./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrspn-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_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/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_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/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_924d300c-859b-42bb-94dc-49404629f7e4/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 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:48:36,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:36,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:36,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:36,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:36,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:36,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:36,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:36,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:36,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:36,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:36,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:36,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:36,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:36,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:36,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:36,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:36,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:36,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:36,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:36,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:36,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:36,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:36,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:36,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:36,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:36,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:36,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:36,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:36,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:36,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:36,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:36,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:36,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:36,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:36,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:36,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:36,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:36,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:36,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:36,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:36,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:48:36,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:36,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:36,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:36,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:36,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:36,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:36,542 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:36,543 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:48:36,543 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:48:36,543 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:48:36,544 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:48:36,545 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:48:36,545 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:48:36,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:36,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:36,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:36,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:36,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:36,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:36,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:48:36,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:48:36,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:48:36,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:36,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:48:36,549 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:48:36,549 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:36,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:48:36,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:36,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:36,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:36,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:48:36,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:36,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:48:36,554 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_924d300c-859b-42bb-94dc-49404629f7e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 [2021-10-28 09:48:36,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:36,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:36,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:36,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:36,845 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:36,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-10-28 09:48:36,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/data/14882d5d9/9433e00980024e2b8042e5fe33b4a104/FLAG04788215f [2021-10-28 09:48:37,476 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:37,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-10-28 09:48:37,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/data/14882d5d9/9433e00980024e2b8042e5fe33b4a104/FLAG04788215f [2021-10-28 09:48:37,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/data/14882d5d9/9433e00980024e2b8042e5fe33b4a104 [2021-10-28 09:48:37,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:37,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:48:37,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:37,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:37,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:37,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:37" (1/1) ... [2021-10-28 09:48:37,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e00e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:37, skipping insertion in model container [2021-10-28 09:48:37,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:37" (1/1) ... [2021-10-28 09:48:37,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:37,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:38,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:38,220 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:38,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:38,314 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:38,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38 WrapperNode [2021-10-28 09:48:38,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:38,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:38,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:48:38,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:48:38,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:38,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:38,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:38,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:38,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:38,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:38,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:38,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:38,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (1/1) ... [2021-10-28 09:48:38,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:38,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:38,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:38,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:48:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:48:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:48:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:38,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:38,921 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:48:38,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:38 BoogieIcfgContainer [2021-10-28 09:48:38,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:38,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:48:38,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:48:38,927 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:48:38,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:38,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:48:37" (1/3) ... [2021-10-28 09:48:38,930 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f4472f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:48:38, skipping insertion in model container [2021-10-28 09:48:38,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:38,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:38" (2/3) ... [2021-10-28 09:48:38,930 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f4472f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:48:38, skipping insertion in model container [2021-10-28 09:48:38,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:38,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:38" (3/3) ... [2021-10-28 09:48:38,932 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrspn-alloca-1.i [2021-10-28 09:48:39,007 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:48:39,007 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:48:39,008 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:48:39,008 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:48:39,008 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:48:39,008 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:48:39,008 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:48:39,008 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:48:39,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:39,072 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-10-28 09:48:39,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:39,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:39,078 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:48:39,078 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:48:39,079 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:48:39,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:39,081 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-10-28 09:48:39,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:39,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:39,082 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:48:39,082 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:48:39,089 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~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 11#L532true assume !(main_~length1~0 < 1); 6#L532-2true assume !(main_~length2~0 < 1); 3#L535-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 20#L541-3true [2021-10-28 09:48:39,089 INFO L793 eck$LassoCheckResult]: Loop: 20#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 25#L541-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 20#L541-3true [2021-10-28 09:48:39,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 09:48:39,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:39,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756822040] [2021-10-28 09:48:39,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:39,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,323 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:39,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:39,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-10-28 09:48:39,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:39,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690903879] [2021-10-28 09:48:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:39,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:39,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:39,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-10-28 09:48:39,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:39,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595576211] [2021-10-28 09:48:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:39,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,421 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:39,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:39,950 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:39,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:39,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:39,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:39,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:39,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:39,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:39,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:39,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration1_Lasso [2021-10-28 09:48:39,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:39,953 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:39,980 INFO 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 09:48:39,985 INFO 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 09:48:39,988 INFO 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 09:48:39,990 INFO 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 09:48:40,142 INFO 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 09:48:40,146 INFO 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 09:48:40,150 INFO 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 09:48:40,153 INFO 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 09:48:40,158 INFO 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 09:48:40,165 INFO 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 09:48:40,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:40,170 INFO 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 09:48:40,173 INFO 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 09:48:40,176 INFO 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 09:48:40,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:40,491 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:48:40,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:48:40,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,502 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 09:48:40,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:40,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:40,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:40,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:48:40,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:40,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,581 