./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt --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 32bit --witnessprinter.graph.data.programhash 0e5db84b9f9b462c8c6fbeb8b453779946c1329e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:38:09,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:38:09,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:38:09,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:38:09,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:38:09,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:38:09,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:38:09,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:38:09,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:38:09,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:38:09,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:38:09,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:38:09,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:38:09,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:38:09,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:38:09,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:38:09,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:38:09,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:38:09,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:38:09,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:38:09,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:38:09,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:38:09,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:38:09,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:38:09,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:38:09,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:38:09,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:38:09,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:38:09,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:38:09,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:38:09,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:38:09,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:38:09,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:38:09,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:38:09,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:38:09,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:38:09,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:38:09,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:38:09,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:38:09,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:38:09,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:38:09,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:38:09,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:38:09,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:38:09,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:38:09,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:38:09,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:38:09,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:38:09,616 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:38:09,616 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:38:09,617 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:38:09,617 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:38:09,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:38:09,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:38:09,619 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:38:09,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:38:09,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:38:09,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:38:09,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:38:09,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:38:09,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:38:09,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:38:09,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:38:09,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:38:09,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:38:09,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:38:09,621 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:38:09,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:38:09,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:38:09,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:38:09,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:38:09,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:38:09,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:38:09,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:38:09,626 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:38:09,626 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_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5db84b9f9b462c8c6fbeb8b453779946c1329e [2021-10-13 00:38:10,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:38:10,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:38:10,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:38:10,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:38:10,095 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:38:10,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-13 00:38:10,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/data/efefda53b/ab4e87e3eba242c1a426aa01899b3cf3/FLAG2dede2963 [2021-10-13 00:38:10,888 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:38:10,889 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/sv-benchmarks/c/loop-lit/mcmillan2006.i [2021-10-13 00:38:10,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/data/efefda53b/ab4e87e3eba242c1a426aa01899b3cf3/FLAG2dede2963 [2021-10-13 00:38:11,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/data/efefda53b/ab4e87e3eba242c1a426aa01899b3cf3 [2021-10-13 00:38:11,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:38:11,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:38:11,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:38:11,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:38:11,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:38:11,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f80891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11, skipping insertion in model container [2021-10-13 00:38:11,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:38:11,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:38:11,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-13 00:38:11,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:38:11,512 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:38:11,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2021-10-13 00:38:11,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:38:11,558 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:38:11,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11 WrapperNode [2021-10-13 00:38:11,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:38:11,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:38:11,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:38:11,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:38:11,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:38:11,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:38:11,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:38:11,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:38:11,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:38:11,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:38:11,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:38:11,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:38:11,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (1/1) ... [2021-10-13 00:38:11,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:11,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:11,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:38:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:38:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:38:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:38:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:38:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:38:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:38:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:38:11,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:38:11,948 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 00:38:11,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:11 BoogieIcfgContainer [2021-10-13 00:38:11,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:38:11,952 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:38:11,952 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:38:11,956 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:38:11,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:38:11,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:38:11" (1/3) ... [2021-10-13 00:38:11,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@627a8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:38:11, skipping insertion in model container [2021-10-13 00:38:11,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:38:11,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:38:11" (2/3) ... [2021-10-13 00:38:11,960 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@627a8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:38:11, skipping insertion in model container [2021-10-13 00:38:11,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:38:11,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:11" (3/3) ... [2021-10-13 00:38:11,962 INFO L389 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2021-10-13 00:38:12,017 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:38:12,018 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:38:12,018 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:38:12,018 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:38:12,018 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:38:12,019 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:38:12,019 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:38:12,019 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:38:12,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-13 00:38:12,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 00:38:12,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:38:12,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:38:12,061 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:38:12,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:38:12,062 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:38:12,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-13 00:38:12,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 00:38:12,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:38:12,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:38:12,065 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:38:12,065 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:38:12,073 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 7#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L28true assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 15#L30-3true [2021-10-13 00:38:12,073 INFO L793 eck$LassoCheckResult]: Loop: 15#L30-3true assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 5#L30-2true main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 15#L30-3true [2021-10-13 00:38:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:12,080 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-13 00:38:12,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:12,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464487812] [2021-10-13 00:38:12,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:12,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,224 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:12,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-10-13 00:38:12,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:12,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636118825] [2021-10-13 00:38:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:12,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,337 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:12,358 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-10-13 00:38:12,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:12,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621886772] [2021-10-13 