./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.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_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/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_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/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_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:41:22,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:41:22,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:41:22,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:41:22,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:41:22,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:41:22,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:41:22,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:41:22,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:41:22,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:41:22,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:41:22,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:41:22,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:41:22,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:41:22,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:41:22,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:41:22,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:41:22,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:41:22,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:41:22,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:41:22,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:41:22,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:41:22,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:41:22,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:41:22,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:41:22,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:41:22,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:41:22,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:41:22,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:41:22,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:41:22,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:41:22,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:41:22,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:41:22,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:41:22,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:41:22,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:41:22,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:41:22,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:41:22,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:41:22,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:41:22,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:41:22,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:41:22,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:41:22,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:41:22,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:41:22,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:41:22,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:41:22,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:41:22,210 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:41:22,211 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:41:22,211 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:41:22,211 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:41:22,211 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:41:22,211 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:41:22,212 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:41:22,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:41:22,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:41:22,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:41:22,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:41:22,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:41:22,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:41:22,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:41:22,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:41:22,213 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:41:22,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:41:22,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:41:22,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:41:22,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:41:22,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:41:22,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:41:22,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:41:22,216 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:41:22,216 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_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-10-28 08:41:22,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:41:22,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:41:22,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:41:22,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:41:22,566 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:41:22,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-28 08:41:22,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/data/ae326e075/33ceb6a03b0f45358ba3c8a3d12bc8f9/FLAGe4a0015e3 [2021-10-28 08:41:23,132 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:41:23,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-28 08:41:23,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/data/ae326e075/33ceb6a03b0f45358ba3c8a3d12bc8f9/FLAGe4a0015e3 [2021-10-28 08:41:23,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/data/ae326e075/33ceb6a03b0f45358ba3c8a3d12bc8f9 [2021-10-28 08:41:23,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:41:23,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:41:23,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:23,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:41:23,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:41:23,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5738e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23, skipping insertion in model container [2021-10-28 08:41:23,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:41:23,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:41:23,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:23,767 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:41:23,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:23,801 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:41:23,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23 WrapperNode [2021-10-28 08:41:23,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:23,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:23,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:41:23,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:41:23,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:23,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:41:23,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:41:23,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:41:23,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:41:23,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:41:23,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:41:23,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:41:23,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (1/1) ... [2021-10-28 08:41:23,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:23,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:23,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:23,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:41:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:41:23,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:41:24,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:41:24,155 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:41:24,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:24 BoogieIcfgContainer [2021-10-28 08:41:24,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:41:24,160 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:41:24,160 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:41:24,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:41:24,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:24,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:41:23" (1/3) ... [2021-10-28 08:41:24,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cbf0933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:24, skipping insertion in model container [2021-10-28 08:41:24,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:24,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:23" (2/3) ... [2021-10-28 08:41:24,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cbf0933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:24, skipping insertion in model container [2021-10-28 08:41:24,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:24,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:24" (3/3) ... [2021-10-28 08:41:24,170 INFO L389 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-28 08:41:24,257 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:41:24,257 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:41:24,257 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:41:24,258 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:41:24,258 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:41:24,258 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:41:24,258 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:41:24,258 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:41:24,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:24,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:24,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:24,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:24,312 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:41:24,313 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:24,313 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:41:24,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:24,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:24,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:24,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:24,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:41:24,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:24,324 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L25-2true [2021-10-28 08:41:24,325 INFO L793 eck$LassoCheckResult]: Loop: 4#L25-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 9#L25true assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 11#L26true assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 8#L26-2true main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4#L25-2true [2021-10-28 08:41:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:24,334 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 08:41:24,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:24,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445500142] [2021-10-28 08:41:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:24,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,442 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1234440, now seen corresponding path program 1 times [2021-10-28 08:41:24,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:24,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19542736] [2021-10-28 08:41:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:24,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,511 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 29863591, now seen corresponding path program 1 times [2021-10-28 08:41:24,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:24,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974704345] [2021-10-28 08:41:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:24,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,547 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:24,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:24,748 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:24,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:24,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:24,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:24,749 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:24,749 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:24,749 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:24,749 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:24,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-28 08:41:24,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:24,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:24,771 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 08:41:24,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:24,802 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 08:41:24,806 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 08:41:24,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:24,924 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:24,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:24,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:24,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:24,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:24,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:24,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:41:24,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:24,965 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 08:41:24,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:24,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:24,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:24,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:24,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:41:24,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:24,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:25,012 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:25,012 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 08:41:25,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:25,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:25,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:41:25,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:25,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:25,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:25,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:25,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:41:25,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:41:25,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:25,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:25,249 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:25,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,252 