23 13:35:40,046 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-11-23 13:35:40,046 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-11-23 13:35:40,046 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:35:40,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2021-11-23 13:35:40,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:40,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:35:40,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:35:40,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-23 13:35:40,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:35:40,048 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 69#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~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;main_~c~0#1 := 0; 74#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 75#L12 [2021-11-23 13:35:40,048 INFO L793 eck$LassoCheckResult]: Loop: 75#L12 assume !(main_~x~0#1 > 0); 70#L15 assume main_~y~0#1 > 0;main_~y~0#1 := main_~y~0#1 - 1; 71#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 75#L12 [2021-11-23 13:35:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 13:35:40,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:40,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243590650] [2021-11-23 13:35:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:40,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,055 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2021-11-23 13:35:40,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:40,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603779289] [2021-11-23 13:35:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:40,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:40,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2021-11-23 13:35:40,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:40,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688401019] [2021-11-23 13:35:40,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:40,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,082 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:40,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:40,131 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:35:40,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:35:40,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:35:40,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:35:40,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 13:35:40,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,132 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:35:40,132 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:35:40,132 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration2_Loop [2021-11-23 13:35:40,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:35:40,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:35:40,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:35:40,209 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 13:35:40,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,237 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:40,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:40,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:35:40,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:35:40,278 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: [] [2021-11-23 13:35:40,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,319 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:40,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:40,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:35:40,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:35:40,347 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: [] [2021-11-23 13:35:40,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:40,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:40,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 13:35:40,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 13:35:40,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-23 13:35:40,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,447 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 13:35:40,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 13:35:40,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:40,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-23 13:35:40,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-23 13:35:40,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 13:35:40,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 13:35:40,564 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 13:35:40,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,570 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:35:40,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:35:40,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:35:40,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:35:40,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:35:40,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:35:40,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:35:40,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration2_Loop [2021-11-23 13:35:40,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:35:40,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:35:40,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:35:40,646 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:35:40,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:35:40,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,648 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,656 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 [2021-11-23 13:35:40,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-23 13:35:40,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:40,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:40,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:40,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:40,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:35:40,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:35:40,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:35:40,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,731 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-23 13:35:40,737 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 [2021-11-23 13:35:40,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:40,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:35:40,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:40,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:40,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:40,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:35:40,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:35:40,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:35:40,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,788 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-23 13:35:40,790 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 [2021-11-23 13:35:40,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:40,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:40,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:40,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:40,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:35:40,802 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:35:40,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:35:40,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,847 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-23 13:35:40,850 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 [2021-11-23 13:35:40,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:35:40,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:35:40,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:35:40,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:35:40,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:35:40,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:35:40,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:35:40,877 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:35:40,881 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 13:35:40,881 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 13:35:40,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:35:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:35:40,882 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:35:40,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:35:40,887 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 13:35:40,887 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:35:40,887 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 [] [2021-11-23 13:35:40,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-23 13:35:40,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:40,911 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 13:35:40,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:40,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:35:40,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:40,968 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:35:40,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:35:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:41,068 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-23 13:35:41,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:41,113 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 7 states. [2021-11-23 13:35:41,113 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 [2021-11-23 13:35:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-11-23 13:35:41,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-23 13:35:41,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:41,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-23 13:35:41,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:41,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-23 13:35:41,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:35:41,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2021-11-23 13:35:41,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:41,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 36 transitions. [2021-11-23 13:35:41,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-23 13:35:41,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-23 13:35:41,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 36 transitions. [2021-11-23 13:35:41,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 13:35:41,133 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2021-11-23 13:35:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 36 transitions. [2021-11-23 13:35:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-23 13:35:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 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) [2021-11-23 13:35:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2021-11-23 13:35:41,146 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-11-23 13:35:41,146 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-11-23 13:35:41,147 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:35:41,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2021-11-23 13:35:41,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 13:35:41,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:35:41,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:35:41,150 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-23 13:35:41,150 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 13:35:41,152 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 158#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~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;main_~c~0#1 := 0; 164#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 173#L12 assume !(main_~x~0#1 > 0); 159#L15 [2021-11-23 13:35:41,152 INFO L793 eck$LassoCheckResult]: Loop: 159#L15 assume !(main_~y~0#1 > 0); 160#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 165#L12 assume !(main_~x~0#1 > 0); 159#L15 [2021-11-23 13:35:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-23 13:35:41,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:41,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319944243] [2021-11-23 13:35:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:41,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:41,170 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:35:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:35:41,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:35:41,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:35:41,175 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2021-11-23 13:35:41,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:35:41,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028523599] [2021-11-23 13:35:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:35:41,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:35:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:35:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:35:41,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:35:41,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028523599] [2021-11-23 13:35:41,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028523599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:35:41,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:35:41,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:35:41,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360852755] [2021-11-23 13:35:41,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:35:41,272 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 13:35:41,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:35:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:35:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:35:41,278 INFO L87 Difference]: Start difference. First operand 21 states and 32 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:35:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:35:41,307 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2021-11-23 13:35:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:35:41,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2021-11-23 13:35:41,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:35:41,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-11-23 13:35:41,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 13:35:41,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 13:35:41,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 13:35:41,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:35:41,309 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:35:41,309 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:35:41,309 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:35:41,309 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 13:35:41,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:35:41,310 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:35:41,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-23 13:35:41,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:35:41 BoogieIcfgContainer [2021-11-23 13:35:41,318 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:35:41,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:35:41,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:35:41,319 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:35:41,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:35:38" (3/4) ... [2021-11-23 13:35:41,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:35:41,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:35:41,324 INFO L158 Benchmark]: Toolchain (without parser) took 3429.93ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 73.2MB in the beginning and 83.9MB in the end (delta: -10.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-23 13:35:41,324 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:41,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.38ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 89.9MB in the end (delta: -16.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:35:41,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.82ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 88.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:41,326 INFO L158 Benchmark]: Boogie Preprocessor took 16.98ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:35:41,327 INFO L158 Benchmark]: RCFGBuilder took 250.48ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 79.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:35:41,328 INFO L158 Benchmark]: BuchiAutomizer took 2861.64ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 79.4MB in the beginning and 84.9MB in the end (delta: -5.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-23 13:35:41,329 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 148.9MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 921.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:35:41,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.38ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 89.9MB in the end (delta: -16.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.82ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 88.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.98ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.48ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 79.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2861.64ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 79.4MB in the beginning and 84.9MB in the end (delta: -5.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 148.9MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 921.6kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 19 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 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: 85ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-23 13:35:41,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:35:41,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623d45ba-6dc6-4d8e-aef8-44220c99a7d5/bin/uautomizer-wIGwrQj20G/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