00:38:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:12,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,406 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:12,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:13,147 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:38:13,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:38:13,148 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:38:13,148 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:38:13,148 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:38:13,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:13,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:38:13,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:38:13,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2021-10-13 00:38:13,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:38:13,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:38:13,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:13,847 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:38:13,853 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:38:13,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:13,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:13,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:13,869 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 [2021-10-13 00:38:13,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:13,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:13,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:13,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:13,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:13,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:13,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:13,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:38:13,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:13,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:13,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:13,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:13,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:38:13,954 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 [2021-10-13 00:38:13,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:13,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:13,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:13,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:13,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:13,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:13,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:13,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:38:14,032 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 [2021-10-13 00:38:14,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:14,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:14,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:14,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:38:14,093 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 [2021-10-13 00:38:14,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:14,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:14,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:14,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,150 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:38:14,161 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 [2021-10-13 00:38:14,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:14,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:14,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:14,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,226 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 [2021-10-13 00:38:14,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,238 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-13 00:38:14,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:38:14,248 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-13 00:38:14,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,331 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,337 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 [2021-10-13 00:38:14,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:38:14,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:38:14,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:38:14,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,524 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:38:14,530 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 [2021-10-13 00:38:14,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:14,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:14,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:14,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,589 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:38:14,592 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 [2021-10-13 00:38:14,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,662 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:38:14,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:38:14,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:38:14,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:38:14,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:14,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,803 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:38:14,809 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 [2021-10-13 00:38:14,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:14,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:14,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:14,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:14,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:14,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:14,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:38:14,885 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-13 00:38:14,886 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-13 00:38:14,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:14,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,890 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:38:14,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:38:14,927 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:38:14,927 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:38:14,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-13 00:38:14,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:14,999 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-13 00:38:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:15,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:38:15,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:15,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:38:15,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:15,165 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 [2021-10-13 00:38:15,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2021-10-13 00:38:15,253 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 51 transitions. Complement of second has 7 states. [2021-10-13 00:38:15,261 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 [2021-10-13 00:38:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2021-10-13 00:38:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-13 00:38:15,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:38:15,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:15,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:38:15,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:15,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 00:38:15,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:15,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-13 00:38:15,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:38:15,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 11 states and 13 transitions. [2021-10-13 00:38:15,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-13 00:38:15,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-13 00:38:15,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-13 00:38:15,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:38:15,281 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-13 00:38:15,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-13 00:38:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 00:38:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 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) [2021-10-13 00:38:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-13 00:38:15,312 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-13 00:38:15,312 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-13 00:38:15,312 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:38:15,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-10-13 00:38:15,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:38:15,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:38:15,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:38:15,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:38:15,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:38:15,314 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 130#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 131#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 132#L30-3 assume !(main_~i~0 < main_~n~0); 135#L30-4 main_~i~1 := 0; 133#L31-3 [2021-10-13 00:38:15,315 INFO L793 eck$LassoCheckResult]: Loop: 133#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 134#L19 assume !(0 == __VERIFIER_assert_~cond); 125#L19-2 havoc main_#t~mem7; 126#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 133#L31-3 [2021-10-13 00:38:15,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,315 INFO L82 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2021-10-13 00:38:15,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250838245] [2021-10-13 00:38:15,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,329 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 1 times [2021-10-13 00:38:15,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374408001] [2021-10-13 00:38:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,373 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:15,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1304171029, now seen corresponding path program 1 times [2021-10-13 00:38:15,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614787664] [2021-10-13 00:38:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:15,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:15,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614787664] [2021-10-13 00:38:15,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614787664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:38:15,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:38:15,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:38:15,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056032619] [2021-10-13 00:38:15,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:15,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:38:15,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:38:15,655 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:15,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:15,700 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-10-13 00:38:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:38:15,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-10-13 00:38:15,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:38:15,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2021-10-13 00:38:15,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-13 00:38:15,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-13 00:38:15,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-10-13 00:38:15,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:38:15,704 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-13 00:38:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-10-13 00:38:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-13 00:38:15,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-10-13 00:38:15,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-13 00:38:15,706 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-13 00:38:15,706 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-13 00:38:15,706 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:38:15,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-13 00:38:15,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:38:15,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:38:15,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:38:15,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:15,708 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:38:15,708 INFO L791 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 169#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 170#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;havoc main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 171#L30-3 assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 166#L30-2 main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 167#L30-3 assume !