./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.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_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/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_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/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_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/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 ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:41:07,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:41:07,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:41:07,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:41:07,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:41:07,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:41:07,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:41:07,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:41:07,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:41:07,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:41:07,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:41:07,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:41:07,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:41:07,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:41:07,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:41:07,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:41:07,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:41:07,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:41:07,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:41:07,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:41:07,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:41:07,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:41:07,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:41:07,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:41:07,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:41:07,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:41:07,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:41:07,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:41:07,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:41:07,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:41:07,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:41:07,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:41:07,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:41:07,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:41:07,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:41:07,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:41:07,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:41:07,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:41:07,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:41:07,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:41:07,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:41:07,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:41:07,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:41:07,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:41:07,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:41:07,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:41:07,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:41:07,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:41:07,141 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:41:07,141 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:41:07,142 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:41:07,142 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:41:07,143 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:41:07,143 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:41:07,144 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:41:07,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:41:07,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:41:07,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:41:07,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:41:07,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:41:07,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:41:07,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:41:07,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:41:07,147 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:41:07,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:41:07,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:41:07,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:41:07,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:41:07,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:41:07,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:41:07,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:41:07,151 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:41:07,151 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_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 [2021-10-28 09:41:07,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:41:07,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:41:07,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:41:07,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:41:07,467 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:41:07,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-10-28 09:41:07,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/data/55ea388f2/b9998e03b0244518bf81bacc5f4ac9ca/FLAG4b3a51716 [2021-10-28 09:41:08,119 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:41:08,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2021-10-28 09:41:08,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/data/55ea388f2/b9998e03b0244518bf81bacc5f4ac9ca/FLAG4b3a51716 [2021-10-28 09:41:08,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/data/55ea388f2/b9998e03b0244518bf81bacc5f4ac9ca [2021-10-28 09:41:08,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:41:08,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:41:08,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:08,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:41:08,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:41:08,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7250f123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08, skipping insertion in model container [2021-10-28 09:41:08,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:41:08,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:41:08,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:08,776 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:41:08,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:08,806 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:41:08,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08 WrapperNode [2021-10-28 09:41:08,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:08,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:08,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:41:08,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:41:08,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:08,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:41:08,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:41:08,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:41:08,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:41:08,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:41:08,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:41:08,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:41:08,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (1/1) ... [2021-10-28 09:41:08,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:08,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:08,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:41:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:41:08,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:41:09,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:41:09,151 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:41:09,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:09 BoogieIcfgContainer [2021-10-28 09:41:09,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:41:09,158 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:41:09,158 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:41:09,163 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:41:09,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:41:09,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:41:08" (1/3) ... [2021-10-28 09:41:09,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36047cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:41:09, skipping insertion in model container [2021-10-28 09:41:09,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:41:09,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:08" (2/3) ... [2021-10-28 09:41:09,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36047cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:41:09, skipping insertion in model container [2021-10-28 09:41:09,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:41:09,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:09" (3/3) ... [2021-10-28 09:41:09,170 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2021-10-28 09:41:09,244 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:41:09,244 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:41:09,245 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:41:09,245 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:41:09,245 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:41:09,245 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:41:09,245 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:41:09,245 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:41:09,267 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 09:41:09,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:41:09,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:41:09,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:41:09,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:41:09,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:41:09,297 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:41:09,298 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 09:41:09,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:41:09,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:41:09,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:41:09,301 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:41:09,301 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:41:09,310 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L10-2true [2021-10-28 09:41:09,311 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 8#L12-3true main_~x~0 := main_~x~0 - 1; 5#L10-2true [2021-10-28 09:41:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,319 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:41:09,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568071859] [2021-10-28 09:41:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,433 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:09,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-28 09:41:09,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992309120] [2021-10-28 09:41:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:09,586 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 09:41:09,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:09,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992309120] [2021-10-28 09:41:09,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992309120] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:09,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:09,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:09,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634380972] [2021-10-28 09:41:09,594 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:41:09,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:09,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:09,616 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:09,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:09,637 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-28 09:41:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:09,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-28 