./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be --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-e943c26 [2021-10-21 20:19:04,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:19:04,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:19:04,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:19:04,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:19:04,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:19:04,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:19:04,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:19:04,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:19:04,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:19:04,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:19:04,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:19:04,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:19:04,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:19:04,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:19:04,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:19:04,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:19:04,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:19:04,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:19:04,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:19:04,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:19:04,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:19:04,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:19:04,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:19:04,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:19:04,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:19:04,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:19:04,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:19:04,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:19:04,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:19:04,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:19:04,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:19:04,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:19:04,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:19:04,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:19:04,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:19:04,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:19:04,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:19:04,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:19:04,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:19:04,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:19:04,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:19:04,474 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:19:04,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:19:04,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:19:04,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:19:04,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:19:04,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:19:04,477 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:19:04,477 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:19:04,477 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:19:04,477 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:19:04,478 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:19:04,479 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:19:04,479 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:19:04,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:19:04,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:19:04,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:19:04,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:19:04,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:19:04,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:19:04,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:19:04,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:19:04,481 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:19:04,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:19:04,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:19:04,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:19:04,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:19:04,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:19:04,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:19:04,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:19:04,483 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:19:04,484 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_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-10-21 20:19:04,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:19:04,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:19:04,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:19:04,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:19:04,797 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:19:04,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-21 20:19:04,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/data/2adf2d1b6/f8e0b1eefa1e495a831918e6c6ec9892/FLAG8a05b9c30 [2021-10-21 20:19:05,281 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:19:05,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-10-21 20:19:05,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/data/2adf2d1b6/f8e0b1eefa1e495a831918e6c6ec9892/FLAG8a05b9c30 [2021-10-21 20:19:05,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/data/2adf2d1b6/f8e0b1eefa1e495a831918e6c6ec9892 [2021-10-21 20:19:05,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:19:05,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:19:05,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:19:05,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:19:05,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:19:05,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74cae586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05, skipping insertion in model container [2021-10-21 20:19:05,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:19:05,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:19:05,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:19:05,856 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:19:05,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:19:05,881 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:19:05,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05 WrapperNode [2021-10-21 20:19:05,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:19:05,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:19:05,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:19:05,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:19:05,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:19:05,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:19:05,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:19:05,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:19:05,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:19:05,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:19:05,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:19:05,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:19:05,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (1/1) ... [2021-10-21 20:19:05,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:05,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:05,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:06,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:19:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:19:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:19:06,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:19:06,220 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 20:19:06,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:19:06 BoogieIcfgContainer [2021-10-21 20:19:06,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:19:06,225 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:19:06,225 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:19:06,229 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:19:06,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:19:06,230 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:19:05" (1/3) ... [2021-10-21 20:19:06,232 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632e580f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:19:06, skipping insertion in model container [2021-10-21 20:19:06,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:19:06,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:19:05" (2/3) ... [2021-10-21 20:19:06,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@632e580f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:19:06, skipping insertion in model container [2021-10-21 20:19:06,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:19:06,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:19:06" (3/3) ... [2021-10-21 20:19:06,234 INFO L389 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-10-21 20:19:06,294 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:19:06,294 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:19:06,295 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:19:06,295 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:19:06,295 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:19:06,295 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:19:06,295 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:19:06,295 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:19:06,306 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) [2021-10-21 20:19:06,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:06,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:06,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:06,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:19:06,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:06,332 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:19:06,332 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) [2021-10-21 20:19:06,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:06,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:06,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:06,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:19:06,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:06,341 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 [2021-10-21 20:19:06,342 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 [2021-10-21 20:19:06,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:06,357 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 20:19:06,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:06,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447835061] [2021-10-21 20:19:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:06,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,456 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:06,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:06,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1234440, now seen corresponding path program 1 times [2021-10-21 20:19:06,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:06,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920581088] [2021-10-21 20:19:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:06,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,516 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,531 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:06,533 INFO L82 PathProgramCache]: Analyzing trace with hash 29863591, now seen corresponding path program 1 times [2021-10-21 20:19:06,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:06,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028898867] [2021-10-21 20:19:06,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:06,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,551 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:06,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:06,749 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:06,749 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:06,749 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:06,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:06,750 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:06,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:06,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:06,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:06,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-21 20:19:06,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:06,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:06,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:06,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:06,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:06,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:06,901 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:06,901 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:06,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:06,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:06,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:06,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:06,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:19:06,954 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:06,954 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: [] [2021-10-21 20:19:06,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:06,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:06,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:06,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:07,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:07,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:19:07,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:07,032 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: [] [2021-10-21 20:19:07,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:07,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:07,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:19:07,103 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:07,103 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: [] [2021-10-21 