./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_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD --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 23:59:11,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:11,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:11,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:11,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:11,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:11,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:11,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:11,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:11,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:11,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:11,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:11,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:11,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:11,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:11,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:11,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:11,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:11,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:11,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:11,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:11,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:11,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:11,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:11,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:11,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:11,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:11,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:11,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:11,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:11,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:11,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:11,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:11,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:11,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:11,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:11,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:11,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:11,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:11,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:11,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:11,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:59:11,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:11,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:11,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:11,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:11,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:11,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:11,200 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:11,201 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:59:11,201 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:59:11,201 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:59:11,202 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:59:11,202 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:59:11,202 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:59:11,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:11,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:59:11,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:11,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:11,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:59:11,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:59:11,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:59:11,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:59:11,205 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:59:11,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:11,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:59:11,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:11,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:11,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:11,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:59:11,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:11,209 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:59:11,209 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_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-10-28 23:59:11,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:11,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:11,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:11,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:11,681 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:11,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-28 23:59:11,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/data/4c3b55b1d/4b2abfb319e94fe79a412e7d232a9a11/FLAGd3445223e [2021-10-28 23:59:12,388 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:12,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-28 23:59:12,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/data/4c3b55b1d/4b2abfb319e94fe79a412e7d232a9a11/FLAGd3445223e [2021-10-28 23:59:12,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/data/4c3b55b1d/4b2abfb319e94fe79a412e7d232a9a11 [2021-10-28 23:59:12,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:12,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:59:12,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:12,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:12,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:12,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:12" (1/1) ... [2021-10-28 23:59:12,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537b8102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:12, skipping insertion in model container [2021-10-28 23:59:12,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:12" (1/1) ... [2021-10-28 23:59:12,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:12,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:12,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:12,975 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:12,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:13,029 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:13,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13 WrapperNode [2021-10-28 23:59:13,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:13,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:13,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:59:13,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:59:13,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:13,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:13,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:13,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:13,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:13,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:13,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:13,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:13,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (1/1) ... [2021-10-28 23:59:13,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:13,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:13,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:13,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:13,424 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:59:13,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:13 BoogieIcfgContainer [2021-10-28 23:59:13,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:13,427 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:59:13,428 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:59:13,432 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:59:13,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:13,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:59:12" (1/3) ... [2021-10-28 23:59:13,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f9313bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:59:13, skipping insertion in model container [2021-10-28 23:59:13,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:13,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:13" (2/3) ... [2021-10-28 23:59:13,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f9313bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:59:13, skipping insertion in model container [2021-10-28 23:59:13,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:13,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:13" (3/3) ... [2021-10-28 23:59:13,437 INFO L389 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-28 23:59:13,494 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:59:13,495 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:59:13,495 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:59:13,495 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:59:13,495 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:59:13,495 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:59:13,495 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:59:13,496 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:59:13,513 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 23:59:13,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:13,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:13,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:13,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:59:13,543 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:13,543 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:59:13,544 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 23:59:13,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:13,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:13,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:13,547 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:59:13,547 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:13,555 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 23:59:13,555 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 23:59:13,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:59:13,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:13,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360191091] [2021-10-28 23:59:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:13,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,735 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1234440, now seen corresponding path program 1 times [2021-10-28 23:59:13,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:13,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395962487] [2021-10-28 23:59:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:13,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,779 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash 29863591, now seen corresponding path program 1 times [2021-10-28 23:59:13,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:13,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983233052] [2021-10-28 23:59:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:13,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,805 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:13,817 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:13,959 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:13,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:13,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:13,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:13,960 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:13,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:13,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:13,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:13,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-28 23:59:13,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:13,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:13,981 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 23:59:13,991 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 23:59:13,996 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 23:59:14,001 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 23:59:14,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:14,147 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:14,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:59:14,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:14,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:14,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:14,187 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 23:59:14,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 23:59:14,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:59:14,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:14,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:14,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:14,263 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 23:59:14,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:59:14,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:14,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:14,340 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:14,340 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 23:59:14,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,370 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:14,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:14,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:59:14,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:59:14,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:14,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:14,579 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:14,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,589 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:14,589 