(main_~i~0 < main_~n~0); 174#L30-4 main_~i~1 := 0; 173#L31-3 [2021-10-13 00:38:15,708 INFO L793 eck$LassoCheckResult]: Loop: 173#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 172#L19 assume !(0 == __VERIFIER_assert_~cond); 164#L19-2 havoc main_#t~mem7; 165#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 173#L31-3 [2021-10-13 00:38:15,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2021-10-13 00:38:15,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133433909] [2021-10-13 00:38:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 2 times [2021-10-13 00:38:15,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995663012] [2021-10-13 00:38:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,799 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:15,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1358706313, now seen corresponding path program 1 times [2021-10-13 00:38:15,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:15,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108917086] [2021-10-13 00:38:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:15,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,847 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:15,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:15,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:16,419 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:38:16,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:38:16,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:38:16,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:38:16,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:38:16,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:16,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:38:16,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:38:16,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2021-10-13 00:38:16,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:38:16,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:38:16,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:16,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:17,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:38:17,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:38:17,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,050 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,058 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 [2021-10-13 00:38:17,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:38:17,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,119 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,125 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 [2021-10-13 00:38:17,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:38:17,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,194 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,203 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 [2021-10-13 00:38:17,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:38:17,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,267 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,272 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 [2021-10-13 00:38:17,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:38:17,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,312 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:38:17,318 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 [2021-10-13 00:38:17,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,370 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:38:17,375 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 [2021-10-13 00:38:17,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,428 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:38:17,432 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 [2021-10-13 00:38:17,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:17,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:17,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,523 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,530 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 [2021-10-13 00:38:17,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:17,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:17,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:38:17,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,610 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,612 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 [2021-10-13 00:38:17,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,624 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-13 00:38:17,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,629 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-13 00:38:17,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:17,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:38:17,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,691 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,699 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 [2021-10-13 00:38:17,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:38:17,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:38:17,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:38:17,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:38:17,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:17,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,771 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:38:17,772 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 [2021-10-13 00:38:17,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:17,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:17,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:17,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:17,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:17,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:17,815 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:38:17,856 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-13 00:38:17,857 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-13 00:38:17,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:17,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:17,858 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:17,866 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:38:17,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:38:17,898 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:38:17,898 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:38:17,899 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~1) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [] [2021-10-13 00:38:17,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:17,964 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-13 00:38:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:17,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:38:18,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:18,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:38:18,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:18,121 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 [2021-10-13 00:38:18,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-10-13 00:38:18,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 15 states and 17 transitions. Complement of second has 4 states. [2021-10-13 00:38:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:38:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-10-13 00:38:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-13 00:38:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-13 00:38:18,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-13 00:38:18,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-13 00:38:18,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:18,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-10-13 00:38:18,148 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:38:18,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-13 00:38:18,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:38:18,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:38:18,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:38:18,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:38:18,149 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:18,149 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:18,149 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:18,149 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:38:18,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:38:18,150 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:38:18,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:38:18,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:38:18 BoogieIcfgContainer [2021-10-13 00:38:18,156 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:38:18,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:38:18,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:38:18,173 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:38:18,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:38:11" (3/4) ... [2021-10-13 00:38:18,177 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:38:18,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:38:18,179 INFO L168 Benchmark]: Toolchain (without parser) took 6946.38 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 65.7 MB in the beginning and 66.5 MB in the end (delta: -787.1 kB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,179 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:38:18,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.40 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 72.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.58 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 70.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,181 INFO L168 Benchmark]: Boogie Preprocessor took 27.61 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 69.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,181 INFO L168 Benchmark]: RCFGBuilder took 321.04 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 60.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,182 INFO L168 Benchmark]: BuchiAutomizer took 6204.54 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 60.2 MB in the beginning and 67.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,182 INFO L168 Benchmark]: Witness Printer took 20.12 ms. Allocated memory is still 130.0 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:18,185 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 96.5 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.40 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 72.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.58 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 70.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.61 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 69.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.04 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 60.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6204.54 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 60.2 MB in the beginning and 67.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * Witness Printer took 20.12 ms. Allocated memory is still 130.0 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 15.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 29 SDslu, 32 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital177 mio100 ax100 hnf99 lsp93 ukn64 mio100 lsp55 div100 bol100 ite100 ukn100 eq163 hnf94 smp100 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 95ms VariablesStem: 4 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:38:18,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-13 00:38:18,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6a416a9-800e-4129-b240-86b2441511bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...