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:25,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:25,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:25,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:25,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:25,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:25,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:25,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-28 08:41:25,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:25,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:25,256 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 08:41:25,260 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 08:41:25,263 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 08:41:25,266 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 08:41:25,337 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:25,342 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:25,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:41:25,392 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 08:41:25,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:25,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:25,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:25,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:25,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:25,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:25,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:25,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:41:25,504 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 08:41:25,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:25,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:25,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:25,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:25,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:25,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:25,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:25,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:41:25,583 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 08:41:25,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:25,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:25,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:25,594 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:25,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:25,596 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:25,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:25,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:25,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,641 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:41:25,646 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 08:41:25,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:25,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:25,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:25,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:25,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:25,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:25,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:25,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:25,677 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:25,677 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:25,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:25,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:25,704 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:25,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:25,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:25,730 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:25,731 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:25,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:41:25,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:25,756 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:25,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:25,805 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:41:25,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:25,947 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 08:41:25,967 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:25,969 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:26,050 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 55 transitions. Complement of second has 8 states. [2021-10-28 08:41:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-28 08:41:26,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 08:41:26,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 08:41:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-28 08:41:26,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2021-10-28 08:41:26,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 08:41:26,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 30 transitions. [2021-10-28 08:41:26,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 08:41:26,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 08:41:26,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-28 08:41:26,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:26,076 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 08:41:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-28 08:41:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-28 08:41:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 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 08:41:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-10-28 08:41:26,101 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 08:41:26,101 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 08:41:26,101 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:41:26,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-10-28 08:41:26,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 08:41:26,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:26,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:26,102 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 08:41:26,103 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:26,103 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 100#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-10-28 08:41:26,103 INFO L793 eck$LassoCheckResult]: Loop: 96#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 108#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 101#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-10-28 08:41:26,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 08:41:26,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:26,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741597352] [2021-10-28 08:41:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:26,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,110 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1328732, now seen corresponding path program 1 times [2021-10-28 08:41:26,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:26,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536101280] [2021-10-28 08:41:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:26,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,122 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:26,129 INFO L85 PathProgramCache]: Analyzing trace with hash 925773253, now seen corresponding path program 1 times [2021-10-28 08:41:26,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:26,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952595232] [2021-10-28 08:41:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:26,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,136 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,143 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:26,181 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:26,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:26,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:26,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:26,182 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:26,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:26,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:26,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-28 08:41:26,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:26,182 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:26,184 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 08:41:26,187 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 08:41:26,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:26,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:26,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:26,257 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:26,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,258 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:26,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:26,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:41:26,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:26,287 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 08:41:26,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:26,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,324 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:26,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:26,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:41:26,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:26,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,394 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:26,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:26,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:41:26,508 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:26,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:26,512 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:26,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:26,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:26,512 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:26,512 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:26,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:26,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:26,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-28 08:41:26,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:26,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:26,514 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 08:41:26,532 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 08:41:26,544 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 08:41:26,547 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 08:41:26,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:26,636 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:26,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,640 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,652 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 08:41:26,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:26,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:26,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:26,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:26,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:26,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:26,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:41:26,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:26,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:26,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,719 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:41:26,724 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 08:41:26,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:26,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:26,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:26,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:26,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:26,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:26,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:26,779 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:26,793 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:26,793 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:26,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:26,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:26,803 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:26,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-28 08:41:26,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:26,813 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:26,813 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:26,813 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:26,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:41:26,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:26,838 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:26,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:26,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:26,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:26,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:26,920 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 08:41:26,921 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 08:41:26,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:26,957 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 44 transitions. Complement of second has 7 states. [2021-10-28 08:41:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 08:41:26,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 08:41:26,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:41:26,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-28 08:41:26,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:26,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2021-10-28 08:41:26,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:26,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 30 transitions. [2021-10-28 08:41:26,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 08:41:26,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 08:41:26,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-28 08:41:26,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:26,971 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 08:41:26,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-28 08:41:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 08:41:26,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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 08:41:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-10-28 08:41:26,976 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-28 08:41:26,976 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-28 08:41:26,976 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:41:26,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-10-28 08:41:26,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:26,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:26,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:26,981 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:41:26,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:26,981 INFO L791 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 