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 09:48:40,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:40,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:40,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:40,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:48:40,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 09:48:40,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,622 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 09:48:40,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:48:40,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:40,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:40,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:40,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:40,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:48:40,677 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 09:48:40,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:40,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:40,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:40,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,757 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 09:48:40,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:40,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:40,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:40,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:48:40,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:40,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,811 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,818 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 09:48:40,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:40,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:40,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:48:40,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:40,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:40,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,893 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,900 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 09:48:40,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:40,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:40,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:40,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:40,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:40,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:40,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:48:40,942 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:48:40,975 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-28 09:48:40,975 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-28 09:48:40,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:40,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:40,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:40,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:48:40,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:48:41,010 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:48:41,010 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:48:41,011 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 09:48:41,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:41,064 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 09:48:41,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:41,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:48:41,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:41,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:48:41,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:41,171 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 09:48:41,187 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 09:48:41,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 09:48:41,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 60 states and 87 transitions. Complement of second has 7 states. [2021-10-28 09:48:41,257 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 09:48:41,259 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 09:48:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2021-10-28 09:48:41,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 09:48:41,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:41,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 09:48:41,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:41,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 09:48:41,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:41,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 87 transitions. [2021-10-28 09:48:41,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:48:41,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 20 states and 27 transitions. [2021-10-28 09:48:41,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:48:41,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 09:48:41,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-28 09:48:41,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:41,286 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:48:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-28 09:48:41,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 09:48:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-28 09:48:41,312 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:48:41,313 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:48:41,313 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:48:41,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-28 09:48:41,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:48:41,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:41,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:41,319 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:41,319 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:48:41,319 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 166#L532 assume !(main_~length1~0 < 1); 160#L532-2 assume !(main_~length2~0 < 1); 156#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 157#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 167#L541-4 main_~i~1 := 0; 163#L546-3 [2021-10-28 09:48:41,319 INFO L793 eck$LassoCheckResult]: Loop: 163#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 165#L546-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 163#L546-3 [2021-10-28 09:48:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-10-28 09:48:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:41,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935140952] [2021-10-28 09:48:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:41,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,353 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:41,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:41,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-10-28 09:48:41,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:41,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353077505] [2021-10-28 09:48:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:41,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,384 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-10-28 09:48:41,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:41,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156528429] [2021-10-28 09:48:41,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:41,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,429 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:41,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:41,768 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:41,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:41,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:41,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:41,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:41,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:41,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:41,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:41,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration2_Lasso [2021-10-28 09:48:41,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:41,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:41,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,775 INFO 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 09:48:41,776 INFO 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 09:48:41,779 INFO 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 09:48:41,781 INFO 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 09:48:41,786 INFO 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 09:48:41,789 INFO 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 09:48:41,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:41,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:41,973 INFO 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 09:48:41,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:42,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:48:42,225 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:48:42,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,226 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,234 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 09:48:42,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:48:42,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,302 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,311 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 09:48:42,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:48:42,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,374 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:48:42,381 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 09:48:42,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,413 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:48:42,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:48:42,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,451 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:48:42,453 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 09:48:42,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,491 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:48:42,495 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 09:48:42,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,532 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:48:42,536 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 09:48:42,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,569 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:48:42,571 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 09:48:42,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,606 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:48:42,607 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 09:48:42,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,649 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:48:42,653 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 09:48:42,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,689 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:48:42,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:48:42,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,735 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:48:42,740 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 09:48:42,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,776 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:48:42,777 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 09:48:42,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:42,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:42,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:42,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:42,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:48:42,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,812 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:48:42,813 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 09:48:42,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:42,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:42,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:42,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:42,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:42,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:42,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:48:42,881 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-28 09:48:42,882 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 09:48:42,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,885 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:48:42,886 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:48:42,893 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:48:42,894 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:48:42,894 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2021-10-28 09:48:42,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:42,949 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 09:48:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:42,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:48:42,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:43,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:48:43,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:43,018 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 09:48:43,019 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 09:48:43,019 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:43,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 44 transitions. Complement of second has 6 states. [2021-10-28 09:48:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:48:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-28 09:48:43,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 09:48:43,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:43,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-28 09:48:43,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:43,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 09:48:43,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:43,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2021-10-28 09:48:43,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:43,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2021-10-28 09:48:43,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-28 09:48:43,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:48:43,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2021-10-28 09:48:43,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:43,043 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-28 09:48:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2021-10-28 09:48:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-28 09:48:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 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 09:48:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-10-28 09:48:43,046 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-28 09:48:43,046 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-28 09:48:43,046 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:48:43,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2021-10-28 09:48:43,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:43,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:43,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:43,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:43,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:43,048 INFO L791 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 284#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 292#L532 assume !