20:19:07,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:19:07,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:07,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:07,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:07,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:07,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:19:07,275 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:07,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 20:19:07,284 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:07,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:07,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:07,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:07,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:07,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:07,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:07,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-10-21 20:19:07,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:07,285 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:07,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:07,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:07,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:07,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:07,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:07,368 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:07,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:19:07,376 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 [2021-10-21 20:19:07,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:07,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:07,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:07,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:07,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:07,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:07,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:07,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,435 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 [2021-10-21 20:19:07,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:07,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:07,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:07,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:07,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:07,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:07,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:19:07,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:07,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,503 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:19:07,508 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 [2021-10-21 20:19:07,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:07,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:07,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:07,518 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:19:07,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:07,520 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:19:07,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:07,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:07,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,564 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:19:07,580 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 [2021-10-21 20:19:07,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:07,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:07,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:07,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:07,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:07,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:07,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:07,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:07,622 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:07,623 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:07,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:07,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:07,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:07,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:19:07,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:07,627 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:07,627 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:07,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:07,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:07,650 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:07,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:07,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:07,713 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:19:07,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:07,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-21 20:19:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:07,877 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 [2021-10-21 20:19:07,878 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) [2021-10-21 20:19:07,934 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. [2021-10-21 20:19:07,935 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 [2021-10-21 20:19:07,936 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) [2021-10-21 20:19:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-21 20:19:07,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 20:19:07,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:07,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 20:19:07,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:07,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 8 letters. [2021-10-21 20:19:07,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:07,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2021-10-21 20:19:07,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 20:19:07,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 30 transitions. [2021-10-21 20:19:07,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-21 20:19:07,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-21 20:19:07,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-21 20:19:07,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:07,950 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 20:19:07,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-21 20:19:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-21 20:19:07,973 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) [2021-10-21 20:19:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-10-21 20:19:07,975 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-21 20:19:07,975 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-21 20:19:07,975 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:19:07,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-10-21 20:19:07,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 20:19:07,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:07,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:07,977 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:19:07,977 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:07,977 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 [2021-10-21 20:19:07,977 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 [2021-10-21 20:19:07,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:07,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 20:19:07,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:07,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807872016] [2021-10-21 20:19:07,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:07,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:07,999 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1328732, now seen corresponding path program 1 times [2021-10-21 20:19:08,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:08,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226800505] [2021-10-21 20:19:08,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:08,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,017 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,034 INFO L82 PathProgramCache]: Analyzing trace with hash 925773253, now seen corresponding path program 1 times [2021-10-21 20:19:08,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:08,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441130676] [2021-10-21 20:19:08,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:08,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,042 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,118 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:08,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:08,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:08,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:08,118 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:08,118 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:08,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:08,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-21 20:19:08,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:08,119 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:08,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,215 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:08,215 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:08,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,217 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:08,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:08,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:19:08,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:08,235 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: [] [2021-10-21 20:19:08,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-21 20:19:08,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,258 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:19:08,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:08,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:08,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:08,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,300 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:08,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:08,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:19:08,434 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:08,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 20:19:08,437 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:08,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:08,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:08,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:08,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:08,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:08,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:08,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-10-21 20:19:08,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:08,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:08,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,523 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:08,524 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:08,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,525 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:19:08,537 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 [2021-10-21 20:19:08,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:08,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:08,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:08,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:08,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:08,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:08,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:08,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:08,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,608 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,619 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 [2021-10-21 20:19:08,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:08,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:08,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:08,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:08,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:08,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:19:08,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:08,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:08,636 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:08,641 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:19:08,641 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:19:08,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,642 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,645 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:08,645 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:08,645 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:08,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:08,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:19:08,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:08,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:08,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:08,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:08,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:08,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:08,747 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 [2021-10-21 20:19:08,747 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) [2021-10-21 20:19:08,775 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. [2021-10-21 20:19:08,775 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 [2021-10-21 20:19:08,776 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) [2021-10-21 20:19:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-21 20:19:08,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 20:19:08,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:08,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-21 20:19:08,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:08,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-21 