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:14,589 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:14,589 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:14,589 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:14,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:14,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:14,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-28 23:59:14,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:14,590 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:14,593 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 23:59:14,598 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 23:59:14,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:14,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:14,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:14,692 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:14,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:59:14,698 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 23:59:14,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:14,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:14,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:14,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:14,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:14,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:14,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:14,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,810 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,820 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 23:59:14,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:14,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:14,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:14,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:14,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:14,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:14,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:59:14,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:14,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:14,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:14,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:14,911 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:14,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:59:14,920 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 23:59:14,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:14,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:14,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:14,935 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:59:14,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:14,937 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:14,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:14,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:15,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:15,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:15,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:15,024 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 23:59:15,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:15,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:15,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:15,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:15,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:15,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:15,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:15,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:59:15,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:15,088 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:15,088 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:15,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:15,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:15,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:59:15,102 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:15,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:15,109 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:15,109 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 23:59:15,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:15,142 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:15,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:15,196 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:59:15,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:15,344 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 23:59:15,374 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 23:59:15,377 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 23:59:15,459 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 23:59:15,460 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 23:59:15,462 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 23:59:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-28 23:59:15,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 23:59:15,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:15,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:59:15,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:15,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-28 23:59:15,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:15,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2021-10-28 23:59:15,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:59:15,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 30 transitions. [2021-10-28 23:59:15,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 23:59:15,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 23:59:15,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-28 23:59:15,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:15,482 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 23:59:15,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-28 23:59:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-28 23:59:15,515 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 23:59:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-10-28 23:59:15,517 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 23:59:15,518 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 23:59:15,518 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:59:15,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-10-28 23:59:15,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:59:15,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:15,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:15,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:59:15,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:15,521 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 23:59:15,521 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 23:59:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:15,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 23:59:15,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:15,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987898821] [2021-10-28 23:59:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:15,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:15,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1328732, now seen corresponding path program 1 times [2021-10-28 23:59:15,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:15,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565709245] [2021-10-28 23:59:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:15,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,544 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:15,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:15,556 INFO L85 PathProgramCache]: Analyzing trace with hash 925773253, now seen corresponding path program 1 times [2021-10-28 23:59:15,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:15,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145016197] [2021-10-28 23:59:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:15,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,565 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:15,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:15,612 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:15,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:15,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:15,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:15,613 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:15,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:15,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:15,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-28 23:59:15,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:15,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:15,616 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 23:59:15,619 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 23:59:15,630 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 23:59:15,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:15,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:15,696 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:15,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:15,698 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:15,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:15,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:15,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:59:15,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:15,742 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 23:59:15,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:15,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:15,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:15,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:59:15,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:15,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:15,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:15,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-28 23:59:15,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:15,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:15,931 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:15,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:15,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:15,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:59:16,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:16,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:16,152 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:16,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:16,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:16,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:16,152 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:16,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:16,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:16,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-28 23:59:16,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:16,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:16,155 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 23:59:16,163 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 23:59:16,179 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 23:59:16,185 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 23:59:16,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:16,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:16,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:16,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:16,303 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 23:59:16,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:59:16,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:16,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:16,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:16,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:16,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:16,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:16,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:16,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:16,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:16,388 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:16,396 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 23:59:16,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:16,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:16,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:16,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:16,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:16,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:16,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:16,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:59:16,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:16,438 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:16,438 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:16,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:16,443 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:16,452 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:16,452 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:16,452 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:16,453 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 23:59:16,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:59:16,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:16,500 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:16,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:16,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:16,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:16,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:16,595 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 23:59:16,597 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 