09:41:09,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:41:09,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2021-10-28 09:41:09,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 09:41:09,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:41:09,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2021-10-28 09:41:09,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:41:09,648 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:41:09,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2021-10-28 09:41:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-10-28 09:41:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) 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 09:41:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2021-10-28 09:41:09,678 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:41:09,678 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-28 09:41:09,679 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:41:09,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2021-10-28 09:41:09,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:41:09,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:41:09,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:41:09,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:41:09,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:41:09,681 INFO L791 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 28#L10-2 [2021-10-28 09:41:09,681 INFO L793 eck$LassoCheckResult]: Loop: 28#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 28#L10-2 [2021-10-28 09:41:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,682 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 09:41:09,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597476818] [2021-10-28 09:41:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,688 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2021-10-28 09:41:09,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002618447] [2021-10-28 09:41:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,703 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,712 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,713 INFO L85 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2021-10-28 09:41:09,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249929127] [2021-10-28 09:41:09,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,723 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:09,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:09,833 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:09,834 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:09,834 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:09,834 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:09,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:41:09,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:09,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:09,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:09,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-10-28 09:41:09,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:09,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:09,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:41:09,866 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 09:41:09,871 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 09:41:09,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:09,968 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:41:09,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:09,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:10,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:10,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:41:10,049 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:10,051 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 09:41:10,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:41:10,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:10,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:10,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:10,108 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 09:41:10,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:41:10,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:10,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:10,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:41:10,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:41:10,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:10,287 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:41:10,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,292 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:10,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:10,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:10,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:10,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:41:10,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:10,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:10,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2021-10-28 09:41:10,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:10,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:10,295 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 09:41:10,304 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 09:41:10,311 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 09:41:10,392 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:10,398 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:41:10,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:41:10,437 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 09:41:10,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:10,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:10,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:10,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:10,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:10,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:10,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:10,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,526 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 09:41:10,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:10,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:10,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:10,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:10,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:10,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:10,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:41:10,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:10,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,645 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 09:41:10,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:10,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:41:10,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:10,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:10,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:10,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:41:10,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:41:10,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:41:10,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:41:10,675 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:41:10,675 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:41:10,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:10,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:10,685 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:10,687 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:41:10,687 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:41:10,687 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:41:10,688 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 09:41:10,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:41:10,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:10,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:41:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:10,764 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:10,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:10,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:41:10,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:10,838 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 09:41:10,842 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 09:41:10,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:10,898 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 12 transitions. Complement of second has 4 states. [2021-10-28 09:41:10,900 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 09:41:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:41:10,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 09:41:10,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:10,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 09:41:10,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:10,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-28 09:41:10,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:10,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-10-28 09:41:10,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:41:10,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-10-28 09:41:10,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:41:10,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 09:41:10,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 09:41:10,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:41:10,915 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 09:41:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 09:41:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-28 09:41:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 09:41:10,920 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:41:10,920 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:41:10,920 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:41:10,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 09:41:10,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:41:10,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:41:10,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:41:10,923 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:41:10,923 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:41:10,923 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 78#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2021-10-28 09:41:10,924 INFO L793 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2021-10-28 09:41:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:10,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:41:10,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:10,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544204104] [2021-10-28 09:41:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:10,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,939 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:10,949 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-28 09:41:10,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:10,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508486991] [2021-10-28 09:41:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:10,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,961 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:10,974 INFO L85 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-28 09:41:10,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:10,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8733045] [2021-10-28 09:41:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:10,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:10,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:11,032 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:11,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:11,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:11,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:11,034 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:41:11,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:11,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:11,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-10-28 