184#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 185#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-10-28 08:41:26,982 INFO L793 eck$LassoCheckResult]: Loop: 192#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 195#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 190#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 198#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-10-28 08:41:26,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash 31084, now seen corresponding path program 1 times [2021-10-28 08:41:26,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:26,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568732631] [2021-10-28 08:41:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:26,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:26,996 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:27,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:27,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:27,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 1 times [2021-10-28 08:41:27,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:27,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597305500] [2021-10-28 08:41:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:27,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:27,022 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:27,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:27,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:27,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1357271332, now seen corresponding path program 1 times [2021-10-28 08:41:27,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:27,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145190393] [2021-10-28 08:41:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:27,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:27,050 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:27,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:27,106 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:27,106 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:27,106 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:27,106 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:27,107 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:27,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:27,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:27,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-28 08:41:27,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:27,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:27,112 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 08:41:27,116 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 08:41:27,119 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 08:41:27,129 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 08:41:27,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:27,195 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:27,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,200 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:27,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:41:27,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:27,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:27,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:27,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,261 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:41:27,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:27,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:27,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:27,277 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 08:41:27,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:27,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,303 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:41:27,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:27,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:27,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 08:41:27,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,384 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:41:27,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:27,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:27,527 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:27,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:27,530 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:27,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:27,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:27,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:27,530 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:27,530 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,530 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:27,530 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:27,530 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-28 08:41:27,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:27,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:27,547 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 08:41:27,550 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 08:41:27,553 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 08:41:27,566 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 08:41:27,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:27,652 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:27,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,656 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,664 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 08:41:27,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:27,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:27,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:27,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:27,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:27,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:27,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:27,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:41:27,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:27,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:27,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,742 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,748 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 08:41:27,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:27,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:27,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:27,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:27,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:27,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:27,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:41:27,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:27,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:27,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,821 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,823 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 08:41:27,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:27,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:27,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:27,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:27,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:27,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:27,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:27,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:41:27,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:27,855 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:27,855 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:27,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,856 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:27,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:27,859 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:27,859 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 08:41:27,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:41:27,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 08:41:27,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:27,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:27,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:27,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:27,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:27,971 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 08:41:27,972 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:27,973 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 08:41:28,025 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 48 transitions. Complement of second has 7 states. [2021-10-28 08:41:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 08:41:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 08:41:28,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 08:41:28,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 08:41:28,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-28 08:41:28,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2021-10-28 08:41:28,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:28,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 38 transitions. [2021-10-28 08:41:28,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 08:41:28,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 08:41:28,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 38 transitions. [2021-10-28 08:41:28,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:28,034 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 38 transitions. [2021-10-28 08:41:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 38 transitions. [2021-10-28 08:41:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-10-28 08:41:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 23 states have internal predecessors, (35), 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 08:41:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2021-10-28 08:41:28,041 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-28 08:41:28,041 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-28 08:41:28,042 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:41:28,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 35 transitions. [2021-10-28 08:41:28,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:41:28,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:28,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:28,045 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 08:41:28,045 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:28,045 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 286#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 295#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 299#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 300#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-10-28 08:41:28,045 INFO L793 eck$LassoCheckResult]: Loop: 297#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 287#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 288#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 302#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-10-28 08:41:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1357211759, now seen corresponding path program 1 times [2021-10-28 08:41:28,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:28,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369135023] [2021-10-28 08:41:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:28,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1419720, now seen corresponding path program 2 times [2021-10-28 08:41:28,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:28,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8655435] [2021-10-28 08:41:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:28,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,089 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,098 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash -369493672, now seen corresponding path program 1 times [2021-10-28 08:41:28,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:28,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432810949] [2021-10-28 08:41:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:28,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,122 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:28,184 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:28,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:28,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:28,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:28,184 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:28,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:28,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:28,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-28 08:41:28,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:28,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:28,186 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 08:41:28,190 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 08:41:28,200 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 08:41:28,203 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 08:41:28,265 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:28,265 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:28,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,266 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:28,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:28,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:41:28,284 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:28,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:28,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 08:41:28,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,306 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:41:28,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:28,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:28,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:28,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,348 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:41:28,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:28,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:28,520 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:28,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:28,527 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:28,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:28,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:28,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:28,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:28,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:28,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:28,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-28 08:41:28,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:28,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:28,529 