23:59:16,599 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 23:59:16,649 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 23:59:16,649 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 23:59:16,650 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 23:59:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 23:59:16,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:59:16,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:16,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 23:59:16,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:16,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-28 23:59:16,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:16,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2021-10-28 23:59:16,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:16,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 30 transitions. [2021-10-28 23:59:16,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 23:59:16,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:59:16,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-28 23:59:16,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:16,666 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 23:59:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-28 23:59:16,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 23:59:16,671 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 23:59:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-10-28 23:59:16,672 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-28 23:59:16,672 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-28 23:59:16,672 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:59:16,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-10-28 23:59:16,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:16,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:16,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:16,677 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:59:16,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:16,677 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 23:59:16,678 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 23:59:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:16,679 INFO L85 PathProgramCache]: Analyzing trace with hash 31084, now seen corresponding path program 1 times [2021-10-28 23:59:16,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:16,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531321682] [2021-10-28 23:59:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:16,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,702 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,715 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:16,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 1 times [2021-10-28 23:59:16,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:16,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936895054] [2021-10-28 23:59:16,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:16,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,745 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1357271332, now seen corresponding path program 1 times [2021-10-28 23:59:16,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:16,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672715358] [2021-10-28 23:59:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:16,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:16,785 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:16,844 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:16,844 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:16,844 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:16,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:16,845 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:16,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,845 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:16,845 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:16,845 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-28 23:59:16,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:16,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:16,848 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 23:59:16,851 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 23:59:16,855 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 23:59:16,867 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 23:59:16,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:16,935 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:16,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:16,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:16,940 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:16,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:16,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:16,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:59:16,972 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:16,972 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 23:59:17,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:17,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,023 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:17,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:59:17,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:17,051 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 23:59:17,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:17,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,099 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:17,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:17,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:59:17,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:17,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,181 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:17,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:17,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:59:17,334 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:17,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-10-28 23:59:17,342 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:17,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:17,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:17,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:17,343 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:17,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:17,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:17,343 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-28 23:59:17,343 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:17,343 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:17,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:17,352 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 23:59:17,356 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 23:59:17,369 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 23:59:17,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:17,452 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:17,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,453 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:59:17,467 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 23:59:17,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:17,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:17,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:17,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:17,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:17,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:17,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:17,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:17,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 23:59:17,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,521 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:59:17,523 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 23:59:17,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:17,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:17,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:17,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:17,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:17,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:17,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:17,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:17,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,573 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:59:17,575 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 23:59:17,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:17,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:17,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:17,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:17,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:17,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:17,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:17,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:17,618 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:17,618 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:17,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:17,623 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:17,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:17,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:17,628 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:17,628 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 23:59:17,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:59:17,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:17,664 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:17,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:17,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:17,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:17,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:17,766 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 23:59:17,767 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 23:59:17,768 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 23:59:17,834 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 23:59:17,834 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 23:59:17,834 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 23:59:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 23:59:17,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 23:59:17,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:17,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 23:59:17,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:17,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-28 23:59:17,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:17,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2021-10-28 23:59:17,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:17,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 38 transitions. [2021-10-28 23:59:17,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 23:59:17,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 23:59:17,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 38 transitions. [2021-10-28 23:59:17,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:17,844 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 38 transitions. [2021-10-28 23:59:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 38 transitions. [2021-10-28 23:59:17,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-10-28 23:59:17,846 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 23:59:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2021-10-28 23:59:17,847 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-28 23:59:17,847 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-28 23:59:17,847 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:59:17,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 35 transitions. [2021-10-28 23:59:17,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:17,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:17,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:17,849 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 23:59:17,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:17,849 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 23:59:17,850 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 23:59:17,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:17,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1357211759, now seen corresponding path program 1 times [2021-10-28 23:59:17,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:17,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984742590] [2021-10-28 23:59:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:17,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,867 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:17,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:17,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1419720, now seen corresponding path program 2 times [2021-10-28 23:59:17,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:17,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483205166] [2021-10-28 23:59:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:17,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,881 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,887 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash -369493672, now seen corresponding path program 1 times [2021-10-28 23:59:17,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:17,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833960091] [2021-10-28 23:59:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:17,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,897 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:17,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:17,951 