./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:39:15,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:39:15,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:39:15,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:39:15,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:39:15,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:39:15,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:39:15,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:39:15,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:39:15,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:39:15,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:39:15,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:39:15,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:39:15,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:39:15,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:39:15,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:39:15,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:39:15,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:39:15,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:39:15,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:39:15,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:39:15,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:39:15,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:39:15,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:39:15,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:39:15,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:39:15,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:39:15,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:39:15,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:39:15,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:39:15,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:39:15,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:39:15,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:39:15,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:39:15,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:39:15,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:39:15,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:39:15,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:39:15,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:39:15,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:39:15,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:39:15,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:39:15,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:39:15,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:39:15,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:39:15,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:39:15,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:39:15,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:39:15,521 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:39:15,521 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:39:15,522 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:39:15,522 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:39:15,522 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:39:15,522 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:39:15,522 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:39:15,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:39:15,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:39:15,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:39:15,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:39:15,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:39:15,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:39:15,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:39:15,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:39:15,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:39:15,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:39:15,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:39:15,525 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:39:15,525 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:39:15,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:39:15,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:39:15,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:39:15,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:39:15,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:39:15,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:39:15,527 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:39:15,527 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_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 [2021-10-28 08:39:15,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:39:15,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:39:15,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:39:15,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:39:15,825 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:39:15,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-10-28 08:39:15,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/data/cc5e6eb08/46be5325fe974beabcb0461a0c839938/FLAG540fafa6b [2021-10-28 08:39:16,407 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:39:16,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-10-28 08:39:16,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/data/cc5e6eb08/46be5325fe974beabcb0461a0c839938/FLAG540fafa6b [2021-10-28 08:39:16,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/data/cc5e6eb08/46be5325fe974beabcb0461a0c839938 [2021-10-28 08:39:16,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:39:16,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:39:16,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:16,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:39:16,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:39:16,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:16" (1/1) ... [2021-10-28 08:39:16,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de375d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:16, skipping insertion in model container [2021-10-28 08:39:16,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:16" (1/1) ... [2021-10-28 08:39:16,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:39:16,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:39:17,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:17,114 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:39:17,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:17,184 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:39:17,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17 WrapperNode [2021-10-28 08:39:17,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:17,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:17,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:39:17,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:39:17,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:17,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:39:17,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:39:17,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:39:17,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:39:17,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:39:17,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:39:17,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:39:17,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (1/1) ... [2021-10-28 08:39:17,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:17,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:17,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:17,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:39:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:39:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:39:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:39:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:39:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:39:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:39:17,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:39:17,713 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 08:39:17,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:17 BoogieIcfgContainer [2021-10-28 08:39:17,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:39:17,728 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:39:17,728 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:39:17,731 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:39:17,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:17,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:39:16" (1/3) ... [2021-10-28 08:39:17,760 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a66dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:39:17, skipping insertion in model container [2021-10-28 08:39:17,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:17,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:17" (2/3) ... [2021-10-28 08:39:17,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a66dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:39:17, skipping insertion in model container [2021-10-28 08:39:17,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:17,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:17" (3/3) ... [2021-10-28 08:39:17,767 INFO L389 chiAutomizerObserver]: Analyzing ICFG add_last-alloca-1.i [2021-10-28 08:39:17,819 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:39:17,819 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:39:17,820 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:39:17,820 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:39:17,820 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:39:17,820 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:39:17,820 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:39:17,820 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:39:17,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:17,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 08:39:17,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:17,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:17,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:39:17,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:39:17,864 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:39:17,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:17,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 08:39:17,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:17,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:17,867 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:39:17,867 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:39:17,872 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 11#L515true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 8#L515-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 14#L517true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 6#L520-3true [2021-10-28 08:39:17,873 INFO L793 eck$LassoCheckResult]: Loop: 6#L520-3true assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 12#L520-2true main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 6#L520-3true [2021-10-28 08:39:17,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:17,878 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-28 08:39:17,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:17,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972002158] [2021-10-28 08:39:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:17,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:17,983 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:18,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:18,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-10-28 08:39:18,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:18,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34862649] [2021-10-28 08:39:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:18,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:18,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:18,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:18,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-10-28 08:39:18,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:18,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891372475] [2021-10-28 08:39:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:18,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:18,100 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:18,143 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:18,567 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:39:18,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:39:18,568 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:39:18,568 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:39:18,568 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:39:18,568 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:18,568 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:39:18,568 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:39:18,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration1_Lasso [2021-10-28 08:39:18,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:39:18,569 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:39:18,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:18,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:19,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:39:19,060 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:39:19,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:39:19,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:39:19,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:39:19,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:39:19,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:39:19,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 