(main_~length1~0 < 1); 285#L532-2 assume !(main_~length2~0 < 1); 281#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 282#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 294#L541-4 main_~i~1 := 0; 288#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 289#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 293#L519-4 [2021-10-28 09:48:43,048 INFO L793 eck$LassoCheckResult]: Loop: 293#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 300#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 296#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 301#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 295#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 286#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 287#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 297#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 293#L519-4 [2021-10-28 09:48:43,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:43,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-10-28 09:48:43,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:43,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936892297] [2021-10-28 09:48:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:43,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:43,085 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:43,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:43,130 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2021-10-28 09:48:43,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:43,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541080278] [2021-10-28 09:48:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:43,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:43,146 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:43,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2021-10-28 09:48:43,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:43,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412570655] [2021-10-28 09:48:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:43,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:43,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:43,435 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 09:48:43,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:43,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412570655] [2021-10-28 09:48:43,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412570655] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:43,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:43,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:48:43,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451379695] [2021-10-28 09:48:43,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:48:43,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:48:43,701 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:43,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:43,947 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2021-10-28 09:48:43,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:48:43,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2021-10-28 09:48:43,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2021-10-28 09:48:43,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 48 states and 64 transitions. [2021-10-28 09:48:43,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-28 09:48:43,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-28 09:48:43,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 64 transitions. [2021-10-28 09:48:43,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:43,951 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-10-28 09:48:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 64 transitions. [2021-10-28 09:48:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2021-10-28 09:48:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 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 09:48:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-10-28 09:48:43,955 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-10-28 09:48:43,956 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-10-28 09:48:43,956 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:48:43,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2021-10-28 09:48:43,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 09:48:43,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:43,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:43,957 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:43,957 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:48:43,957 INFO L791 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 386#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 394#L532 assume !(main_~length1~0 < 1); 387#L532-2 assume !(main_~length2~0 < 1); 383#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 384#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 395#L541-4 main_~i~1 := 0; 390#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 391#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 413#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 412#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 399#L522-5 [2021-10-28 09:48:43,958 INFO L793 eck$LassoCheckResult]: Loop: 399#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 410#L522-1 assume !cstrspn_#t~short7; 411#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 399#L522-5 [2021-10-28 09:48:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:43,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 1 times [2021-10-28 09:48:43,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:43,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892472010] [2021-10-28 09:48:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:43,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:44,087 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 09:48:44,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:44,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892472010] [2021-10-28 09:48:44,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892472010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:44,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:48:44,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905513435] [2021-10-28 09:48:44,088 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:48:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash 86558, now seen corresponding path program 1 times [2021-10-28 09:48:44,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45426459] [2021-10-28 09:48:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:44,099 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 09:48:44,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:44,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45426459] [2021-10-28 09:48:44,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45426459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:44,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:44,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:48:44,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502687676] [2021-10-28 09:48:44,100 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:48:44,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:44,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:48:44,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:48:44,101 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. cyclomatic complexity: 17 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 09:48:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:44,109 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-10-28 09:48:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:48:44,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 44 transitions. [2021-10-28 09:48:44,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 09:48:44,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 44 transitions. [2021-10-28 09:48:44,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-28 09:48:44,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-28 09:48:44,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2021-10-28 09:48:44,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:44,112 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-10-28 09:48:44,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2021-10-28 09:48:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-10-28 09:48:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.34375) internal successors, (43), 31 states have internal predecessors, (43), 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 09:48:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-10-28 09:48:44,115 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-10-28 09:48:44,115 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-10-28 09:48:44,115 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:48:44,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2021-10-28 09:48:44,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 09:48:44,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:44,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:44,116 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,116 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:48:44,116 INFO L791 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 462#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 470#L532 assume !(main_~length1~0 < 1); 463#L532-2 assume !(main_~length2~0 < 1); 459#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 460#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 476#L541-4 main_~i~1 := 0; 488#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 487#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 486#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 485#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 474#L522-5 [2021-10-28 09:48:44,116 INFO L793 eck$LassoCheckResult]: Loop: 474#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 484#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 473#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 474#L522-5 [2021-10-28 09:48:44,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 2 times [2021-10-28 09:48:44,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325741465] [2021-10-28 09:48:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:44,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:44,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325741465] [2021-10-28 09:48:44,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325741465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:44,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:44,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:48:44,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59231871] [2021-10-28 09:48:44,235 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:48:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,236 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2021-10-28 09:48:44,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838842230] [2021-10-28 09:48:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,242 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:44,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:48:44,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:48:44,361 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 16 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:44,453 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-28 09:48:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:48:44,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-10-28 09:48:44,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 09:48:44,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 30 transitions. [2021-10-28 09:48:44,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 09:48:44,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 09:48:44,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-10-28 09:48:44,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:44,455 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-28 09:48:44,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-10-28 09:48:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-28 09:48:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 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 09:48:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-10-28 09:48:44,458 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-28 09:48:44,458 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-28 09:48:44,458 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:48:44,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2021-10-28 09:48:44,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 09:48:44,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:44,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:44,460 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,460 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,460 INFO L791 eck$LassoCheckResult]: Stem: 537#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 538#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 546#L532 assume !(main_~length1~0 < 1); 539#L532-2 assume !