20:19:08,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:08,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2021-10-21 20:19:08,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:08,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 30 transitions. [2021-10-21 20:19:08,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-21 20:19:08,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-21 20:19:08,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-10-21 20:19:08,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:08,782 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 20:19:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-10-21 20:19:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-21 20:19:08,784 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) [2021-10-21 20:19:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-10-21 20:19:08,785 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-21 20:19:08,785 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-21 20:19:08,785 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:19:08,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-10-21 20:19:08,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:08,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:08,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:08,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:19:08,787 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:08,787 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 [2021-10-21 20:19:08,787 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 [2021-10-21 20:19:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,788 INFO L82 PathProgramCache]: Analyzing trace with hash 31084, now seen corresponding path program 1 times [2021-10-21 20:19:08,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:08,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923210348] [2021-10-21 20:19:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:08,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,794 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 1 times [2021-10-21 20:19:08,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:08,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497871958] [2021-10-21 20:19:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:08,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,805 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:08,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1357271332, now seen corresponding path program 1 times [2021-10-21 20:19:08,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:08,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111306843] [2021-10-21 20:19:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:08,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,818 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:08,825 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:08,858 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:08,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:08,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:08,858 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:08,859 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:08,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:08,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:08,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-21 20:19:08,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:08,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:08,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:08,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:08,928 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:08,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:08,931 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:08,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:08,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:08,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:19:08,959 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:08,959 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: [] [2021-10-21 20:19:08,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:08,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:08,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,000 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:09,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:09,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:19:09,026 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:09,026 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: [] [2021-10-21 20:19:09,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,051 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:09,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:09,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:19:09,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,098 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:19:09,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:09,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:09,243 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:09,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,248 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:09,248 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:09,248 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:09,248 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:09,248 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:09,249 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,249 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:09,249 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:09,249 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-10-21 20:19:09,249 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:09,249 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:09,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,324 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:09,324 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:09,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,325 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,331 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 [2021-10-21 20:19:09,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:09,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:09,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:09,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:09,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:09,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:09,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:09,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:19:09,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:09,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,395 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:19:09,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:09,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:09,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:09,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:09,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:09,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:09,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:19:09,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:09,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,475 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,477 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 [2021-10-21 20:19:09,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:09,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:09,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:09,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:09,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:09,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:09,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:09,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:19:09,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:09,511 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:09,511 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:09,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,532 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,533 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:09,533 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:09,533 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:09,533 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:19:09,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:19:09,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,570 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:09,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:09,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:09,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:09,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:09,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:09,664 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 [2021-10-21 20:19:09,664 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) [2021-10-21 20:19:09,690 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. [2021-10-21 20:19:09,702 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 [2021-10-21 20:19:09,703 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) [2021-10-21 20:19:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-21 20:19:09,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 20:19:09,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:09,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-21 20:19:09,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:09,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-21 20:19:09,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:09,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2021-10-21 20:19:09,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:09,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 38 transitions. [2021-10-21 20:19:09,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-21 20:19:09,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-21 20:19:09,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 38 transitions. [2021-10-21 20:19:09,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:09,709 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 38 transitions. [2021-10-21 20:19:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 38 transitions. [2021-10-21 20:19:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-10-21 20:19:09,712 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) [2021-10-21 20:19:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2021-10-21 20:19:09,713 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-21 20:19:09,713 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-10-21 20:19:09,713 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:19:09,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 35 transitions. [2021-10-21 20:19:09,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:19:09,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:09,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:09,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-21 20:19:09,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:09,715 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 [2021-10-21 20:19:09,715 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 [2021-10-21 20:19:09,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:09,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1357211759, now seen corresponding path program 1 times [2021-10-21 20:19:09,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:09,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421489448] [2021-10-21 20:19:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:09,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,735 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:09,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1419720, now seen corresponding path program 2 times [2021-10-21 20:19:09,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:09,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383280903] [2021-10-21 20:19:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:09,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,749 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:09,770 INFO L82 PathProgramCache]: Analyzing trace with hash -369493672, now seen corresponding path program 1 times [2021-10-21 20:19:09,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:09,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132372425] [2021-10-21 20:19:09,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:09,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,788 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:09,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:09,833 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:09,834 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:09,834 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:09,834 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:09,834 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:09,834 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:09,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:09,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-21 20:19:09,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:09,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:09,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:09,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:09,907 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:09,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,915 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:09,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:09,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:19:09,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:09,952 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: [] [2021-10-21 