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:17,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:17,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:17,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:17,951 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:17,952 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:17,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:17,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:17,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-28 23:59:17,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:17,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:17,953 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 23:59:17,957 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 23:59:17,971 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 23:59:17,975 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 23:59:18,053 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:18,053 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:18,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,059 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:18,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:59:18,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:18,123 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 23:59:18,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:18,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 23:59:18,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 23:59:18,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,176 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:59:18,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:18,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:18,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:18,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,221 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:59:18,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:18,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:18,444 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:18,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:59:18,448 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:18,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:18,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:18,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:18,448 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:18,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:18,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:18,448 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-28 23:59:18,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:18,449 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:18,450 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 23:59:18,469 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 23:59:18,480 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 23:59:18,483 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 23:59:18,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:18,538 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:18,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,540 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:59:18,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:18,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:18,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:18,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:18,567 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:59:18,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:18,568 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:18,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:18,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:18,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 23:59:18,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,624 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:59:18,625 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 23:59:18,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:18,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:18,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:18,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:18,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:18,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:18,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:18,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:18,667 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:18,667 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:18,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:18,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,669 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:59:18,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:18,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:18,672 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:18,672 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 23:59:18,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:18,702 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:18,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:18,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:18,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:18,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:59:18,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:18,831 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 23:59:18,832 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 23:59:18,832 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 23:59:18,884 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 23:59:18,885 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 23:59:18,885 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 23:59:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 23:59:18,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 23:59:18,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:18,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 23:59:18,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:18,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 23:59:18,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:18,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-10-28 23:59:18,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:59:18,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 55 states and 80 transitions. [2021-10-28 23:59:18,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 23:59:18,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-28 23:59:18,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 80 transitions. [2021-10-28 23:59:18,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:18,911 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-28 23:59:18,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 80 transitions. [2021-10-28 23:59:18,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2021-10-28 23:59:18,923 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 23:59:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2021-10-28 23:59:18,926 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-28 23:59:18,926 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-28 23:59:18,926 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:59:18,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 63 transitions. [2021-10-28 23:59:18,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:59:18,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:18,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:18,931 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:18,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:18,933 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 23:59:18,933 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 23:59:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash 876108449, now seen corresponding path program 1 times [2021-10-28 23:59:18,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:18,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364770645] [2021-10-28 23:59:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:18,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:18,951 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:18,968 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:18,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1529372, now seen corresponding path program 2 times [2021-10-28 23:59:18,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:18,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837846840] [2021-10-28 23:59:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:18,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:18,986 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:18,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1432445116, now seen corresponding path program 1 times [2021-10-28 23:59:18,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:18,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562998954] [2021-10-28 23:59:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:18,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,007 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,017 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:19,059 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:19,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:19,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:19,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:19,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:19,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:19,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:19,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-28 23:59:19,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:19,061 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:19,062 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 23:59:19,072 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 23:59:19,076 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 23:59:19,079 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 23:59:19,140 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:19,140 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:19,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,141 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:19,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:19,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:59:19,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,219 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:19,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:59:19,311 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:19,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,319 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:19,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:19,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:19,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:19,320 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:19,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:19,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:19,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-28 23:59:19,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:19,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:19,321 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 23:59:19,327 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 23:59:19,337 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 23:59:19,341 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 23:59:19,405 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:19,405 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:19,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,407 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:59:19,415 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 23:59:19,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:19,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:19,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:19,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:19,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:19,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:19,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:19,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,463 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:59:19,465 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 23:59:19,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:19,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:19,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:19,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:19,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:19,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:19,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:19,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:19,483 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:19,483 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:19,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,485 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,487 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:19,487 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:19,487 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:19,487 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 23:59:19,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:59:19,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,531 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:19,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:19,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:19,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:19,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:19,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:19,631 