(main_~length2~0 < 1); 535#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 536#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 551#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 552#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 547#L541-4 main_~i~1 := 0; 542#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 543#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 548#L519-4 [2021-10-28 09:48:44,460 INFO L793 eck$LassoCheckResult]: Loop: 548#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 553#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 556#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 554#L522-1 assume !cstrspn_#t~short7; 549#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 540#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 541#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 550#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 548#L519-4 [2021-10-28 09:48:44,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-10-28 09:48:44,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385760158] [2021-10-28 09:48:44,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,472 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -903038413, now seen corresponding path program 1 times [2021-10-28 09:48:44,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262259716] [2021-10-28 09:48:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:44,531 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 09:48:44,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:44,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262259716] [2021-10-28 09:48:44,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262259716] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:44,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:44,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:48:44,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446670074] [2021-10-28 09:48:44,533 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:48:44,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:48:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:48:44,536 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 09:48:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:44,616 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-10-28 09:48:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:48:44,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-10-28 09:48:44,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:44,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 23 states and 29 transitions. [2021-10-28 09:48:44,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 09:48:44,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 09:48:44,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2021-10-28 09:48:44,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:44,618 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-10-28 09:48:44,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2021-10-28 09:48:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-28 09:48:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-10-28 09:48:44,621 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-28 09:48:44,621 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-28 09:48:44,621 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:48:44,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2021-10-28 09:48:44,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:44,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:44,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:44,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,623 INFO L791 eck$LassoCheckResult]: Stem: 603#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 604#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 612#L532 assume !(main_~length1~0 < 1); 605#L532-2 assume !(main_~length2~0 < 1); 601#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 602#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 618#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 619#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 614#L541-4 main_~i~1 := 0; 608#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 609#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 613#L519-4 [2021-10-28 09:48:44,623 INFO L793 eck$LassoCheckResult]: Loop: 613#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 620#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 616#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 621#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 615#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 606#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 607#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 617#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 613#L519-4 [2021-10-28 09:48:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2021-10-28 09:48:44,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991470222] [2021-10-28 09:48:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,646 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,646 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2021-10-28 09:48:44,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669828975] [2021-10-28 09:48:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2021-10-28 09:48:44,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577931504] [2021-10-28 09:48:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:48:44,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:44,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577931504] [2021-10-28 09:48:44,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577931504] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:44,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:44,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:48:44,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987683368] [2021-10-28 09:48:45,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:45,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:48:45,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:48:45,044 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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 09:48:45,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:45,196 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-10-28 09:48:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:48:45,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 43 transitions. [2021-10-28 09:48:45,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 09:48:45,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 34 states and 41 transitions. [2021-10-28 09:48:45,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 09:48:45,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 09:48:45,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2021-10-28 09:48:45,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:45,198 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 09:48:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2021-10-28 09:48:45,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-28 09:48:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 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 09:48:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-10-28 09:48:45,200 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-28 09:48:45,200 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-28 09:48:45,200 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:48:45,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2021-10-28 09:48:45,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 09:48:45,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:45,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:45,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:45,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:45,202 INFO L791 eck$LassoCheckResult]: Stem: 685#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 686#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 695#L532 assume !(main_~length1~0 < 1); 687#L532-2 assume !(main_~length2~0 < 1); 683#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 684#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 701#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 702#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 696#L541-4 main_~i~1 := 0; 690#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 691#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 703#L519-4 [2021-10-28 09:48:45,202 INFO L793 eck$LassoCheckResult]: Loop: 703#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 704#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 710#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 709#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 698#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 699#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 715#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 714#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 713#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 712#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 711#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 703#L519-4 [2021-10-28 09:48:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:45,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 3 times [2021-10-28 09:48:45,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:45,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361301311] [2021-10-28 09:48:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:45,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:45,213 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:45,224 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:45,224 INFO L85 PathProgramCache]: Analyzing trace with hash -898285594, now seen corresponding path program 1 times [2021-10-28 09:48:45,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:45,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857657571] [2021-10-28 09:48:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:45,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:45,232 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:45,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:45,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1809250353, now seen corresponding path program 1 times [2021-10-28 09:48:45,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:45,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011826078] [2021-10-28 09:48:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:45,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:48:45,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:45,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011826078] [2021-10-28 09:48:45,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011826078] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:48:45,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580878063] [2021-10-28 09:48:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:45,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:48:45,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:45,353 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:48:45,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 09:48:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:45,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:48:45,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:45,479 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:48:45,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:48:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:48:45,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580878063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:45,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:48:45,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2021-10-28 09:48:45,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410552283] [2021-10-28 09:48:46,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:46,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:48:46,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:48:46,011 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 09:48:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:46,131 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-10-28 09:48:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:48:46,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-28 09:48:46,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:46,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 27 transitions. [2021-10-28 09:48:46,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:48:46,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:48:46,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2021-10-28 09:48:46,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:46,133 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 09:48:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2021-10-28 09:48:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-28 09:48:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 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 09:48:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-10-28 09:48:46,135 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 09:48:46,135 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 09:48:46,135 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:48:46,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-10-28 09:48:46,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 09:48:46,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:46,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:46,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:46,136 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:46,137 INFO L791 eck$LassoCheckResult]: Stem: 840#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 841#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 849#L532 assume !(main_~length1~0 < 1); 842#L532-2 assume !