08:39:19,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:19,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:19,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:39:19,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:19,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:19,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:39:19,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:39:19,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,535 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:19,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:19,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:39:19,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:39:19,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,681 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:19,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:19,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:19,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:39:19,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:19,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,748 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:39:19,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:19,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:19,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:19,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-28 08:39:19,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,805 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:39:19,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:19,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:19,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:19,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:19,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:19,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:19,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:19,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:39:19,904 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 08:39:19,905 INFO L444 ModelExtractionUtils]: 3 out of 25 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-28 08:39:19,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:19,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:19,915 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:19,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:39:19,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:39:19,972 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:39:19,973 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:39:19,973 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-28 08:39:20,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:20,017 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 08:39:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:20,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:39:20,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:20,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:39:20,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:20,110 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:39:20,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:20,170 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 41 transitions. Complement of second has 7 states. [2021-10-28 08:39:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:39:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-10-28 08:39:20,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:39:20,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:20,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 08:39:20,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:20,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 08:39:20,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:20,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 41 transitions. [2021-10-28 08:39:20,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:20,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2021-10-28 08:39:20,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 08:39:20,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 08:39:20,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2021-10-28 08:39:20,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:20,199 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 08:39:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2021-10-28 08:39:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-28 08:39:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 08:39:20,236 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 08:39:20,236 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 08:39:20,236 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:39:20,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 08:39:20,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:20,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:20,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:20,239 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:39:20,239 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:39:20,239 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 107#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 113#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 111#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 112#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 108#L520-3 assume !(main_~k~0 < main_~length~0); 105#L525-2 [2021-10-28 08:39:20,240 INFO L793 eck$LassoCheckResult]: Loop: 105#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 104#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 105#L525-2 [2021-10-28 08:39:20,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash 889568363, now seen corresponding path program 1 times [2021-10-28 08:39:20,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:20,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521170649] [2021-10-28 08:39:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:20,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:20,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521170649] [2021-10-28 08:39:20,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521170649] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:20,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:20,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:39:20,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378029069] [2021-10-28 08:39:20,313 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:39:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2021-10-28 08:39:20,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:20,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244271078] [2021-10-28 08:39:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,324 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:20,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:39:20,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:20,441 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:20,469 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-28 08:39:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:39:20,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-28 08:39:20,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:20,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-10-28 08:39:20,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 08:39:20,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 08:39:20,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-28 08:39:20,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:20,472 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-28 08:39:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-28 08:39:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-28 08:39:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 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) [2021-10-28 08:39:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-28 08:39:20,474 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 08:39:20,474 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 08:39:20,474 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:39:20,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-10-28 08:39:20,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:20,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:20,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:20,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:20,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:39:20,476 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 135#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 141#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 139#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 140#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 136#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 137#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 138#L520-3 assume !(main_~k~0 < main_~length~0); 133#L525-2 [2021-10-28 08:39:20,476 INFO L793 eck$LassoCheckResult]: Loop: 133#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 132#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 133#L525-2 [2021-10-28 08:39:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash 176707625, now seen corresponding path program 1 times [2021-10-28 08:39:20,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:20,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068899354] [2021-10-28 08:39:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,497 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:20,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 2 times [2021-10-28 08:39:20,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:20,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32442937] [2021-10-28 08:39:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:20,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:20,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1982663218, now seen corresponding path program 1 times [2021-10-28 08:39:20,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:20,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245419507] [2021-10-28 08:39:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:20,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:20,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245419507] [2021-10-28 08:39:20,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245419507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:20,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577757615] [2021-10-28 08:39:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:20,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:20,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:20,921 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:20,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 08:39:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:20,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 08:39:20,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:21,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-28 08:39:21,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:21,279 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-10-28 08:39:21,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 18 [2021-10-28 08:39:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:21,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577757615] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:21,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:39:21,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-10-28 08:39:21,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430444320] [2021-10-28 08:39:21,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:39:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:39:21,375 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:21,512 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-10-28 08:39:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:39:21,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-10-28 08:39:21,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:21,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 15 transitions. [2021-10-28 08:39:21,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 08:39:21,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 08:39:21,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-10-28 08:39:21,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:21,519 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-28 08:39:21,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-10-28 08:39:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 08:39:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-28 08:39:21,522 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-28 08:39:21,522 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-28 08:39:21,522 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:39:21,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2021-10-28 08:39:21,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:39:21,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:21,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:21,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:21,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:39:21,525 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 209#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 216#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 214#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 215#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 210#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 211#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 212#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 213#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 217#L520-3 assume !