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 23:59:19,632 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 23:59:19,633 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 23:59:19,655 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 23:59:19,656 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 23:59:19,656 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 23:59:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 23:59:19,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 23:59:19,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:19,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-28 23:59:19,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:19,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-28 23:59:19,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:19,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 158 transitions. [2021-10-28 23:59:19,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 23:59:19,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 90 states and 129 transitions. [2021-10-28 23:59:19,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 23:59:19,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:59:19,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2021-10-28 23:59:19,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:19,664 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-10-28 23:59:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2021-10-28 23:59:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2021-10-28 23:59:19,671 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 23:59:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-28 23:59:19,673 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-28 23:59:19,673 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-28 23:59:19,673 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:59:19,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 111 transitions. [2021-10-28 23:59:19,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 23:59:19,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:19,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:19,675 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:19,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:19,676 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 23:59:19,676 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 23:59:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 2 times [2021-10-28 23:59:19,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:19,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816877123] [2021-10-28 23:59:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:19,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,686 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:19,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 2 times [2021-10-28 23:59:19,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:19,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591411464] [2021-10-28 23:59:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:19,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,699 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:19,705 INFO L85 PathProgramCache]: Analyzing trace with hash -4707247, now seen corresponding path program 1 times [2021-10-28 23:59:19,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:19,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416116504] [2021-10-28 23:59:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:19,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,714 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:19,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:19,766 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:19,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:19,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:19,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:19,767 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:19,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,767 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:19,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:19,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-28 23:59:19,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:19,768 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:19,769 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 23:59:19,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:19,787 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 23:59:19,791 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 23:59:19,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:19,875 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:19,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,877 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:19,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:19,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:59:19,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:19,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 23:59:19,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:19,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:19,955 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:19,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:59:19,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:19,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:20,085 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:20,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 23:59:20,088 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:20,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:20,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:20,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:20,088 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:20,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:20,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:20,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:20,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-28 23:59:20,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:20,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:20,090 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 23:59:20,102 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 23:59:20,106 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 23:59:20,110 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 23:59:20,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:20,167 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:20,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:20,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:20,168 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:20,182 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 23:59:20,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:59:20,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:20,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:20,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:20,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:20,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:20,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:20,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:20,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:20,202 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:20,202 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:20,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:20,211 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:20,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:20,214 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:20,214 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:20,214 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 23:59:20,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:59:20,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 23:59:20,243 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:20,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,386 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 23:59:20,387 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 23:59:20,387 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 23:59:20,423 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 23:59:20,427 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 23:59:20,428 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 23:59:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 23:59:20,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 23:59:20,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:20,430 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,547 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 23:59:20,548 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 23:59:20,548 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 23:59:20,591 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 23:59:20,591 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 23:59:20,592 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 23:59:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 23:59:20,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 23:59:20,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:20,592 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:20,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:20,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:20,698 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 23:59:20,698 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 23:59:20,699 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 23:59:20,737 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 23:59:20,739 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 23:59:20,740 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 23:59:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 23:59:20,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 23:59:20,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:20,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 23:59:20,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:20,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 23:59:20,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:20,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 203 transitions. [2021-10-28 23:59:20,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2021-10-28 23:59:20,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 97 states and 147 transitions. [2021-10-28 23:59:20,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-28 23:59:20,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-28 23:59:20,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 147 transitions. [2021-10-28 23:59:20,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:20,753 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 147 transitions. [2021-10-28 23:59:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 147 transitions. [2021-10-28 23:59:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2021-10-28 23:59:20,761 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 23:59:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2021-10-28 23:59:20,762 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-28 23:59:20,762 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-28 23:59:20,762 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:59:20,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 100 transitions. [2021-10-28 23:59:20,762 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:59:20,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:20,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:20,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 23:59:20,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:20,764 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 23:59:20,764 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 23:59:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 1 times [2021-10-28 23:59:20,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:20,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145220787] [2021-10-28 23:59:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:20,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,780 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 1 times [2021-10-28 23:59:20,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:20,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141942404] [2021-10-28 23:59:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:20,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,804 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,820 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:20,821 INFO L85 PathProgramCache]: Analyzing trace with hash -725918680, now seen corresponding path program 1 times [2021-10-28 23:59:20,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:20,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314293563] [2021-10-28 23:59:20,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:20,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,829 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:20,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:20,929 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:20,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:20,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:20,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:20,930 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:20,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:20,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:20,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:20,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-28 