(main_~length2~0 < 1); 838#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 839#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 855#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 856#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 850#L541-4 main_~i~1 := 0; 845#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 846#L546-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 847#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 848#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 851#L519-4 [2021-10-28 09:48:46,137 INFO L793 eck$LassoCheckResult]: Loop: 851#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 857#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 853#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 858#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 852#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 843#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 844#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 854#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 851#L519-4 [2021-10-28 09:48:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-10-28 09:48:46,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412935412] [2021-10-28 09:48:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,147 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,159 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 3 times [2021-10-28 09:48:46,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125636367] [2021-10-28 09:48:46,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,166 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1875279350, now seen corresponding path program 1 times [2021-10-28 09:48:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552823965] [2021-10-28 09:48:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,215 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:47,449 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:47,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:47,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:47,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:47,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:47,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:47,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:47,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:47,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration9_Lasso [2021-10-28 09:48:47,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:47,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:47,454 INFO 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 09:48:47,459 INFO 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 09:48:47,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,465 INFO 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 09:48:47,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,472 INFO 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 09:48:47,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,476 INFO 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 09:48:47,477 INFO 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 09:48:47,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,974 INFO 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 09:48:47,987 INFO 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 09:48:47,989 INFO 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 09:48:47,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:47,995 INFO 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 09:48:47,997 INFO 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 09:48:47,999 INFO 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 09:48:48,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:48,003 INFO 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 09:48:48,005 INFO 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 09:48:48,008 INFO 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 09:48:48,010 INFO 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 09:48:48,012 INFO 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 09:48:48,650 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:48:48,650 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:48:48,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,658 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:48:48,659 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 09:48:48,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:48,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,688 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:48:48,690 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 09:48:48,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:48,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,719 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,720 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 09:48:48,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:48:48,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:48,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,756 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:48:48,760 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 09:48:48,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 09:48:48,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,798 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:48:48,800 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 09:48:48,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:48,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:48,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:48:48,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,838 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:48:48,839 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 09:48:48,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 09:48:48,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,885 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:48:48,886 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 09:48:48,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:48,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,915 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:48:48,916 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 09:48:48,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:48,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,944 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:48:48,945 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 09:48:48,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:48,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:48:48,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:48,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:48,975 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:48,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:48:48,977 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 09:48:48,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:48,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:48,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:48,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:48,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:48,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:48,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:48,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 09:48:49,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,004 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,006 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 09:48:49,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:48:49,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:49,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:49,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:49,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:48:49,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,036 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:48:49,038 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 09:48:49,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:49,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:49,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:49,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:48:49,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,067 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:48:49,068 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 09:48:49,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 09:48:49,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,133 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:48:49,134 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 09:48:49,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 09:48:49,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,183 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:48:49,184 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 09:48:49,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:49,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,244 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:48:49,245 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 09:48:49,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 09:48:49,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,279 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,280 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 09:48:49,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:48:49,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:49,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,314 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:48:49,315 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 09:48:49,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,322 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:48:49,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,333 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:48:49,333 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:48:49,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 09:48:49,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,386 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:48:49,387 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 09:48:49,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:49,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:49,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:49,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 09:48:49,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,416 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:48:49,417 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 09:48:49,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 09:48:49,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,449 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:48:49,450 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 09:48:49,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:49,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:49,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,485 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:48:49,486 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 09:48:49,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:49,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:49,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:49,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:49,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:49,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:49,538 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:48:49,564 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 09:48:49,564 INFO L444 ModelExtractionUtils]: 27 out of 58 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-10-28 09:48:49,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:49,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:49,565 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:49,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:48:49,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:48:49,575 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:48:49,576 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:48:49,576 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2) = -1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 Supporting invariants [] [2021-10-28 09:48:49,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:49,673 INFO L297 tatePredicateManager]: 15 out of 17 supporting invariants were superfluous and have been removed [2021-10-28 09:48:49,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:49,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:48:49,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:49,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:48:49,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:49,926 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 09:48:49,927 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:48:49,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 09:48:49,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 29 states and 36 transitions. Complement of second has 5 states. [2021-10-28 09:48:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:48:49,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 09:48:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2021-10-28 09:48:49,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 8 letters. [2021-10-28 09:48:49,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:49,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 21 letters. Loop has 8 letters. [2021-10-28 09:48:49,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:49,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 16 letters. [2021-10-28 09:48:49,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:49,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-28 09:48:49,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:49,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 33 transitions. [2021-10-28 09:48:49,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 09:48:49,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 09:48:49,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2021-10-28 09:48:49,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:48:49,971 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-28 09:48:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2021-10-28 09:48:49,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 09:48:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 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 09:48:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-10-28 09:48:49,973 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-28 09:48:49,973 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-28 09:48:49,973 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:48:49,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2021-10-28 09:48:49,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:49,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:49,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:49,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:49,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:48:49,974 INFO L791 eck$LassoCheckResult]: Stem: 1049#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1050#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1058#L532 assume !(main_~length1~0 < 1); 1051#L532-2 assume !