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 08:41:28,532 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 08:41:28,578 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 08:41:28,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:28,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:28,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:28,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:28,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,651 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,654 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 08:41:28,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:28,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:28,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:28,664 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:28,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:28,665 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:28,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:28,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:41:28,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:28,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 08:41:28,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:28,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,725 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,727 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 08:41:28,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:28,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:28,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:28,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:28,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:28,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:28,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:28,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:41:28,759 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:28,763 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:28,763 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:28,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:28,764 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:28,767 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:28,767 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:28,767 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:28,767 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:28,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:41:28,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 08:41:28,796 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:28,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:28,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:28,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:28,860 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:41:28,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:28,906 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 08:41:28,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:28,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 08:41:28,946 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 78 states and 116 transitions. Complement of second has 7 states. [2021-10-28 08:41:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 08:41:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 08:41:28,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 08:41:28,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 08:41:28,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 08:41:28,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:28,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-10-28 08:41:28,953 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 08:41:28,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 55 states and 80 transitions. [2021-10-28 08:41:28,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 08:41:28,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-28 08:41:28,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 80 transitions. [2021-10-28 08:41:28,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:28,956 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-28 08:41:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 80 transitions. [2021-10-28 08:41:28,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2021-10-28 08:41:28,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5) internal successors, (63), 41 states have internal predecessors, (63), 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 08:41:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2021-10-28 08:41:28,966 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-28 08:41:28,966 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-28 08:41:28,966 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:41:28,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 63 transitions. [2021-10-28 08:41:28,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 08:41:28,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:28,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:28,969 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:28,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:28,972 INFO L791 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 446#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 469#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 470#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 462#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 463#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 473#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 474#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-10-28 08:41:28,972 INFO L793 eck$LassoCheckResult]: Loop: 447#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 448#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 450#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 452#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-10-28 08:41:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash 876108449, now seen corresponding path program 1 times [2021-10-28 08:41:28,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:28,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497095840] [2021-10-28 08:41:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:28,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,985 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:28,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:28,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1529372, now seen corresponding path program 2 times [2021-10-28 08:41:28,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:28,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671580171] [2021-10-28 08:41:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:28,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,010 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:29,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1432445116, now seen corresponding path program 1 times [2021-10-28 08:41:29,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:29,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322804909] [2021-10-28 08:41:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:29,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,030 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:29,077 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:29,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:29,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:29,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:29,077 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:29,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:29,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:29,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-28 08:41:29,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:29,078 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:29,080 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 08:41:29,090 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 08:41:29,093 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 08:41:29,095 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 08:41:29,149 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:29,149 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:29,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,151 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:29,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:29,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:41:29,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 08:41:29,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,190 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:41:29,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:29,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:29,229 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:29,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:29,232 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:29,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:29,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:29,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:29,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:29,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:29,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:29,232 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-28 08:41:29,232 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:29,233 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:29,233 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 08:41:29,237 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 08:41:29,243 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 08:41:29,247 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 08:41:29,295 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:29,296 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:29,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,320 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,321 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 08:41:29,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:29,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:29,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:29,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:29,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:29,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:29,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:41:29,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:29,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:29,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,395 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,397 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 08:41:29,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:41:29,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:29,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:29,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:29,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:29,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:29,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:29,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:29,410 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:29,413 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:29,413 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:29,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,414 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,416 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:29,416 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:29,416 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:29,416 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:29,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:41:29,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 08:41:29,437 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:29,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:29,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:29,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:29,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:29,532 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 08:41:29,532 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 08:41:29,533 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 08:41:29,553 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 106 states and 158 transitions. Complement of second has 7 states. [2021-10-28 08:41:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 08:41:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 08:41:29,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 08:41:29,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:29,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-28 08:41:29,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:29,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-28 08:41:29,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:29,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 158 transitions. [2021-10-28 08:41:29,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 08:41:29,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 90 states and 129 transitions. [2021-10-28 08:41:29,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 08:41:29,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 08:41:29,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2021-10-28 08:41:29,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:29,562 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-10-28 08:41:29,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2021-10-28 08:41:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2021-10-28 08:41:29,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.48) internal successors, (111), 74 states have internal predecessors, (111), 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 08:41:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-28 08:41:29,570 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-28 08:41:29,570 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-28 08:41:29,570 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:41:29,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 111 transitions. [2021-10-28 08:41:29,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 08:41:29,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:29,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:29,573 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:29,573 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:29,573 INFO L791 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 654#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 659#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 660#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 686#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 