./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg --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 f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:39:41,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:39:41,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:39:41,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:39:41,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:39:41,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:39:41,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:39:41,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:39:41,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:39:41,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:39:41,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:39:41,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:39:41,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:39:41,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:39:41,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:39:41,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:39:41,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:39:41,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:39:41,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:39:41,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:39:41,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:39:41,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:39:41,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:39:41,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:39:41,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:39:41,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:39:41,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:39:41,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:39:41,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:39:41,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:39:41,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:39:41,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:39:41,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:39:41,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:39:41,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:39:41,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:39:41,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:39:41,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:39:41,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:39:41,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:39:41,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:39:41,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:39:41,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:39:41,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:39:41,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:39:41,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:39:41,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:39:41,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:39:41,495 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:39:41,496 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:39:41,496 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:39:41,496 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:39:41,496 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:39:41,496 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:39:41,497 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:39:41,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:39:41,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:39:41,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:39:41,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:39:41,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:39:41,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:39:41,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:39:41,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:39:41,499 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:39:41,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:39:41,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:39:41,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:39:41,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:39:41,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:39:41,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:39:41,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:39:41,502 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:39:41,502 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_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2021-10-28 09:39:41,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:39:41,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:39:41,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:39:41,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:39:41,846 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:39:41,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-28 09:39:41,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/data/636edf168/d00c112432cd4a8fbf54db6807a0dc9a/FLAG3c08ad98c [2021-10-28 09:39:42,457 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:39:42,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-28 09:39:42,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/data/636edf168/d00c112432cd4a8fbf54db6807a0dc9a/FLAG3c08ad98c [2021-10-28 09:39:42,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/data/636edf168/d00c112432cd4a8fbf54db6807a0dc9a [2021-10-28 09:39:42,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:39:42,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:39:42,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:39:42,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:39:42,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:39:42,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:39:42" (1/1) ... [2021-10-28 09:39:42,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0007d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:42, skipping insertion in model container [2021-10-28 09:39:42,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:39:42" (1/1) ... [2021-10-28 09:39:42,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:39:42,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:39:43,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:39:43,072 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:39:43,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:39:43,097 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:39:43,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43 WrapperNode [2021-10-28 09:39:43,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:39:43,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:39:43,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:39:43,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:39:43,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:39:43,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:39:43,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:39:43,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:39:43,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:39:43,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:39:43,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:39:43,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:39:43,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (1/1) ... [2021-10-28 09:39:43,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:43,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:43,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:43,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:39:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:39:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:39:43,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:39:43,370 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:39:43,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:43 BoogieIcfgContainer [2021-10-28 09:39:43,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:39:43,373 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:39:43,373 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:39:43,377 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:39:43,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:39:43,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:39:42" (1/3) ... [2021-10-28 09:39:43,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12e318ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:39:43, skipping insertion in model container [2021-10-28 09:39:43,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:39:43,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:39:43" (2/3) ... [2021-10-28 09:39:43,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12e318ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:39:43, skipping insertion in model container [2021-10-28 09:39:43,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:39:43,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:43" (3/3) ... [2021-10-28 09:39:43,383 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-10-28 09:39:43,434 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:39:43,434 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:39:43,435 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:39:43,435 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:39:43,435 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:39:43,435 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:39:43,436 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:39:43,436 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:39:43,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:43,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:39:43,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:39:43,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:39:43,475 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:39:43,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:39:43,476 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:39:43,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:43,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:39:43,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:39:43,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:39:43,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:39:43,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:39:43,485 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L17-2true [2021-10-28 09:39:43,485 INFO L793 eck$LassoCheckResult]: Loop: 5#L17-2true assume !!(main_~i~0 < 5);main_~j~0 := 0; 3#L19-2true assume !(main_~i~0 > 2 && main_~j~0 <= 9); 9#L19-3true main_~i~0 := 1 + main_~i~0; 5#L17-2true [2021-10-28 09:39:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:39:43,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:43,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632808939] [2021-10-28 09:39:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:43,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,601 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:43,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-28 09:39:43,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:43,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646383109] [2021-10-28 09:39:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:43,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,631 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:43,633 INFO L85 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-10-28 09:39:43,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:43,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359094919] [2021-10-28 09:39:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:43,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,644 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:43,653 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:43,748 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:43,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:43,749 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:43,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:43,749 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:39:43,749 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:43,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:43,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:43,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2021-10-28 09:39:43,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:43,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:43,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:43,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:43,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:43,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:43,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:43,925 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:39:43,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:43,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:43,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:43,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:39:43,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:43,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:43,995 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:43,995 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: [] [2021-10-28 