09:41:11,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:11,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:11,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:41:11,067 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 09:41:11,071 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 09:41:11,115 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:11,115 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:41:11,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,117 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 09:41:11,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:11,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:11,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:41:11,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:11,170 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 09:41:11,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,219 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:11,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:11,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:41:11,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:11,256 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:41:11,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,287 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:41:11,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:11,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:11,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,329 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:41:11,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:41:11,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:11,495 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:41:11,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,502 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:11,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:11,502 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:11,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:11,502 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:41:11,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:11,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:11,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2021-10-28 09:41:11,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:11,503 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:11,504 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 09:41:11,524 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 09:41:11,527 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 09:41:11,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:11,575 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:41:11,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:41:11,581 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 09:41:11,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:11,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:11,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:11,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:11,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:11,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:11,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:11,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,669 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,680 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 09:41:11,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:11,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:11,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:11,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:11,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:11,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:11,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:41:11,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:11,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,769 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:41:11,770 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 09:41:11,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:11,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:41:11,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:11,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:11,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:11,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:41:11,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:41:11,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:41:11,788 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:41:11,789 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:41:11,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:11,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,790 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:41:11,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:41:11,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:41:11,826 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:41:11,826 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:41:11,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:11,852 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:41:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:11,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:11,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:11,886 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:41:11,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:11,887 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 09:41:11,888 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 09:41:11,888 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:11,904 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2021-10-28 09:41:11,904 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 09:41:11,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:41:11,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:41:11,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:11,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 09:41:11,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:11,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:41:11,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:11,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-10-28 09:41:11,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:41:11,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2021-10-28 09:41:11,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:41:11,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 09:41:11,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-10-28 09:41:11,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:41:11,910 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-28 09:41:11,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-10-28 09:41:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2021-10-28 09:41:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 09:41:11,912 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:41:11,912 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:41:11,912 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:41:11,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-28 09:41:11,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:41:11,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:41:11,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:41:11,914 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-28 09:41:11,914 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:41:11,914 INFO L791 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 129#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2021-10-28 09:41:11,914 INFO L793 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2021-10-28 09:41:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:11,915 INFO L85 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2021-10-28 09:41:11,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:11,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989134734] [2021-10-28 09:41:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:11,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:11,961 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 09:41:11,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:11,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989134734] [2021-10-28 09:41:11,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989134734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:41:11,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097731532] [2021-10-28 09:41:11,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:41:11,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:11,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:11,964 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:41:11,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 09:41:12,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:41:12,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:41:12,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:41:12,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:12,074 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 09:41:12,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097731532] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:41:12,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:41:12,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-28 09:41:12,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863633326] [2021-10-28 09:41:12,076 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:41:12,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:12,077 INFO L85 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-28 09:41:12,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:12,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621006147] [2021-10-28 09:41:12,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:12,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:12,089 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:41:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:41:12,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:41:12,129 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:12,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:12,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:12,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:12,129 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:41:12,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,129 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:12,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:12,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-10-28 09:41:12,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:12,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:12,131 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 09:41:12,137 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 09:41:12,141 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 09:41:12,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:12,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:41:12,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,208 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:12,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:12,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:41:12,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:12,230 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 09:41:12,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 09:41:12,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,274 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:41:12,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:12,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:12,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:41:12,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:41:12,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,350 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:41:12,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:12,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:41:12,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,417 