685#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 683#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 680#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 679#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 678#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-10-28 08:41:29,573 INFO L793 eck$LassoCheckResult]: Loop: 675#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 722#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 717#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 718#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-10-28 08:41:29,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:29,574 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 2 times [2021-10-28 08:41:29,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:29,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588515513] [2021-10-28 08:41:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:29,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,581 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,588 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:29,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:29,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 2 times [2021-10-28 08:41:29,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:29,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624000220] [2021-10-28 08:41:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:29,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,594 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:29,598 INFO L85 PathProgramCache]: Analyzing trace with hash -4707247, now seen corresponding path program 1 times [2021-10-28 08:41:29,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:29,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805981141] [2021-10-28 08:41:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:29,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:29,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:29,649 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:29,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:29,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:29,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:29,649 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:29,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:29,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:29,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-28 08:41:29,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:29,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:29,650 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 08:41:29,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:29,662 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 08:41:29,665 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 08:41:29,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:29,709 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:29,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,716 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:41:29,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:29,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:29,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 08:41:29,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,751 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:29,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:41:29,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:29,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:29,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:29,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:29,914 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:29,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 08:41:29,917 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:29,917 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:29,917 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:29,917 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:29,917 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:29,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,917 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:29,917 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:29,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-28 08:41:29,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:29,918 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:29,919 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 08:41:29,928 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 08:41:29,936 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 08:41:29,939 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 08:41:29,998 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:29,998 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:29,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:29,999 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:41:30,001 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 08:41:30,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:30,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:30,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:30,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:30,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:30,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:30,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:30,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:30,040 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:30,040 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:30,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,041 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:41:30,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:30,044 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:30,044 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:30,044 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 08:41:30,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:30,070 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:30,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,163 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 08:41:30,164 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:30,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,200 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 112 states and 173 transitions. Complement of second has 7 states. [2021-10-28 08:41:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 08:41:30,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 08:41:30,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:30,202 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:30,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,315 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 08:41:30,316 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:30,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,366 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 107 states and 160 transitions. Complement of second has 7 states. [2021-10-28 08:41:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 08:41:30,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 08:41:30,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:30,369 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:30,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:30,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:30,470 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 08:41:30,470 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 3 loop predicates [2021-10-28 08:41:30,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,496 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 128 states and 203 transitions. Complement of second has 8 states. [2021-10-28 08:41:30,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 08:41:30,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 08:41:30,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:30,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 08:41:30,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:30,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 08:41:30,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:30,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 203 transitions. [2021-10-28 08:41:30,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2021-10-28 08:41:30,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 97 states and 147 transitions. [2021-10-28 08:41:30,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-28 08:41:30,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-28 08:41:30,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 147 transitions. [2021-10-28 08:41:30,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:30,505 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 147 transitions. [2021-10-28 08:41:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 147 transitions. [2021-10-28 08:41:30,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2021-10-28 08:41:30,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 65 states have internal predecessors, (100), 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 08:41:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2021-10-28 08:41:30,512 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-28 08:41:30,512 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-28 08:41:30,512 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 08:41:30,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 100 transitions. [2021-10-28 08:41:30,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 08:41:30,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:30,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:30,514 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 08:41:30,514 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:30,515 INFO L791 eck$LassoCheckResult]: Stem: 1256#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1257#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1281#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1267#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 1268#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1283#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1262#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-10-28 08:41:30,515 INFO L793 eck$LassoCheckResult]: Loop: 1263#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1265#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1254#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1255#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1266#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1258#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1259#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1316#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-10-28 08:41:30,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 1 times [2021-10-28 08:41:30,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:30,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511317059] [2021-10-28 08:41:30,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:30,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,524 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,528 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 1 times [2021-10-28 08:41:30,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:30,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31211042] [2021-10-28 08:41:30,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:30,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,541 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash -725918680, now seen corresponding path program 1 times [2021-10-28 08:41:30,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:30,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996596450] [2021-10-28 08:41:30,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:30,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,575 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:30,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:30,661 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:30,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:30,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:30,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:30,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:30,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:30,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:30,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-28 08:41:30,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:30,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:30,664 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 08:41:30,669 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 08:41:30,671 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 08:41:30,674 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 08:41:30,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:30,748 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:30,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,749 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:30,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:30,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 08:41:30,772 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:30,772 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:30,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:30,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,816 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:30,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:30,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:41:30,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:30,856 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:30,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 08:41:30,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,890 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 08:41:30,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:30,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:30,905 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:30,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:30,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 08:41:30,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,928 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:41:30,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:30,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:30,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:30,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:30,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:30,996 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:30,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:30,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:31,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 08:41:31,181 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:31,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,184 