09:39:44,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:44,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:44,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:39:44,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:44,082 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: [] [2021-10-28 09:39:44,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:44,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:44,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:39:44,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:44,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~j~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:39:44,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:39:44,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:44,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:44,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:39:44,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:39:44,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:44,312 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:39:44,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:39:44,319 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:44,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:44,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:44,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:44,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:39:44,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:44,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:44,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2021-10-28 09:39:44,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:44,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:44,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:44,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:44,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:44,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:44,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:44,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:39:44,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,461 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 [2021-10-28 09:39:44,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:39:44,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:44,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:44,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:44,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:44,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:39:44,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:39:44,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:39:44,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,550 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,558 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 [2021-10-28 09:39:44,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:44,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:39:44,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:44,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:44,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:44,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:39:44,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:39:44,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:39:44,604 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:39:44,608 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:39:44,608 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:39:44,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:44,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:44,624 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:44,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:39:44,664 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:39:44,665 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:39:44,665 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:39:44,665 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2021-10-28 09:39:44,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:44,712 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:39:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:44,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:44,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:44,800 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:39:44,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:44,922 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 [2021-10-28 09:39:44,923 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) 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) [2021-10-28 09:39:45,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.0) 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 30 states and 48 transitions. Complement of second has 9 states. [2021-10-28 09:39:45,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) 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) [2021-10-28 09:39:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2021-10-28 09:39:45,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-28 09:39:45,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-28 09:39:45,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-28 09:39:45,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2021-10-28 09:39:45,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:39:45,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:45,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 18 transitions. [2021-10-28 09:39:45,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:39:45,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:39:45,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-28 09:39:45,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:39:45,071 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 09:39:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-28 09:39:45,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 09:39:45,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 09:39:45,098 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 09:39:45,098 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 09:39:45,098 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:39:45,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-10-28 09:39:45,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:39:45,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:39:45,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:39:45,100 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:39:45,100 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:39:45,100 INFO L791 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 90#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 82#L19-2 [2021-10-28 09:39:45,100 INFO L793 eck$LassoCheckResult]: Loop: 82#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 83#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 91#L19-3 main_~i~0 := 1 + main_~i~0; 86#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 82#L19-2 [2021-10-28 09:39:45,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:39:45,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:45,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090278328] [2021-10-28 09:39:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:45,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:45,109 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:45,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:45,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1506610, now seen corresponding path program 1 times [2021-10-28 09:39:45,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:45,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520468555] [2021-10-28 09:39:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:45,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:45,124 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:45,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2021-10-28 09:39:45,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:45,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788469219] [2021-10-28 09:39:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:45,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:45,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:39:45,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788469219] [2021-10-28 09:39:45,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788469219] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:39:45,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494824919] [2021-10-28 09:39:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:45,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:39:45,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,206 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:39:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:45,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:45,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:45,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494824919] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:39:45,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:39:45,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 09:39:45,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384295698] [2021-10-28 09:39:45,343 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:45,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:45,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:45,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:45,343 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:39:45,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:45,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:45,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2021-10-28 09:39:45,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:45,344 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:45,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,430 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:45,431 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:39:45,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,432 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:39:45,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:45,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:45,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:45,471 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: [] [2021-10-28 09:39:45,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:45,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:45,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:45,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:39:45,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:45,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,577 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:39:45,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:39:45,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:45,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:39:45,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:45,631 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:45,631 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:45,631 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:45,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:45,631 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:39:45,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,632 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:45,632 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:45,632 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2021-10-28 09:39:45,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:45,632 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:45,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:45,761 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:45,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:39:45,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,764 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:39:45,774 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 [2021-10-28 09:39:45,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:45,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:39:45,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:45,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:45,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:45,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:39:45,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:39:45,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:39:45,813 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:39:45,813 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:39:45,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:45,836 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:45,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:39:45,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:39:45,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:39:45,838 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:39:45,838 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2021-10-28 09:39:45,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:45,862 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:39:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:45,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:45,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:45,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:45,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:39:45,946 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:39:45,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 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) [2021-10-28 09:39:45,987 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 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 22 states and 31 transitions. Complement of second has 6 states. [2021-10-28 09:39:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:45,988 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) [2021-10-28 09:39:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-28 09:39:45,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 09:39:45,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 09:39:45,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-28 09:39:45,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:45,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2021-10-28 09:39:45,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:39:46,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 22 transitions. [2021-10-28 09:39:46,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 09:39:46,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:39:46,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2021-10-28 09:39:46,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:39:46,002 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-28 09:39:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2021-10-28 09:39:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-28 09:39:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2021-10-28 09:39:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2021-10-28 09:39:46,005 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2021-10-28 09:39:46,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:39:46,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:39:46,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:39:46,015 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. 