20:19:09,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:09,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:09,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:09,989 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:09,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:09,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:10,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:19:10,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,032 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:10,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 20:19:10,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:10,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:10,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:10,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,213 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:10,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:10,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:10,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:10,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:10,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:10,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:10,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-10-21 20:19:10,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:10,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:10,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,294 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:10,294 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:10,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,295 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:10,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:19:10,299 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 [2021-10-21 20:19:10,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:10,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:10,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:10,306 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:19:10,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:10,308 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:19:10,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:10,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,357 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:10,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:19:10,358 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 [2021-10-21 20:19:10,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:10,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:10,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:10,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:10,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:10,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:10,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:10,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:10,386 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:19:10,386 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:19:10,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,392 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:10,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:10,393 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:10,393 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:10,393 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:10,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:19:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,427 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:10,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:10,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:10,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:10,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:10,592 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:19:10,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:10,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:10,676 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 [2021-10-21 20:19:10,676 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) [2021-10-21 20:19:10,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,717 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. [2021-10-21 20:19:10,717 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 [2021-10-21 20:19:10,717 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) [2021-10-21 20:19:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-21 20:19:10,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-21 20:19:10,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:10,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 20:19:10,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:10,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-21 20:19:10,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:10,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-10-21 20:19:10,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 20:19:10,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 55 states and 80 transitions. [2021-10-21 20:19:10,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-21 20:19:10,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-21 20:19:10,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 80 transitions. [2021-10-21 20:19:10,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:10,734 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-10-21 20:19:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 80 transitions. [2021-10-21 20:19:10,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2021-10-21 20:19:10,740 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) [2021-10-21 20:19:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2021-10-21 20:19:10,744 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-21 20:19:10,744 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-10-21 20:19:10,744 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:19:10,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 63 transitions. [2021-10-21 20:19:10,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 20:19:10,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:10,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:10,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:10,750 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:10,750 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 [2021-10-21 20:19:10,750 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 [2021-10-21 20:19:10,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:10,751 INFO L82 PathProgramCache]: Analyzing trace with hash 876108449, now seen corresponding path program 1 times [2021-10-21 20:19:10,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:10,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668495594] [2021-10-21 20:19:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:10,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,761 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:10,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1529372, now seen corresponding path program 2 times [2021-10-21 20:19:10,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:10,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375078292] [2021-10-21 20:19:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:10,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,789 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:10,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:10,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1432445116, now seen corresponding path program 1 times [2021-10-21 20:19:10,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:10,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140472428] [2021-10-21 20:19:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:10,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:10,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:10,860 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:10,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:10,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:10,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:10,861 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:10,861 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:10,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:10,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-21 20:19:10,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:10,861 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:10,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:10,930 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:10,930 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:10,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,935 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:10,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:10,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:10,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:19:10,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:10,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:10,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:10,995 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:11,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:11,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:19:11,063 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:11,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:11,069 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:11,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:11,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:11,070 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:11,070 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:11,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:11,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:11,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-10-21 20:19:11,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:11,070 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:11,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:11,137 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:11,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,139 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,141 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 [2021-10-21 20:19:11,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:19:11,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:11,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:11,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:11,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:11,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:11,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:11,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:11,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 20:19:11,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,195 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:19:11,197 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 [2021-10-21 20:19:11,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:11,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:11,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:11,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:11,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:11,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:11,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:11,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:11,213 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:19:11,213 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:19:11,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,214 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:11,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:11,223 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:11,223 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:11,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:19:11,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:11,259 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:11,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:11,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:11,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:11,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:11,331 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 [2021-10-21 20:19:11,331 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) [2021-10-21 20:19:11,363 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. [2021-10-21 20:19:11,363 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 [2021-10-21 20:19:11,364 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) [2021-10-21 20:19:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-21 20:19:11,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-21 20:19:11,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:11,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-21 20:19:11,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:11,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-21 20:19:11,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:11,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 158 transitions. [2021-10-21 20:19:11,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-21 20:19:11,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 90 states and 129 transitions. [2021-10-21 20:19:11,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-21 20:19:11,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:19:11,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2021-10-21 20:19:11,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:11,381 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-10-21 20:19:11,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2021-10-21 20:19:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2021-10-21 20:19:11,387 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) [2021-10-21 20:19:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-21 20:19:11,389 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-21 