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:31,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:31,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:31,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:31,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:31,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:31,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:31,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-28 08:41:31,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:31,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:31,186 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 08:41:31,188 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 08:41:31,190 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 08:41:31,192 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 08:41:31,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:31,247 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:31,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,256 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 08:41:31,257 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 08:41:31,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:31,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:31,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:31,264 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:31,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:31,265 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:31,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:31,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:31,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,286 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 08:41:31,312 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 08:41:31,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:31,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:31,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:31,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:31,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:31,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:31,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:31,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,370 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 08:41:31,372 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 08:41:31,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:31,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:31,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:31,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:31,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:31,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:31,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:31,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,422 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 08:41:31,424 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 08:41:31,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:31,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:31,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:31,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:31,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:31,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:31,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:31,448 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:31,451 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:31,451 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:31,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,459 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,461 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:31,461 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:31,462 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:31,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:31,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 08:41:31,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,498 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:31,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:31,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:31,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:41:31,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:31,629 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-28 08:41:31,631 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 08:41:31,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:31,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 246 states and 366 transitions. Complement of second has 13 states. [2021-10-28 08:41:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 08:41:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 08:41:31,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 08:41:31,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:31,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 08:41:31,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:31,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-28 08:41:31,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:31,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 366 transitions. [2021-10-28 08:41:31,740 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-28 08:41:31,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 208 states and 314 transitions. [2021-10-28 08:41:31,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-28 08:41:31,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-28 08:41:31,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 314 transitions. [2021-10-28 08:41:31,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:31,745 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 314 transitions. [2021-10-28 08:41:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 314 transitions. [2021-10-28 08:41:31,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-10-28 08:41:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 1.5265957446808511) internal successors, (287), 187 states have internal predecessors, (287), 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 08:41:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2021-10-28 08:41:31,761 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-28 08:41:31,761 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-28 08:41:31,761 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 08:41:31,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 287 transitions. [2021-10-28 08:41:31,763 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-28 08:41:31,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:31,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:31,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:31,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:31,764 INFO L791 eck$LassoCheckResult]: Stem: 1650#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1651#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1699#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1697#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 1688#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1684#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1685#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1698#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1678#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1673#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-10-28 08:41:31,765 INFO L793 eck$LassoCheckResult]: Loop: 1773#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1739#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1740#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1719#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1721#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1774#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1702#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1703#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-10-28 08:41:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:31,765 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 3 times [2021-10-28 08:41:31,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:31,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272658494] [2021-10-28 08:41:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:31,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,772 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:31,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:31,782 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 2 times [2021-10-28 08:41:31,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:31,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428600554] [2021-10-28 08:41:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:31,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,789 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -742368616, now seen corresponding path program 2 times [2021-10-28 08:41:31,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:31,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809144130] [2021-10-28 08:41:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:31,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,814 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:31,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:31,902 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:31,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:31,903 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:31,903 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:31,903 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:31,903 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,903 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:31,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:31,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-28 08:41:31,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:31,904 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:31,905 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 08:41:31,910 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 08:41:31,923 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 08:41:31,926 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 08:41:31,983 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:31,983 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:31,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:31,988 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:31,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:31,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:32,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 08:41:32,023 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:32,024 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:32,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:32,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,064 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:32,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:32,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 08:41:32,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 08:41:32,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,117 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 08:41:32,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:32,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:32,332 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:32,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 08:41:32,335 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:32,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:32,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:32,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:32,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:32,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:32,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:32,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-28 08:41:32,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:32,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:32,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:32,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:32,359 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 08:41:32,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:32,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:32,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:32,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,413 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 08:41:32,414 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 08:41:32,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:32,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:32,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:32,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:32,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:32,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:32,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:32,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 08:41:32,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,470 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 08:41:32,471 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 08:41:32,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:32,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:32,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:32,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:32,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:32,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:32,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:32,483 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:32,486 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:32,486 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:32,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,487 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 08:41:32,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:32,489 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:32,489 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:32,489 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:32,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 08:41:32,510 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:32,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:32,634 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-28 08:41:32,634 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:32,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 330 states and 503 transitions. Complement of second has 13 states. [2021-10-28 08:41:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 08:41:32,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 08:41:32,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:32,718 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:32,839 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-28 