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) [2021-10-28 09:39:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:46,050 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2021-10-28 09:39:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:39:46,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2021-10-28 09:39:46,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:39:46,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 24 transitions. [2021-10-28 09:39:46,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 09:39:46,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:39:46,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2021-10-28 09:39:46,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:39:46,058 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 09:39:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2021-10-28 09:39:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-28 09:39:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-10-28 09:39:46,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2021-10-28 09:39:46,061 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2021-10-28 09:39:46,061 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2021-10-28 09:39:46,061 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:39:46,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2021-10-28 09:39:46,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:39:46,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:39:46,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:39:46,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:39:46,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:39:46,063 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 208#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 209#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 205#L19-2 [2021-10-28 09:39:46,063 INFO L793 eck$LassoCheckResult]: Loop: 205#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 205#L19-2 [2021-10-28 09:39:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-28 09:39:46,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:46,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797243182] [2021-10-28 09:39:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:46,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,078 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:46,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:46,089 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-28 09:39:46,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:46,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332676136] [2021-10-28 09:39:46,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:46,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,098 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:46,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:46,108 INFO L85 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2021-10-28 09:39:46,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:46,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083570372] [2021-10-28 09:39:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:46,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,122 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:46,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:46,153 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:46,154 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:46,154 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:46,154 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:46,154 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:39:46,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:46,155 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:46,155 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2021-10-28 09:39:46,155 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:46,155 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:46,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:46,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:39:46,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,245 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:46,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:46,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:39:46,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:46,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:39:46,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,336 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:46,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:46,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:39:46,376 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:39:46,376 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:39:46,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,419 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:46,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:46,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:39:46,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,496 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:39:46,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:46,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:39:46,576 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:39:46,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,584 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:46,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:46,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:46,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:46,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:39:46,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:46,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:46,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2021-10-28 09:39:46,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:46,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:46,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:46,655 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:46,658 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:39:46,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,661 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:39:46,670 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 [2021-10-28 09:39:46,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:46,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:39:46,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:46,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:46,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:46,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:39:46,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:39:46,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:39:46,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,734 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,740 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 [2021-10-28 09:39:46,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:46,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:39:46,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:46,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:46,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:46,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:39:46,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:39:46,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:39:46,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:39:46,768 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:39:46,768 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:39:46,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:46,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,772 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:46,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:39:46,774 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:39:46,774 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:39:46,774 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:39:46,774 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2021-10-28 09:39:46,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:46,801 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:39:46,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:46,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:46,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:46,852 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:46,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:46,853 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:39:46,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:46,870 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 46 transitions. Complement of second has 5 states. [2021-10-28 09:39:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 09:39:46,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 09:39:46,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:46,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-28 09:39:46,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:46,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 09:39:46,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:46,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 46 transitions. [2021-10-28 09:39:46,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:39:46,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 28 states and 39 transitions. [2021-10-28 09:39:46,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 09:39:46,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:39:46,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2021-10-28 09:39:46,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:39:46,876 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2021-10-28 09:39:46,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2021-10-28 09:39:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2021-10-28 09:39:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 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) [2021-10-28 09:39:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-10-28 09:39:46,880 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-28 09:39:46,880 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-10-28 09:39:46,880 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:39:46,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2021-10-28 09:39:46,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:39:46,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:39:46,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:39:46,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2021-10-28 09:39:46,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:39:46,882 INFO L791 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 290#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 287#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 288#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 289#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 295#L19-3 main_~i~0 := 1 + main_~i~0; 296#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 297#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2021-10-28 09:39:46,882 INFO L793 eck$LassoCheckResult]: Loop: 298#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2021-10-28 09:39:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 2 times [2021-10-28 09:39:46,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:46,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953054612] [2021-10-28 