(main_~k~0 < main_~length~0); 207#L525-2 [2021-10-28 08:39:21,525 INFO L793 eck$LassoCheckResult]: Loop: 207#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 206#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 207#L525-2 [2021-10-28 08:39:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1982661529, now seen corresponding path program 2 times [2021-10-28 08:39:21,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:21,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744218019] [2021-10-28 08:39:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:21,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:21,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 3 times [2021-10-28 08:39:21,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:21,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283912534] [2021-10-28 08:39:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:21,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,613 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:21,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:21,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1627751052, now seen corresponding path program 2 times [2021-10-28 08:39:21,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:21,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513154001] [2021-10-28 08:39:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:21,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,651 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:21,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:22,027 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:39:22,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:39:22,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:39:22,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:39:22,027 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:39:22,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:39:22,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:39:22,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration4_Lasso [2021-10-28 08:39:22,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:39:22,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:39:22,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:22,583 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:39:22,583 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:39:22,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,587 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:22,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:22,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:22,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:39:22,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:22,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:22,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,656 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:22,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:22,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:22,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:39:22,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:22,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:22,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,724 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:39:22,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:22,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:22,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:22,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:22,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:22,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:22,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:22,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:39:22,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:22,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:22,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,876 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:39:22,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:22,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:22,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:22,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:22,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:22,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:22,959 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:22,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:22,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:22,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:22,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:22,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:22,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:22,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:22,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:22,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:39:22,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,030 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:23,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:23,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:23,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:39:23,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,092 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:23,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:23,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:39:23,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,152 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:39:23,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:23,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:23,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:23,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,203 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:39:23,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:23,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:23,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:23,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,258 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:39:23,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:23,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:23,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:23,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,331 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:39:23,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:23,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:23,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:23,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:23,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:23,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:39:23,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:39:23,367 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:39:23,396 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 08:39:23,396 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-10-28 08:39:23,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:23,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:23,404 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:23,408 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:39:23,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:39:23,429 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:39:23,429 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:39:23,430 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2) = -1*ULTIMATE.start_main_~a~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2 Supporting invariants [] [2021-10-28 08:39:23,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 08:39:23,472 INFO L297 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 08:39:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:23,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:39:23,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:23,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:39:23,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:23,647 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 08:39:23,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:23,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 6 states. [2021-10-28 08:39:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:39:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 08:39:23,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 08:39:23,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:23,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-28 08:39:23,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:23,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 08:39:23,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:23,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-10-28 08:39:23,684 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:39:23,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-10-28 08:39:23,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:39:23,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:39:23,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:39:23,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:23,685 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:39:23,685 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:39:23,685 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:39:23,685 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:39:23,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:39:23,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:39:23,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:39:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:39:23 BoogieIcfgContainer [2021-10-28 08:39:23,689 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:39:23,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:39:23,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:39:23,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:39:23,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:17" (3/4) ... [2021-10-28 08:39:23,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:39:23,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:39:23,694 INFO L168 Benchmark]: Toolchain (without parser) took 6946.14 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 88.3 MB in the beginning and 71.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,694 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:23,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.62 ms. Allocated memory is still 119.5 MB. Free memory was 88.0 MB in the beginning and 89.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.02 ms. Allocated memory is still 119.5 MB. Free memory was 89.0 MB in the beginning and 87.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,696 INFO L168 Benchmark]: Boogie Preprocessor took 50.74 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 86.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,696 INFO L168 Benchmark]: RCFGBuilder took 430.21 ms. Allocated memory is still 119.5 MB. Free memory was 86.1 MB in the beginning and 76.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,697 INFO L168 Benchmark]: BuchiAutomizer took 5961.75 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 76.0 MB in the beginning and 72.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:23,698 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 146.8 MB. Free memory was 72.9 MB in the beginning and 71.9 MB in the end (delta: 985.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:23,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.62 ms. Allocated memory is still 119.5 MB. Free memory was 88.0 MB in the beginning and 89.0 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.02 ms. Allocated memory is still 119.5 MB. Free memory was 89.0 MB in the beginning and 87.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.74 ms. Allocated memory is still 119.5 MB. Free memory was 87.3 MB in the beginning and 86.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 430.21 ms. Allocated memory is still 119.5 MB. Free memory was 86.1 MB in the beginning and 76.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5961.75 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 76.0 MB in the beginning and 72.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * Witness Printer took 2.77 ms. Allocated memory is still 146.8 MB. Free memory was 72.9 MB in the beginning and 71.9 MB in the end (delta: 985.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length + -1 * k and consists of 5 locations. One deterministic module has affine ranking function -1 * a + unknown-#length-unknown[arr] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 61 SDslu, 19 SDs, 0 SdLazy, 105 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax113 hnf99 lsp84 ukn77 mio100 lsp61 div100 bol100 ite100 ukn100 eq168 hnf91 smp100 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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! [2021-10-28 08:39:23,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:23,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-28 08:39:24,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d5870b-067b-4494-84a5-de6942909ad7/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...