20:19:11,389 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-21 20:19:11,389 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:19:11,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 111 transitions. [2021-10-21 20:19:11,390 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-21 20:19:11,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:11,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:11,394 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:11,394 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:11,394 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 [2021-10-21 20:19:11,394 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 [2021-10-21 20:19:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:11,395 INFO L82 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 2 times [2021-10-21 20:19:11,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:11,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667833929] [2021-10-21 20:19:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:11,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,412 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 2 times [2021-10-21 20:19:11,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:11,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331099633] [2021-10-21 20:19:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:11,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,433 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:11,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:11,448 INFO L82 PathProgramCache]: Analyzing trace with hash -4707247, now seen corresponding path program 1 times [2021-10-21 20:19:11,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:11,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547575721] [2021-10-21 20:19:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:11,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,460 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:11,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:11,511 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:11,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:11,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:11,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:11,511 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:11,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:11,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:11,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-21 20:19:11,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:11,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:11,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,576 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:11,576 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:11,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,587 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:11,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:11,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:19:11,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:11,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,642 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:11,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:11,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:19:11,778 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:11,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:11,780 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:11,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:11,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:11,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:11,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:11,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:11,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:11,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-10-21 20:19:11,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:11,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:11,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:11,855 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:11,855 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:11,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,856 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,858 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 [2021-10-21 20:19:11,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 20:19:11,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:11,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:11,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:11,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:11,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:11,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:11,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:11,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:11,885 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:11,885 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:11,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:11,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:11,886 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:11,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 20:19:11,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:11,891 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:11,891 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:11,891 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:19:11,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:11,913 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:11,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:11,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:11,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:11,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:12,006 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 [2021-10-21 20:19:12,006 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) [2021-10-21 20:19:12,043 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. [2021-10-21 20:19:12,043 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 [2021-10-21 20:19:12,044 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) [2021-10-21 20:19:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-21 20:19:12,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 20:19:12,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:12,045 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:12,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:12,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:12,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:12,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:12,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:12,130 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 [2021-10-21 20:19:12,130 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) [2021-10-21 20:19:12,156 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. [2021-10-21 20:19:12,157 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 [2021-10-21 20:19:12,157 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) [2021-10-21 20:19:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-21 20:19:12,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 20:19:12,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:12,158 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:12,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:12,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:12,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:12,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:12,235 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 [2021-10-21 20:19:12,235 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) [2021-10-21 20:19:12,260 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. [2021-10-21 20:19:12,260 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 [2021-10-21 20:19:12,261 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) [2021-10-21 20:19:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-21 20:19:12,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 20:19:12,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:12,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-21 20:19:12,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:12,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-21 20:19:12,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:12,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 203 transitions. [2021-10-21 20:19:12,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2021-10-21 20:19:12,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 97 states and 147 transitions. [2021-10-21 20:19:12,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-21 20:19:12,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-21 20:19:12,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 147 transitions. [2021-10-21 20:19:12,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:12,275 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 147 transitions. [2021-10-21 20:19:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 147 transitions. [2021-10-21 20:19:12,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2021-10-21 20:19:12,297 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) [2021-10-21 20:19:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2021-10-21 20:19:12,298 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-21 20:19:12,300 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-10-21 20:19:12,300 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:19:12,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 100 transitions. [2021-10-21 20:19:12,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 20:19:12,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:12,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:12,303 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-21 20:19:12,303 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:12,304 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 [2021-10-21 20:19:12,304 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 [2021-10-21 20:19:12,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:12,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 1 times [2021-10-21 20:19:12,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:12,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292788437] [2021-10-21 20:19:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:12,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,311 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:12,331 INFO L82 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 1 times [2021-10-21 20:19:12,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:12,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954003804] [2021-10-21 20:19:12,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:12,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,342 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:12,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash -725918680, now seen corresponding path program 1 times [2021-10-21 20:19:12,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:12,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397380277] [2021-10-21 20:19:12,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:12,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,367 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:12,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:12,465 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:12,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:12,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:12,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:12,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:12,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:12,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:12,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-21 20:19:12,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:12,466 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:12,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:12,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:12,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,543 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 20:19:12,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:12,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:12,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 20:19:12,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:12,610 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: [] [2021-10-21 20:19:12,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:12,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-21 20:19:12,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,639 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 20:19:12,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:12,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:12,653 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:12,653 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: [] [2021-10-21 20:19:12,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 20:19:12,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,672 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 20:19:12,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:12,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:12,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:12,687 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: [] [2021-10-21 20:19:12,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:12,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,706 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 20:19:12,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:12,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:12,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 20:19:12,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,741 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 