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:41:12,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:41:12,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:41:12,617 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:41:12,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,620 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:41:12,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:41:12,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:41:12,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:41:12,621 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:41:12,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:41:12,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:41:12,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2021-10-28 09:41:12,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:41:12,621 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:41:12,622 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 09:41:12,637 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 09:41:12,640 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 09:41:12,689 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:41:12,689 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:41:12,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,693 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,702 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 09:41:12,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:12,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:12,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:12,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:12,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:12,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:12,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:41:12,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:12,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,774 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,781 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 09:41:12,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:12,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:12,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:12,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:12,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:41:12,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:41:12,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:41:12,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:41:12,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,857 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,861 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 09:41:12,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:41:12,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:41:12,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:41:12,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:41:12,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:41:12,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:41:12,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:41:12,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:41:12,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:41:12,889 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:41:12,889 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:41:12,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:41:12,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:12,892 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:12,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:41:12,893 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:41:12,893 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:41:12,893 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:41:12,893 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 09:41:12,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:12,938 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:41:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:12,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:12,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:12,992 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:41:12,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:12,993 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 09:41:12,994 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 09:41:12,995 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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 09:41:13,016 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. 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 13 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:41:13,016 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 09:41:13,016 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 09:41:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:41:13,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:41:13,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:13,018 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:41:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:13,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:13,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:13,065 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:41:13,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:13,065 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 09:41:13,067 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 09:41:13,067 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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 09:41:13,083 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. 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 13 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:41:13,084 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 09:41:13,085 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 09:41:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:41:13,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:41:13,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:13,088 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:41:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:13,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:13,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:13,137 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:41:13,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:13,137 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 09:41:13,138 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 09:41:13,138 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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 09:41:13,159 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. 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 10 states and 12 transitions. Complement of second has 4 states. [2021-10-28 09:41:13,160 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 09:41:13,160 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 09:41:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-28 09:41:13,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 09:41:13,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:13,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-28 09:41:13,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:13,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 09:41:13,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:41:13,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-28 09:41:13,164 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:41:13,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-28 09:41:13,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:41:13,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:41:13,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:41:13,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:41:13,165 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:13,165 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:13,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:13,166 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 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 09:41:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:13,166 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:41:13,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:41:13,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:41:13,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:41:13,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:41:13,167 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:13,167 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:41:13,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:41:13,168 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:41:13,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:41:13,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:41:13 BoogieIcfgContainer [2021-10-28 09:41:13,184 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:41:13,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:41:13,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:41:13,186 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:41:13,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:09" (3/4) ... [2021-10-28 09:41:13,193 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:41:13,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:41:13,195 INFO L168 Benchmark]: Toolchain (without parser) took 4678.45 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 79.3 MB in the beginning and 69.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:13,196 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:13,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 79.0 MB in the beginning and 124.4 MB in the end (delta: -45.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:13,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.50 ms. Allocated memory is still 148.9 MB. Free memory was 124.4 MB in the beginning and 123.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:13,200 INFO L168 Benchmark]: Boogie Preprocessor took 21.75 ms. Allocated memory is still 148.9 MB. Free memory was 123.2 MB in the beginning and 122.4 MB in the end (delta: 762.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:13,201 INFO L168 Benchmark]: RCFGBuilder took 287.14 ms. Allocated memory is still 148.9 MB. Free memory was 122.4 MB in the beginning and 114.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:13,205 INFO L168 Benchmark]: BuchiAutomizer took 4026.38 ms. Allocated memory is still 148.9 MB. Free memory was 114.0 MB in the beginning and 69.6 MB in the end (delta: 44.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:13,205 INFO L168 Benchmark]: Witness Printer took 7.88 ms. Allocated memory is still 148.9 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:13,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 79.0 MB in the beginning and 124.4 MB in the end (delta: -45.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.50 ms. Allocated memory is still 148.9 MB. Free memory was 124.4 MB in the beginning and 123.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.75 ms. Allocated memory is still 148.9 MB. Free memory was 123.2 MB in the beginning and 122.4 MB in the end (delta: 762.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 287.14 ms. Allocated memory is still 148.9 MB. Free memory was 122.4 MB in the beginning and 114.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4026.38 ms. Allocated memory is still 148.9 MB. Free memory was 114.0 MB in the beginning and 69.6 MB in the end (delta: 44.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. * Witness Printer took 7.88 ms. Allocated memory is still 148.9 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 17 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 80ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 09:41:13,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:13,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-28 09:41:13,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 09:41:13,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e5c5001-281c-4ca0-853d-3d2b4c66eb02/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...