08:41:32,839 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:32,916 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 326 states and 483 transitions. Complement of second has 15 states. [2021-10-28 08:41:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2021-10-28 08:41:32,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 08:41:32,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:32,918 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:33,027 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 4 loop predicates [2021-10-28 08:41:33,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:33,113 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 525 states and 786 transitions. Complement of second has 23 states. [2021-10-28 08:41:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2021-10-28 08:41:33,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 08:41:33,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:33,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 19 letters. Loop has 8 letters. [2021-10-28 08:41:33,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:33,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 16 letters. [2021-10-28 08:41:33,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:33,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 786 transitions. [2021-10-28 08:41:33,122 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 86 [2021-10-28 08:41:33,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 342 states and 512 transitions. [2021-10-28 08:41:33,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-28 08:41:33,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-10-28 08:41:33,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 512 transitions. [2021-10-28 08:41:33,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:33,128 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 512 transitions. [2021-10-28 08:41:33,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 512 transitions. [2021-10-28 08:41:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 205. [2021-10-28 08:41:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.5463414634146342) internal successors, (317), 204 states have internal predecessors, (317), 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 08:41:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2021-10-28 08:41:33,143 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-28 08:41:33,143 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-28 08:41:33,143 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 08:41:33,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 317 transitions. [2021-10-28 08:41:33,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-10-28 08:41:33,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:33,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:33,146 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 08:41:33,146 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:33,147 INFO L791 eck$LassoCheckResult]: Stem: 3284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3285#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3327#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3328#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 3340#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3338#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-10-28 08:41:33,147 INFO L793 eck$LassoCheckResult]: Loop: 3292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 3423#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 3424#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3443#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3418#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 3442#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3441#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3417#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-10-28 08:41:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 2 times [2021-10-28 08:41:33,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:33,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617010856] [2021-10-28 08:41:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:33,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1729619210, now seen corresponding path program 1 times [2021-10-28 08:41:33,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:33,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822992302] [2021-10-28 08:41:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:33,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,178 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:33,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1535265306, now seen corresponding path program 1 times [2021-10-28 08:41:33,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:33,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563131562] [2021-10-28 08:41:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:33,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,190 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:33,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:33,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,278 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:33,278 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:33,278 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:33,278 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:33,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:33,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:33,279 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:33,279 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-28 08:41:33,279 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:33,279 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:33,280 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 08:41:33,282 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 08:41:33,284 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 08:41:33,293 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 08:41:33,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:33,352 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:33,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,367 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:33,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:33,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 08:41:33,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:33,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:33,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,426 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:33,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:33,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 08:41:33,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:33,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:33,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,471 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 08:41:33,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:33,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:33,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,530 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 08:41:33,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:33,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:33,630 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:33,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,633 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:33,633 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:33,633 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:33,633 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:33,633 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:33,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:33,634 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:33,634 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-28 08:41:33,634 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:33,634 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:33,635 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 08:41:33,639 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 08:41:33,641 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 08:41:33,650 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 08:41:33,714 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:33,714 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:33,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,716 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 08:41:33,717 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 08:41:33,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:33,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:33,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:33,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:33,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:33,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:33,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:33,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,757 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 08:41:33,758 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 08:41:33,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:33,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:33,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:33,769 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:33,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:33,770 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:33,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:33,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:33,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:33,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,837 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,844 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 08:41:33,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:33,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:33,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:33,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:33,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:33,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:33,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:33,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 08:41:33,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:33,876 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:33,877 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:33,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:33,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:33,878 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:33,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:33,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:33,880 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:33,880 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:33,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 08:41:33,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 08:41:33,906 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:33,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:33,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:33,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:41:33,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:34,025 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-28 08:41:34,025 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 08:41:34,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 490 states and 759 transitions. Complement of second has 12 states. [2021-10-28 08:41:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 08:41:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 08:41:34,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 08:41:34,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:34,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 08:41:34,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:34,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-28 08:41:34,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:34,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 759 transitions. [2021-10-28 08:41:34,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 08:41:34,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 285 states and 426 transitions. [2021-10-28 08:41:34,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-28 08:41:34,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 08:41:34,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 426 transitions. [2021-10-28 08:41:34,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:34,116 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 426 transitions. [2021-10-28 08:41:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 426 transitions. [2021-10-28 08:41:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2021-10-28 08:41:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.528497409326425) internal successors, (295), 192 states have internal predecessors, (295), 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 08:41:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2021-10-28 08:41:34,126 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-28 08:41:34,126 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-28 08:41:34,126 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 08:41:34,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 295 transitions. [2021-10-28 08:41:34,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:41:34,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:34,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:34,129 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-10-28 08:41:34,129 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 08:41:34,129 INFO L791 eck$LassoCheckResult]: Stem: 4060#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4061#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4084#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4088#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4085#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4086#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4081#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 4082#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 4134#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 4133#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4128#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4130#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4141#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4140#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4137#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-10-28 08:41:34,130 INFO L793 eck$LassoCheckResult]: Loop: 4067#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4062#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4063#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4066#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-10-28 