20:19:12,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:12,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:12,882 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:12,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-21 20:19:12,884 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:12,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:12,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:12,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:12,884 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:12,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:12,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:12,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-10-21 20:19:12,884 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:12,884 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:12,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:12,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:12,966 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:12,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:12,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:12,967 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:12,975 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 [2021-10-21 20:19:12,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:12,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:12,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:12,984 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:19:12,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:12,985 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:19:12,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:12,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 20:19:13,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:13,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:13,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,022 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 20:19:13,024 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 [2021-10-21 20:19:13,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:13,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:13,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:13,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:13,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:13,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:13,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:13,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:13,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,054 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,071 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 [2021-10-21 20:19:13,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:13,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:13,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:13,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:13,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:13,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:13,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 20:19:13,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:13,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:13,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,141 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 20:19:13,142 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 [2021-10-21 20:19:13,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:13,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:13,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:13,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:13,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:13,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:13,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:13,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:13,170 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:13,170 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:13,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,175 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:13,179 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:13,179 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:13,179 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:13,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 20:19:13,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:13,214 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:13,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:13,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:13,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:13,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:19:13,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:13,314 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 [2021-10-21 20:19:13,314 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) [2021-10-21 20:19:13,388 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. [2021-10-21 20:19:13,389 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 [2021-10-21 20:19:13,389 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) [2021-10-21 20:19:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-21 20:19:13,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-21 20:19:13,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:13,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-21 20:19:13,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:13,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-21 20:19:13,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:13,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 366 transitions. [2021-10-21 20:19:13,394 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-21 20:19:13,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 208 states and 314 transitions. [2021-10-21 20:19:13,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-21 20:19:13,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-21 20:19:13,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 314 transitions. [2021-10-21 20:19:13,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:13,397 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 314 transitions. [2021-10-21 20:19:13,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 314 transitions. [2021-10-21 20:19:13,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-10-21 20:19:13,406 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) [2021-10-21 20:19:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2021-10-21 20:19:13,408 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-21 20:19:13,408 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-10-21 20:19:13,408 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:19:13,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 287 transitions. [2021-10-21 20:19:13,409 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-10-21 20:19:13,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:13,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:13,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:13,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:13,411 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 [2021-10-21 20:19:13,411 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 [2021-10-21 20:19:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:13,411 INFO L82 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 3 times [2021-10-21 20:19:13,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:13,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187102613] [2021-10-21 20:19:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:13,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,422 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 2 times [2021-10-21 20:19:13,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:13,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143831266] [2021-10-21 20:19:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:13,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,427 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:13,432 INFO L82 PathProgramCache]: Analyzing trace with hash -742368616, now seen corresponding path program 2 times [2021-10-21 20:19:13,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:13,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333755083] [2021-10-21 20:19:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:13,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,440 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:13,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:13,512 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:13,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:13,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:13,512 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:13,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:13,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:13,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:13,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-21 20:19:13,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:13,513 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:13,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,584 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:13,584 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:13,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,586 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 20:19:13,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:13,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:13,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:13,601 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: [] [2021-10-21 20:19:13,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:13,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,622 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 20:19:13,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:13,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:13,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-21 20:19:13,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,657 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 20:19:13,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:13,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:13,862 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:13,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-21 20:19:13,865 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:13,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:13,865 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:13,865 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:13,865 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:13,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:13,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:13,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-10-21 20:19:13,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:13,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:13,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:13,946 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:13,946 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:13,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:13,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:13,948 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:13,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 20:19:13,949 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 [2021-10-21 20:19:13,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:13,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:13,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:13,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:13,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:13,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:13,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:14,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:14,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:14,017 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:14,023 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 [2021-10-21 20:19:14,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:14,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:14,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:14,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:14,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:14,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:14,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:14,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 20:19:14,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:14,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:19:14,058 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:19:14,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:14,059 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:14,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:14,061 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:14,061 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:14,061 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:14,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 20:19:14,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:14,093 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:14,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:14,205 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 [2021-10-21 20:19:14,206 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) [2021-10-21 20:19:14,272 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. [2021-10-21 20:19:14,273 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 [2021-10-21 20:19:14,273 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) [2021-10-21 20:19:14,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-21 20:19:14,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-21 20:19:14,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:14,274 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:14,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:14,369 