(main_~length2~0 < 1); 1047#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1048#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1067#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1068#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1059#L541-4 main_~i~1 := 0; 1054#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1055#L546-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1056#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 1057#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 1060#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 1070#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 1062#L522-5 [2021-10-28 09:48:49,974 INFO L793 eck$LassoCheckResult]: Loop: 1062#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 1071#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 1061#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 1062#L522-5 [2021-10-28 09:48:49,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:49,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2021-10-28 09:48:49,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:49,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927188178] [2021-10-28 09:48:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:49,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,040 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:50,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:50,069 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2021-10-28 09:48:50,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:50,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923477091] [2021-10-28 09:48:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:50,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:50,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,083 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2021-10-28 09:48:50,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:50,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797284648] [2021-10-28 09:48:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:50,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,123 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:50,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:51,499 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:51,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:51,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:51,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:51,500 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:51,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:51,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:51,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:51,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration10_Lasso [2021-10-28 09:48:51,500 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:51,500 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:51,504 INFO 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 09:48:51,518 INFO 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 09:48:51,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,523 INFO 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 09:48:51,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,527 INFO 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 09:48:51,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,535 INFO 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 09:48:51,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,539 INFO 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 09:48:51,540 INFO 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 09:48:51,542 INFO 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 09:48:51,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:51,546 INFO 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 09:48:52,126 INFO 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 09:48:52,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:52,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:52,130 INFO 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 09:48:52,132 INFO 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 09:48:52,142 INFO 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 09:48:52,143 INFO 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 09:48:52,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:52,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:52,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:52,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:48:52,867 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:48:52,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:52,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:52,877 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:52,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:48:52,878 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 09:48:52,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:52,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:52,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:52,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:52,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:52,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:52,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:52,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:52,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:52,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:52,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:52,906 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:52,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:48:52,907 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 09:48:52,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:52,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:52,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:52,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:52,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:52,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:52,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:52,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:52,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 09:48:52,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:52,936 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:52,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:48:52,937 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 09:48:52,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:52,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:52,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:52,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:52,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:52,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:52,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:52,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:52,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:52,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:52,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:52,967 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:52,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:48:52,968 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 09:48:52,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:52,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:52,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:52,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:52,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:52,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:52,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:52,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:52,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:52,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:52,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:52,998 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:52,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:48:52,999 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 09:48:53,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:53,007 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:53,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 09:48:53,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,029 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:48:53,030 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 09:48:53,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,058 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:48:53,059 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 09:48:53,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,088 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:48:53,089 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 09:48:53,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 09:48:53,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,117 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:48:53,119 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 09:48:53,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 09:48:53,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,148 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:48:53,149 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 09:48:53,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:53,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:53,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,180 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:48:53,181 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 09:48:53,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 09:48:53,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,233 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 09:48:53,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:48:53,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,308 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 09:48:53,311 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 09:48:53,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,373 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 09:48:53,374 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 09:48:53,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:53,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:53,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,404 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 09:48:53,406 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 09:48:53,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:48:53,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:48:53,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:48:53,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:48:53,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 09:48:53,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,433 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 09:48:53,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:48:53,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:48:53,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:48:53,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:48:53,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:48:53,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:48:53,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:48:53,481 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:48:53,507 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-28 09:48:53,507 INFO L444 ModelExtractionUtils]: 20 out of 55 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-28 09:48:53,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:53,508 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:53,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 09:48:53,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:48:53,517 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:48:53,517 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:48:53,517 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2021-10-28 09:48:53,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:53,601 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2021-10-28 09:48:53,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:53,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:48:53,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:53,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:48:53,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:53,748 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 09:48:53,749 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:48:53,749 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 09:48:53,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) Result 51 states and 61 transitions. Complement of second has 6 states. [2021-10-28 09:48:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:48:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 09:48:53,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-28 09:48:53,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 09:48:53,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:53,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-28 09:48:53,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:53,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-28 09:48:53,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:48:53,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 61 transitions. [2021-10-28 09:48:53,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:53,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 46 transitions. [2021-10-28 09:48:53,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 09:48:53,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 09:48:53,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2021-10-28 09:48:53,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:48:53,805 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-10-28 09:48:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2021-10-28 09:48:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-10-28 09:48:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.21875) internal successors, (39), 31 states have internal predecessors, (39), 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 09:48:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-10-28 09:48:53,821 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-28 09:48:53,821 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-28 09:48:53,821 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 09:48:53,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2021-10-28 09:48:53,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:53,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:53,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:53,823 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:53,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:48:53,825 INFO L791 eck$LassoCheckResult]: Stem: 1313#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1314#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1322#L532 assume !