08:41:34,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash -725859107, now seen corresponding path program 1 times [2021-10-28 08:41:34,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:34,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337564088] [2021-10-28 08:41:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:34,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,138 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:34,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1479302, now seen corresponding path program 3 times [2021-10-28 08:41:34,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:34,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451212004] [2021-10-28 08:41:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:34,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,150 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:34,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash -517142174, now seen corresponding path program 2 times [2021-10-28 08:41:34,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:34,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136833921] [2021-10-28 08:41:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:34,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,162 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:34,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:34,207 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:34,207 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:34,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:34,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:34,208 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:34,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:34,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:34,208 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-28 08:41:34,208 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:34,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:34,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:34,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:34,214 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 08:41:34,224 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 08:41:34,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:34,272 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:34,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,273 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:34,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:34,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 08:41:34,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:34,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:34,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:34,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,342 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:34,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:34,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 08:41:34,368 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:34,368 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:41:34,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:34,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,407 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:34,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:34,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 08:41:34,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:34,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,454 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 08:41:34,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:34,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:34,571 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:34,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 08:41:34,574 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:34,574 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:34,574 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:34,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:34,574 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:34,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:34,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:34,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-28 08:41:34,575 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:34,575 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:34,575 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 08:41:34,578 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 08:41:34,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:34,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:34,653 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:34,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:34,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,654 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 08:41:34,655 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 08:41:34,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:34,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:34,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:34,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:34,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:34,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:34,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:34,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-28 08:41:34,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,690 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 08:41:34,692 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 08:41:34,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:34,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:34,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:34,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:34,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:41:34,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:41:34,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:34,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-28 08:41:34,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,724 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 08:41:34,725 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 08:41:34,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:34,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:34,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:34,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:34,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:34,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:34,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:34,740 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:34,755 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:41:34,755 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:41:34,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:34,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:34,756 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:34,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:34,757 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:34,757 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:34,757 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 08:41:34,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 08:41:34,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-28 08:41:34,777 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:34,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:34,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:34,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:34,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:34,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:34,919 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 08:41:34,920 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:34,920 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:34,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:34,946 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 302 states and 452 transitions. Complement of second has 7 states. [2021-10-28 08:41:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 08:41:34,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 08:41:34,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:34,947 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:34,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:34,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:34,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:35,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:35,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:35,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:35,038 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 08:41:35,039 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 08:41:35,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:35,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 313 states and 443 transitions. Complement of second has 7 states. [2021-10-28 08:41:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:35,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 08:41:35,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 08:41:35,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:35,066 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:35,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:35,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:35,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:35,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:35,157 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 08:41:35,157 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 3 loop predicates [2021-10-28 08:41:35,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:35,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 423 states and 703 transitions. Complement of second has 8 states. [2021-10-28 08:41:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:41:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 08:41:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 08:41:35,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 08:41:35,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:35,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 4 letters. [2021-10-28 08:41:35,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:35,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 08:41:35,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:35,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 703 transitions. [2021-10-28 08:41:35,192 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:41:35,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 0 states and 0 transitions. [2021-10-28 08:41:35,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:41:35,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:41:35,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:41:35,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:41:35,193 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:35,194 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:35,194 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:41:35,194 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 08:41:35,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:41:35,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:41:35,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:41:35,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:41:35 BoogieIcfgContainer [2021-10-28 08:41:35,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:41:35,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:41:35,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:41:35,204 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:41:35,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:24" (3/4) ... [2021-10-28 08:41:35,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:41:35,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:41:35,210 INFO L168 Benchmark]: Toolchain (without parser) took 11705.21 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 49.7 MB in the beginning and 88.0 MB in the end (delta: -38.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,210 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:35,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.28 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 49.5 MB in the beginning and 96.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 123.7 MB. Free memory was 96.6 MB in the beginning and 95.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,212 INFO L168 Benchmark]: Boogie Preprocessor took 22.97 ms. Allocated memory is still 123.7 MB. Free memory was 95.3 MB in the beginning and 94.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:35,212 INFO L168 Benchmark]: RCFGBuilder took 291.44 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 86.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,213 INFO L168 Benchmark]: BuchiAutomizer took 11043.41 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 86.2 MB in the beginning and 89.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,213 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 148.9 MB. Free memory was 89.0 MB in the beginning and 88.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:35,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.28 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 49.5 MB in the beginning and 96.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 123.7 MB. Free memory was 96.6 MB in the beginning and 95.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.97 ms. Allocated memory is still 123.7 MB. Free memory was 95.3 MB in the beginning and 94.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 291.44 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 86.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11043.41 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 86.2 MB in the beginning and 89.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.08 ms. Allocated memory is still 148.9 MB. Free memory was 89.0 MB in the beginning and 88.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.9s. Construction of modules took 0.3s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 316 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 205 states and ocurred in iteration 8. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 192 SDtfs, 248 SDslu, 117 SDs, 0 SdLazy, 319 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax151 hnf99 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf93 smp100 dnf100 smp100 tf107 neg100 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 124ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:41:35,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ce3a9-3386-4610-9cb8-5ca0346b4c3b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...