23:59:20,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:20,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:20,933 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 23:59:20,936 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 23:59:20,939 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 23:59:20,942 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 23:59:21,014 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:21,014 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:21,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,016 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:21,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:59:21,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:21,040 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 23:59:21,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,091 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:21,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:21,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:59:21,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:21,119 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 23:59:21,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 23:59:21,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,154 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:59:21,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:21,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:21,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:21,178 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 23:59:21,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,222 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:21,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:21,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:59:21,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 23:59:21,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,294 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:59:21,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:21,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:21,502 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:21,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 23:59:21,508 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:21,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:21,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:21,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:21,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:21,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:21,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:21,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-28 23:59:21,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:21,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:21,510 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 23:59:21,514 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 23:59:21,517 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 23:59:21,520 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 23:59:21,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:21,632 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:21,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,651 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,663 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 23:59:21,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:59:21,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:21,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:21,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:21,675 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:59:21,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:21,676 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:21,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:21,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:21,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 23:59:21,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,707 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:59:21,710 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 23:59:21,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:21,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:21,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:21,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:21,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:21,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:21,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:21,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,784 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,796 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 23:59:21,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:21,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:21,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:21,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:21,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:21,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:21,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:59:21,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:21,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,870 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,872 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 23:59:21,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:21,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:21,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:21,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:21,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:21,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:21,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:21,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:59:21,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:21,906 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:21,906 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:21,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:21,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:21,908 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:21,910 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:21,910 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:21,910 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:21,910 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 23:59:21,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:59:21,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:21,953 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:21,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:21,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:22,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:59:22,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:22,093 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 23:59:22,095 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 23:59:22,097 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 23:59:22,210 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 23:59:22,211 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 23:59:22,211 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 23:59:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 23:59:22,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 23:59:22,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:22,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 23:59:22,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:22,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-28 23:59:22,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:22,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 366 transitions. [2021-10-28 23:59:22,223 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-28 23:59:22,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 208 states and 314 transitions. [2021-10-28 23:59:22,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-28 23:59:22,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-28 23:59:22,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 314 transitions. [2021-10-28 23:59:22,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:22,233 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 314 transitions. [2021-10-28 23:59:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 314 transitions. [2021-10-28 23:59:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-10-28 23:59:22,260 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 23:59:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2021-10-28 23:59:22,266 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-28 23:59:22,266 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-28 23:59:22,266 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:59:22,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 287 transitions. [2021-10-28 23:59:22,272 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-28 23:59:22,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:22,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:22,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:22,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:22,274 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 23:59:22,275 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 23:59:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 3 times [2021-10-28 23:59:22,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:22,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059183228] [2021-10-28 23:59:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:22,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 2 times [2021-10-28 23:59:22,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:22,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779447743] [2021-10-28 23:59:22,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:22,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,307 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:22,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash -742368616, now seen corresponding path program 2 times [2021-10-28 23:59:22,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:22,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867210751] [2021-10-28 23:59:22,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:22,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,323 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:22,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:22,413 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:22,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:22,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:22,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:22,414 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:22,414 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,414 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:22,414 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:22,414 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-28 23:59:22,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:22,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:22,416 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 23:59:22,418 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 23:59:22,430 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 23:59:22,433 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 23:59:22,498 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:22,498 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:22,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:22,499 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:22,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:22,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:22,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:59:22,532 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:22,533 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 23:59:22,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:22,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:22,578 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:22,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:22,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:22,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:59:22,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:22,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:22,654 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:59:22,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:22,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:22,887 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:22,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:22,891 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:22,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:22,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:22,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:22,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:22,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:22,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:22,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-28 23:59:22,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:22,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:22,893 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 23:59:22,896 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 23:59:22,912 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 23:59:22,915 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 23:59:23,002 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:23,002 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:23,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,005 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,011 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 