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 [2021-10-21 20:19:14,370 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) [2021-10-21 20:19:14,451 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. [2021-10-21 20:19:14,451 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 [2021-10-21 20:19:14,451 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) [2021-10-21 20:19:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2021-10-21 20:19:14,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-21 20:19:14,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:14,452 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:14,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:14,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:19:14,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:14,562 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 [2021-10-21 20:19:14,562 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) [2021-10-21 20:19:14,677 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. [2021-10-21 20:19:14,678 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 [2021-10-21 20:19:14,679 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) [2021-10-21 20:19:14,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2021-10-21 20:19:14,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-21 20:19:14,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:14,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 19 letters. Loop has 8 letters. [2021-10-21 20:19:14,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:14,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 16 letters. [2021-10-21 20:19:14,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:14,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 786 transitions. [2021-10-21 20:19:14,686 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 86 [2021-10-21 20:19:14,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 342 states and 512 transitions. [2021-10-21 20:19:14,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-21 20:19:14,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-10-21 20:19:14,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 512 transitions. [2021-10-21 20:19:14,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:14,701 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 512 transitions. [2021-10-21 20:19:14,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 512 transitions. [2021-10-21 20:19:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 205. [2021-10-21 20:19:14,710 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) [2021-10-21 20:19:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2021-10-21 20:19:14,712 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-21 20:19:14,712 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-10-21 20:19:14,712 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 20:19:14,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 317 transitions. [2021-10-21 20:19:14,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-10-21 20:19:14,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:14,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:14,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-10-21 20:19:14,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:19:14,715 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 [2021-10-21 20:19:14,715 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 [2021-10-21 20:19:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 2 times [2021-10-21 20:19:14,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:14,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736834728] [2021-10-21 20:19:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:14,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:14,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1729619210, now seen corresponding path program 1 times [2021-10-21 20:19:14,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:14,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822844627] [2021-10-21 20:19:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:14,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,761 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:14,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1535265306, now seen corresponding path program 1 times [2021-10-21 20:19:14,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:14,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413284105] [2021-10-21 20:19:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:14,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,779 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:14,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:14,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:14,843 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:14,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:14,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:14,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:14,843 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:14,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:14,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:14,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-21 20:19:14,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:14,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:14,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:14,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:14,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:14,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:14,905 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:14,905 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:14,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:14,906 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:14,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 20:19:14,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:14,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:14,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:14,920 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: [] [2021-10-21 20:19:14,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-21 20:19:14,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:14,940 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:14,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:14,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:14,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 20:19:14,962 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:14,962 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: [] [2021-10-21 20:19:14,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-21 20:19:14,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:14,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:14,981 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:14,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 20:19:14,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:14,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-21 20:19:15,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,009 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 20:19:15,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:15,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:15,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-21 20:19:15,098 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:15,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:15,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:15,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:15,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:15,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:15,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:15,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-10-21 20:19:15,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:15,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:15,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:15,169 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:15,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,170 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,179 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 [2021-10-21 20:19:15,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:15,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:15,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:15,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:15,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:15,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:15,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 20:19:15,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:15,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,241 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,243 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 [2021-10-21 20:19:15,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:15,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:15,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:15,252 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:19:15,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:15,253 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:19:15,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:15,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 20:19:15,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:15,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,300 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,304 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 [2021-10-21 20:19:15,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:15,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:15,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:15,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:15,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:15,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:15,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:15,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 20:19:15,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:15,330 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:15,330 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:15,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,332 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:15,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:15,333 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:15,333 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:15,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 20:19:15,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,367 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:15,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:15,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:15,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:15,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:19:15,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:15,449 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 [2021-10-21 20:19:15,450 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) [2021-10-21 20:19:15,514 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. [2021-10-21 20:19:15,515 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 [2021-10-21 20:19:15,515 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) [2021-10-21 20:19:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-10-21 20:19:15,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-21 20:19:15,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:15,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-21 20:19:15,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:15,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-21 20:19:15,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:15,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 759 transitions. [2021-10-21 20:19:15,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 20:19:15,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 285 states and 426 transitions. [2021-10-21 20:19:15,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-21 20:19:15,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-21 20:19:15,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 426 transitions. [2021-10-21 20:19:15,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:19:15,526 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 426 transitions. [2021-10-21 20:19:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 426 transitions. [2021-10-21 20:19:15,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2021-10-21 20:19:15,531 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) [2021-10-21 20:19:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2021-10-21 20:19:15,532 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-21 20:19:15,532 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-10-21 20:19:15,532 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 20:19:15,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 295 transitions. [2021-10-21 20:19:15,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 20:19:15,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:19:15,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:19:15,534 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-10-21 20:19:15,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:19:15,535 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 [2021-10-21 20:19:15,535 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 [2021-10-21 20:19:15,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:15,535 INFO L82 PathProgramCache]: Analyzing trace with hash -725859107, now seen corresponding path program 1 times [2021-10-21 20:19:15,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:15,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347902606] [2021-10-21 20:19:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:15,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,542 