(main_~length1~0 < 1); 1315#L532-2 assume !(main_~length2~0 < 1); 1311#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1312#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1331#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1332#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1323#L541-4 main_~i~1 := 0; 1318#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1319#L546-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1320#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 1321#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 1324#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 1333#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 1328#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 1342#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 1340#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 1316#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 1317#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 1329#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 1330#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 1335#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 1326#L522-5 [2021-10-28 09:48:53,826 INFO L793 eck$LassoCheckResult]: Loop: 1326#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 1336#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 1325#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 1326#L522-5 [2021-10-28 09:48:53,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1742810479, now seen corresponding path program 2 times [2021-10-28 09:48:53,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:53,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720232155] [2021-10-28 09:48:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:53,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:48:54,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:54,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720232155] [2021-10-28 09:48:54,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720232155] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:48:54,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026302720] [2021-10-28 09:48:54,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:48:54,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:48:54,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:54,059 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:48:54,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-28 09:48:54,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:48:54,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:48:54,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 09:48:54,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:54,195 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:48:54,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:48:54,532 INFO L354 Elim1Store]: treesize reduction 42, result has 19.2 percent of original size [2021-10-28 09:48:54,533 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 1 case distinctions, treesize of input 55 treesize of output 39 [2021-10-28 09:48:54,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-28 09:48:55,232 INFO L354 Elim1Store]: treesize reduction 44, result has 6.4 percent of original size [2021-10-28 09:48:55,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2021-10-28 09:48:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:55,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026302720] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:48:55,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:48:55,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 19 [2021-10-28 09:48:55,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2379773] [2021-10-28 09:48:55,263 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:48:55,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2021-10-28 09:48:55,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:55,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131318926] [2021-10-28 09:48:55,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:55,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:55,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:55,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:55,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:55,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:48:55,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:48:55,384 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 20 states have internal predecessors, (42), 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 09:48:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:56,239 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2021-10-28 09:48:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:48:56,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 80 transitions. [2021-10-28 09:48:56,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:56,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 35 states and 42 transitions. [2021-10-28 09:48:56,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 09:48:56,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 09:48:56,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2021-10-28 09:48:56,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:48:56,245 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-28 09:48:56,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2021-10-28 09:48:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-10-28 09:48:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 states have internal predecessors, (41), 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 09:48:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-10-28 09:48:56,249 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 09:48:56,249 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 09:48:56,249 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 09:48:56,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2021-10-28 09:48:56,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:48:56,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:56,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:56,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:56,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:48:56,252 INFO L791 eck$LassoCheckResult]: Stem: 1530#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1531#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1539#L532 assume !(main_~length1~0 < 1); 1532#L532-2 assume !(main_~length2~0 < 1); 1528#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1529#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1548#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1549#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1550#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1560#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1541#L541-4 main_~i~1 := 0; 1535#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1536#L546-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1537#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 1538#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 1540#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 1551#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 1545#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 1555#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 1556#L522-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7; 1533#L522-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 1534#L524 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 1546#L519-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 1547#L519-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 1553#L519-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 1543#L522-5 [2021-10-28 09:48:56,252 INFO L793 eck$LassoCheckResult]: Loop: 1543#L522-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 1554#L522-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 1542#L522-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~mem6;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 1543#L522-5 [2021-10-28 09:48:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1365761455, now seen corresponding path program 3 times [2021-10-28 09:48:56,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:56,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294489166] [2021-10-28 09:48:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:56,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,281 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:56,307 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2021-10-28 09:48:56,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:56,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393547233] [2021-10-28 09:48:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:56,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:56,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1174254192, now seen corresponding path program 1 times [2021-10-28 09:48:56,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:56,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854577081] [2021-10-28 09:48:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:56,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,341 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:56,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:59,293 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:59,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:59,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:59,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:59,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:59,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:59,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:59,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:59,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration12_Lasso [2021-10-28 09:48:59,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:59,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:59,298 INFO 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 09:48:59,311 INFO 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 09:48:59,313 INFO 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 09:48:59,314 INFO 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 09:48:59,317 INFO 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 09:48:59,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:59,322 INFO 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 09:48:59,324 INFO 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 09:48:59,326 INFO 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 09:48:59,328 INFO 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 09:48:59,330 INFO 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 09:48:59,331 INFO 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 09:48:59,333 INFO 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 09:48:59,335 INFO 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 09:48:59,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:59,338 INFO 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 09:48:59,340 INFO 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 09:48:59,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:00,930 INFO 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 09:49:00,932 INFO 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 09:49:00,934 INFO 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 09:49:00,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:00,938 INFO 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 09:49:00,940 INFO 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 09:49:00,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:02,073 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:49:02,073 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:49:02,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,077 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 09:49:02,081 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 09:49:02,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,109 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 09:49:02,110 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 09:49:02,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 09:49:02,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,141 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 09:49:02,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:49:02,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,170 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 09:49:02,171 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 09:49:02,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:02,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:02,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,201 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 09:49:02,202 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 09:49:02,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,230 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 09:49:02,232 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 09:49:02,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 09:49:02,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,261 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 09:49:02,267 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 09:49:02,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 09:49:02,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,299 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 09:49:02,300 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 09:49:02,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:02,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:02,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,331 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 09:49:02,335 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 09:49:02,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,363 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 09:49:02,364 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 09:49:02,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,391 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 09:49:02,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:49:02,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,420 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 09:49:02,421 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 09:49:02,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 09:49:02,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,449 