23:59:23,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:23,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:23,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:23,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:23,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:23,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:23,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:59:23,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:23,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,080 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,087 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 23:59:23,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:23,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:23,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:23,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:23,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:23,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:23,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:23,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:59:23,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:23,129 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:23,129 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:23,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,131 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:23,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:23,133 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:23,133 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 23:59:23,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:59:23,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,177 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,320 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 23:59:23,321 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 23:59:23,321 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 23:59:23,454 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 23:59:23,455 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 23:59:23,455 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 23:59:23,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 23:59:23,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 23:59:23,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:23,457 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,606 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 23:59:23,608 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 23:59:23,608 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 23:59:23,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,720 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 23:59:23,721 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 23:59:23,721 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 23:59:23,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2021-10-28 23:59:23,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 23:59:23,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:23,721 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:23,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:59:23,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:23,858 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 23:59:23,859 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 23:59:23,860 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 23:59:23,972 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 23:59:23,973 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 23:59:23,974 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 23:59:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2021-10-28 23:59:23,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-28 23:59:23,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:23,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 19 letters. Loop has 8 letters. [2021-10-28 23:59:23,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:23,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 16 letters. [2021-10-28 23:59:23,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:23,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 786 transitions. [2021-10-28 23:59:23,984 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 86 [2021-10-28 23:59:23,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 342 states and 512 transitions. [2021-10-28 23:59:23,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-28 23:59:23,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-10-28 23:59:23,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 512 transitions. [2021-10-28 23:59:23,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:23,990 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 512 transitions. [2021-10-28 23:59:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 512 transitions. [2021-10-28 23:59:24,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 205. [2021-10-28 23:59:24,003 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 23:59:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2021-10-28 23:59:24,005 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-28 23:59:24,005 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-28 23:59:24,005 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:59:24,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 317 transitions. [2021-10-28 23:59:24,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-10-28 23:59:24,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:24,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:24,008 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-28 23:59:24,008 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:24,009 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 23:59:24,009 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 23:59:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 2 times [2021-10-28 23:59:24,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058154904] [2021-10-28 23:59:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,015 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1729619210, now seen corresponding path program 1 times [2021-10-28 23:59:24,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051230322] [2021-10-28 23:59:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1535265306, now seen corresponding path program 1 times [2021-10-28 23:59:24,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893952052] [2021-10-28 23:59:24,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,040 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,145 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:24,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:24,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:24,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:24,146 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:24,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:24,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:24,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-28 23:59:24,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:24,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:24,147 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 23:59:24,151 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 23:59:24,154 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 23:59:24,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:24,234 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:24,235 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:24,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,239 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:24,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:59:24,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:24,264 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 23:59:24,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:59:24,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,296 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:59:24,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:24,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:24,332 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 23:59:24,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,357 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:59:24,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:24,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,395 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:59:24,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:24,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,514 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:24,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:59:24,517 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:24,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:24,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:24,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:24,517 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:24,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:24,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:24,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-28 23:59:24,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:24,518 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:24,519 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 23:59:24,522 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 23:59:24,525 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 23:59:24,537 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 23:59:24,611 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:24,611 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:24,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,612 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,619 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 23:59:24,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:24,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:24,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:24,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:24,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:24,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:24,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:59:24,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:24,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,690 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,695 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 23:59:24,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:24,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:24,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:24,706 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:59:24,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:24,707 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:24,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:24,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:59:24,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:24,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:59:24,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,744 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:59:24,746 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 23:59:24,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:24,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:24,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:24,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:24,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:24,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:24,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:24,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:24,761 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:24,761 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:24,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,762 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:59:24,763 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:24,763 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:24,763 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:24,763 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 23:59:24,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 23:59:24,787 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,905 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 23:59:24,906 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 23:59:24,906 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 23:59:24,988 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 23:59:24,988 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 23:59:24,989 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 23:59:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-28 23:59:24,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 23:59:24,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 23:59:24,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-28 23:59:24,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 759 transitions. [2021-10-28 23:59:24,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 23:59:25,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 285 states and 426 transitions. [2021-10-28 23:59:25,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-28 23:59:25,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 23:59:25,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 426 transitions. [2021-10-28 23:59:25,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:25,002 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 426 transitions. [2021-10-28 23:59:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 426 transitions. [2021-10-28 23:59:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2021-10-28 23:59:25,009 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 