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:15,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:15,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1479302, now seen corresponding path program 3 times [2021-10-21 20:19:15,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:15,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204075004] [2021-10-21 20:19:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:15,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,551 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:15,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:15,554 INFO L82 PathProgramCache]: Analyzing trace with hash -517142174, now seen corresponding path program 2 times [2021-10-21 20:19:15,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:19:15,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683615199] [2021-10-21 20:19:15,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:19:15,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:19:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,561 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:19:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:19:15,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:19:15,592 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:15,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:15,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:15,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:15,593 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:19:15,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:15,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:15,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-21 20:19:15,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:15,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:15,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:15,647 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:19:15,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,648 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:15,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 20:19:15,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:15,687 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: [] [2021-10-21 20:19:15,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,723 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:15,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 20:19:15,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:19:15,743 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: [] [2021-10-21 20:19:15,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,762 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 20:19:15,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:19:15,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-21 20:19:15,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,793 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 20:19:15,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:19:15,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:19:15,896 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:19:15,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:15,898 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:19:15,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:19:15,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:19:15,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:19:15,898 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:19:15,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:19:15,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:19:15,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-10-21 20:19:15,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:19:15,898 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:19:15,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:19:15,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:19:15,959 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:19:15,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:15,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:15,960 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:15,962 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 [2021-10-21 20:19:15,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:15,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:15,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:15,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:15,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:15,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:15,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 20:19:15,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:16,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:16,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:16,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:16,003 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:16,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 20:19:16,004 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 [2021-10-21 20:19:16,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:16,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:16,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:16,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:16,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:19:16,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:19:16,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:19:16,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:16,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:16,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:16,052 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:16,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 20:19:16,053 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 [2021-10-21 20:19:16,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:19:16,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:19:16,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:19:16,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:19:16,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:19:16,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:19:16,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:19:16,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:19:16,065 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 20:19:16,065 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:19:16,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:19:16,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:19:16,066 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:19:16,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 20:19:16,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:19:16,067 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:19:16,067 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:19:16,067 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:19:16,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:16,086 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:19:16,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:16,184 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 [2021-10-21 20:19:16,184 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) [2021-10-21 20:19:16,207 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. [2021-10-21 20:19:16,209 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 [2021-10-21 20:19:16,209 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) [2021-10-21 20:19:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-10-21 20:19:16,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-21 20:19:16,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:16,209 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:16,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:16,295 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 [2021-10-21 20:19:16,296 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) [2021-10-21 20:19:16,337 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. [2021-10-21 20:19:16,350 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 [2021-10-21 20:19:16,351 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) [2021-10-21 20:19:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-21 20:19:16,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-21 20:19:16,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:16,351 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:19:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:19:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:19:16,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:19:16,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:19:16,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 20:19:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:19:16,454 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 [2021-10-21 20:19:16,454 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) [2021-10-21 20:19:16,478 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. [2021-10-21 20:19:16,478 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 [2021-10-21 20:19:16,478 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) [2021-10-21 20:19:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-21 20:19:16,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-21 20:19:16,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:16,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 4 letters. [2021-10-21 20:19:16,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:16,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-21 20:19:16,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:19:16,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 703 transitions. [2021-10-21 20:19:16,485 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:19:16,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 0 states and 0 transitions. [2021-10-21 20:19:16,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:19:16,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:19:16,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:19:16,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:19:16,485 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:19:16,485 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:19:16,486 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:19:16,486 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 20:19:16,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:19:16,486 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:19:16,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:19:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:19:16 BoogieIcfgContainer [2021-10-21 20:19:16,492 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:19:16,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:19:16,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:19:16,492 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:19:16,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:19:06" (3/4) ... [2021-10-21 20:19:16,496 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:19:16,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:19:16,497 INFO L168 Benchmark]: Toolchain (without parser) took 10819.17 ms. Allocated memory was 119.5 MB in the beginning and 165.7 MB in the end (delta: 46.1 MB). Free memory was 79.1 MB in the beginning and 115.3 MB in the end (delta: -36.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:16,498 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 95.2 MB in the end (delta: 75.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:19:16,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.04 ms. Allocated memory is still 119.5 MB. Free memory was 79.0 MB in the beginning and 94.4 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:16,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 93.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:19:16,499 INFO L168 Benchmark]: Boogie Preprocessor took 21.24 ms. Allocated memory is still 119.5 MB. Free memory was 93.2 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:16,499 INFO L168 Benchmark]: RCFGBuilder took 274.06 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 84.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:16,499 INFO L168 Benchmark]: BuchiAutomizer took 10266.41 ms. Allocated memory was 119.5 MB in the beginning and 165.7 MB in the end (delta: 46.1 MB). Free memory was 84.0 MB in the beginning and 115.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:19:16,500 INFO L168 Benchmark]: Witness Printer took 3.66 ms. Allocated memory is still 165.7 MB. Free memory is still 115.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:19:16,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 95.2 MB in the end (delta: 75.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 203.04 ms. Allocated memory is still 119.5 MB. Free memory was 79.0 MB in the beginning and 94.4 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 93.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.24 ms. Allocated memory is still 119.5 MB. Free memory was 93.2 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 274.06 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 84.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10266.41 ms. Allocated memory was 119.5 MB in the beginning and 165.7 MB in the end (delta: 46.1 MB). Free memory was 84.0 MB in the beginning and 115.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.66 ms. Allocated memory is still 165.7 MB. Free memory is still 115.3 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 10.2s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.3s. Construction of modules took 0.2s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 84.4ms 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, 277.6ms 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: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:19:16,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4aa0b7d-9b56-4f7f-aabd-f27b6f23b962/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...