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 09:49:02,450 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 09:49:02,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 09:49:02,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,477 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 09:49:02,478 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 09:49:02,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-28 09:49:02,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,505 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 09:49:02,506 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 09:49:02,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-28 09:49:02,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,534 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 09:49:02,535 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 09:49:02,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 09:49:02,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,564 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 09:49:02,565 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 09:49:02,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:02,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:02,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:02,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,592 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 09:49:02,593 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 09:49:02,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:02,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:02,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-28 09:49:02,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,623 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 09:49:02,624 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 09:49:02,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:02,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:02,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:02,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:02,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:02,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:02,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:02,658 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:02,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 09:49:02,660 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 09:49:02,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:02,667 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 09:49:02,667 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-10-28 09:49:02,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:02,747 INFO L401 nArgumentSynthesizer]: We have 132 Motzkin's Theorem applications. [2021-10-28 09:49:02,748 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-10-28 09:49:02,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:03,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:03,002 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:03,005 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 09:49:03,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:03,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:03,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:03,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:03,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:03,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:03,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 09:49:03,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:03,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:03,093 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:03,095 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 09:49:03,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:03,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:03,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:03,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:03,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:03,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:03,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 09:49:03,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:03,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:03,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:03,150 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:03,151 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 09:49:03,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:03,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:03,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:03,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:03,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:03,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:03,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 09:49:03,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:03,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:03,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:03,207 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:03,213 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 09:49:03,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:03,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:03,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:03,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:03,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:03,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:03,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 09:49:03,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:49:03,340 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-10-28 09:49:03,340 INFO L444 ModelExtractionUtils]: 9 out of 67 variables were initially zero. Simplification set additionally 55 variables to zero. [2021-10-28 09:49:03,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:03,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:03,342 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:03,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:49:03,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 09:49:03,373 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:49:03,374 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:49:03,374 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3) = -1*ULTIMATE.start_cstrspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3 Supporting invariants [] [2021-10-28 09:49:03,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,520 INFO L297 tatePredicateManager]: 32 out of 34 supporting invariants were superfluous and have been removed [2021-10-28 09:49:03,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:03,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:49:03,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:03,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:49:03,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:03,734 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 09:49:03,734 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:49:03,734 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:03,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 50 states and 58 transitions. Complement of second has 6 states. [2021-10-28 09:49:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:49:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:03,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-28 09:49:03,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-28 09:49:03,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:03,781 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:49:03,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:03,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:49:03,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:03,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:49:03,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:04,004 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 09:49:04,005 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:49:04,005 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:04,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 50 states and 58 transitions. Complement of second has 6 states. [2021-10-28 09:49:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:49:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-28 09:49:04,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-28 09:49:04,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:04,044 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:49:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:04,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:49:04,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:04,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:49:04,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:04,267 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 09:49:04,268 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:49:04,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:04,325 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 49 states and 58 transitions. Complement of second has 5 states. [2021-10-28 09:49:04,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:49:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 09:49:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2021-10-28 09:49:04,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-28 09:49:04,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:04,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 28 letters. Loop has 3 letters. [2021-10-28 09:49:04,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:04,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 25 letters. Loop has 6 letters. [2021-10-28 09:49:04,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:04,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2021-10-28 09:49:04,328 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:49:04,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2021-10-28 09:49:04,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:49:04,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:49:04,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:49:04,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:49:04,329 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:04,329 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:04,329 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:04,329 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 09:49:04,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:49:04,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:49:04,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:49:04,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:49:04 BoogieIcfgContainer [2021-10-28 09:49:04,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:49:04,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:49:04,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:49:04,336 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:49:04,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:38" (3/4) ... [2021-10-28 09:49:04,338 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:49:04,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:49:04,339 INFO L168 Benchmark]: Toolchain (without parser) took 26536.30 ms. Allocated memory was 111.1 MB in the beginning and 201.3 MB in the end (delta: 90.2 MB). Free memory was 77.9 MB in the beginning and 59.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 108.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,339 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:04,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.24 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 79.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.13 ms. Allocated memory is still 111.1 MB. Free memory was 79.1 MB in the beginning and 77.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,340 INFO L168 Benchmark]: Boogie Preprocessor took 40.09 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,341 INFO L168 Benchmark]: RCFGBuilder took 491.50 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 63.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,341 INFO L168 Benchmark]: BuchiAutomizer took 25411.14 ms. Allocated memory was 111.1 MB in the beginning and 201.3 MB in the end (delta: 90.2 MB). Free memory was 63.9 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:04,342 INFO L168 Benchmark]: Witness Printer took 3.03 ms. Allocated memory is still 201.3 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:04,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.24 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 79.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.13 ms. Allocated memory is still 111.1 MB. Free memory was 79.1 MB in the beginning and 77.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.09 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 491.50 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 63.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 25411.14 ms. Allocated memory was 111.1 MB in the beginning and 201.3 MB in the end (delta: 90.2 MB). Free memory was 63.9 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.03 ms. Allocated memory is still 201.3 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (7 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * sc1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString2] and consists of 4 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString2] and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.3s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 21.9s. Construction of modules took 0.6s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 29 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 34 states and ocurred in iteration 11. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 529 SDslu, 622 SDs, 0 SdLazy, 726 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI1 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital308 mio100 ax108 hnf99 lsp91 ukn71 mio100 lsp44 div102 bol100 ite100 ukn100 eq178 hnf90 smp96 dnf313 smp60 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 306ms VariablesStem: 8 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 132 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 09:49:04,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:04,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-10-28 09:49:04,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-28 09:49:04,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_924d300c-859b-42bb-94dc-49404629f7e4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...