23:59:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2021-10-28 23:59:25,011 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-28 23:59:25,011 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-28 23:59:25,011 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:59:25,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 295 transitions. [2021-10-28 23:59:25,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:59:25,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:25,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:25,038 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-10-28 23:59:25,038 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:59:25,038 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 23:59:25,038 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 23:59:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,039 INFO L85 PathProgramCache]: Analyzing trace with hash -725859107, now seen corresponding path program 1 times [2021-10-28 23:59:25,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934555799] [2021-10-28 23:59:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,051 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1479302, now seen corresponding path program 3 times [2021-10-28 23:59:25,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415711773] [2021-10-28 23:59:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,084 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,096 INFO L85 PathProgramCache]: Analyzing trace with hash -517142174, now seen corresponding path program 2 times [2021-10-28 23:59:25,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740621435] [2021-10-28 23:59:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,103 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,111 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,142 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:25,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:25,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:25,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:25,143 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:25,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:25,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:25,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-28 23:59:25,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:25,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:25,145 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 23:59:25,148 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 23:59:25,151 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 23:59:25,161 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 23:59:25,209 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:25,209 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:25,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,210 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:25,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:59:25,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:25,243 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 23:59:25,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,280 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:25,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:59:25,303 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:25,303 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 23:59:25,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,341 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:25,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:59:25,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 23:59:25,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,387 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:59:25,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:25,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,507 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:25,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 23:59:25,510 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:25,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:25,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:25,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:25,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:25,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:25,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:25,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-28 23:59:25,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:25,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:25,511 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 23:59:25,519 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 23:59:25,521 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 23:59:25,529 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 23:59:25,589 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:25,589 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:25,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,591 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:59:25,599 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 23:59:25,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:25,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:25,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:25,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:25,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:25,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:25,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:25,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-28 23:59:25,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,636 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:59:25,638 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 23:59:25,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:25,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:25,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:25,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:25,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:25,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:25,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:25,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,686 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:59:25,687 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 23:59:25,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:25,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:25,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:25,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:25,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:25,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:25,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:25,730 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:25,734 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:59:25,734 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:59:25,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,740 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:25,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:25,742 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:25,742 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 23:59:25,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:59:25,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,783 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:25,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,884 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 23:59:25,884 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 23:59:25,885 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 23:59:25,918 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 23:59:25,919 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 23:59:25,919 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 23:59:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-28 23:59:25,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 23:59:25,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,920 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:25,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:26,015 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 23:59:26,015 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 23:59:26,016 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 23:59:26,045 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 23:59:26,045 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 23:59:26,046 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 23:59:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 23:59:26,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 23:59:26,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:26,049 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:26,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:26,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:26,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:26,163 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 23:59:26,164 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 23:59:26,164 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 23:59:26,193 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 23:59:26,194 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 23:59:26,194 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 23:59:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-28 23:59:26,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 23:59:26,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:26,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 4 letters. [2021-10-28 23:59:26,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:26,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 23:59:26,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:26,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 703 transitions. [2021-10-28 23:59:26,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:59:26,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 0 states and 0 transitions. [2021-10-28 23:59:26,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:59:26,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:59:26,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:59:26,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:59:26,203 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:59:26,203 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:59:26,203 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:59:26,203 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:59:26,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:59:26,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:59:26,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:59:26,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:59:26 BoogieIcfgContainer [2021-10-28 23:59:26,211 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:59:26,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:59:26,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:59:26,212 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:59:26,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:13" (3/4) ... [2021-10-28 23:59:26,217 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:59:26,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:59:26,219 INFO L168 Benchmark]: Toolchain (without parser) took 13435.84 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 57.7 MB in the beginning and 57.9 MB in the end (delta: -169.3 kB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:26,219 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.4 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:26,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.84 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 69.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:26,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.08 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:26,221 INFO L168 Benchmark]: Boogie Preprocessor took 19.57 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 988.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:26,221 INFO L168 Benchmark]: RCFGBuilder took 335.61 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 59.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:26,222 INFO L168 Benchmark]: BuchiAutomizer took 12784.03 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 59.4 MB in the beginning and 57.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:26,222 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 142.6 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:26,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.4 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.84 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 69.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.08 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.57 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 988.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 335.61 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 59.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12784.03 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 59.4 MB in the beginning and 57.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.90 ms. Allocated memory is still 142.6 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 12.7s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 9.2s. Construction of modules took 0.3s. Büchi inclusion checks took 2.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s 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: 70ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:59:26,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c74ed795-0603-4035-afd8-14b13465918c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...