09:39:46,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:46,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:46,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:39:46,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953054612] [2021-10-28 09:39:46,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953054612] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:39:46,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245390907] [2021-10-28 09:39:46,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:39:46,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:39:46,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:46,986 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 09:39:47,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:39:47,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:39:47,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:47,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245390907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:39:47,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:39:47,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-28 09:39:47,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437687335] [2021-10-28 09:39:47,168 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:39:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-28 09:39:47,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:39:47,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668990429] [2021-10-28 09:39:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:39:47,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:39:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:47,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:39:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:39:47,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:47,198 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:47,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:47,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:47,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:47,199 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:39:47,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:47,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:47,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2021-10-28 09:39:47,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:47,200 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:47,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,252 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:47,252 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:39:47,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:47,266 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:39:47,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:47,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:39:47,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:47,338 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:39:47,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:39:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:39:47,386 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:39:47,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,392 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:39:47,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:39:47,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:39:47,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:39:47,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:39:47,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:39:47,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:39:47,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2021-10-28 09:39:47,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:39:47,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:39:47,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:39:47,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:39:47,471 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:39:47,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:47,476 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,480 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 [2021-10-28 09:39:47,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:39:47,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:39:47,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:39:47,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:39:47,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:39:47,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:39:47,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:39:47,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:39:47,501 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:39:47,504 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:39:47,504 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:39:47,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:39:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:39:47,506 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:39:47,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:39:47,507 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:39:47,507 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:39:47,507 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:39:47,508 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2021-10-28 09:39:47,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:47,532 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:39:47,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,593 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:47,595 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:39:47,595 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,610 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 43 transitions. Complement of second has 5 states. [2021-10-28 09:39:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 09:39:47,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 09:39:47,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:47,613 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:39:47,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,674 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:47,675 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:39:47,675 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,697 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 43 transitions. Complement of second has 5 states. [2021-10-28 09:39:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 09:39:47,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 09:39:47,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:47,700 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:39:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:39:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:39:47,756 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:39:47,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:39:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:47,758 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:39:47,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,776 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 34 transitions. Complement of second has 4 states. [2021-10-28 09:39:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:39:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-28 09:39:47,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 09:39:47,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:47,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2021-10-28 09:39:47,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:47,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 09:39:47,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:39:47,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2021-10-28 09:39:47,785 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:39:47,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2021-10-28 09:39:47,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:39:47,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:39:47,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:39:47,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:39:47,786 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:39:47,786 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:39:47,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:39:47,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:39:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:39:47,788 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:39:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:39:47,788 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:39:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:39:47,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:39:47,789 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:39:47,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:39:47,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:39:47,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:39:47,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:39:47,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:39:47,790 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:39:47,790 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:39:47,790 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:39:47,790 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:39:47,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:39:47,791 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:39:47,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:39:47,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:39:47 BoogieIcfgContainer [2021-10-28 09:39:47,798 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:39:47,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:39:47,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:39:47,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:39:47,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:39:43" (3/4) ... [2021-10-28 09:39:47,803 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:39:47,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:39:47,806 INFO L168 Benchmark]: Toolchain (without parser) took 4972.06 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 91.1 MB in the beginning and 104.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:47,816 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 130.0 MB. Free memory is still 107.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:47,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.87 ms. Allocated memory is still 130.0 MB. Free memory was 90.9 MB in the beginning and 106.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:47,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.92 ms. Allocated memory is still 130.0 MB. Free memory was 106.4 MB in the beginning and 105.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:47,821 INFO L168 Benchmark]: Boogie Preprocessor took 20.83 ms. Allocated memory is still 130.0 MB. Free memory was 105.2 MB in the beginning and 104.3 MB in the end (delta: 915.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:47,822 INFO L168 Benchmark]: RCFGBuilder took 221.86 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 96.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:47,822 INFO L168 Benchmark]: BuchiAutomizer took 4425.29 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 96.3 MB in the beginning and 105.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:39:47,825 INFO L168 Benchmark]: Witness Printer took 4.91 ms. Allocated memory is still 161.5 MB. Free memory was 105.1 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:39:47,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 130.0 MB. Free memory is still 107.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.87 ms. Allocated memory is still 130.0 MB. Free memory was 90.9 MB in the beginning and 106.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.92 ms. Allocated memory is still 130.0 MB. Free memory was 106.4 MB in the beginning and 105.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.83 ms. Allocated memory is still 130.0 MB. Free memory was 105.2 MB in the beginning and 104.3 MB in the end (delta: 915.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 221.86 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 96.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4425.29 ms. Allocated memory was 130.0 MB in the beginning and 161.5 MB in the end (delta: 31.5 MB). Free memory was 96.3 MB in the beginning and 105.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.91 ms. Allocated memory is still 161.5 MB. Free memory was 105.1 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function 7 + -2 * i and consists of 4 locations. One deterministic module has affine ranking function 19 + -2 * j and consists of 3 locations. One nondeterministic module has affine ranking function 19 + -2 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 38 SDtfs, 37 SDslu, 13 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp94 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:39:47,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:48,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-28 09:39:48,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:39:48,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3a557d-3822-447f-94d2-5ab9afa6e51d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...