./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_25x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_25x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3 --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 2d8f12063511b3e3f39f22e34c8c81c8d42f35e2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:27:53,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:27:53,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:27:53,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:27:53,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:27:53,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:27:53,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:27:53,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:27:53,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:27:53,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:27:53,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:27:53,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:27:53,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:27:53,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:27:53,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:27:53,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:27:53,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:27:53,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:27:53,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:27:53,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:27:53,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:27:53,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:27:53,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:27:53,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:27:53,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:27:53,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:27:53,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:27:53,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:27:53,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:27:53,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:27:53,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:27:53,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:27:53,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:27:53,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:27:53,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:27:53,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:27:53,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:27:53,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:27:53,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:27:53,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:27:53,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:27:53,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:27:53,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:27:53,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:27:53,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:27:53,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:27:53,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:27:53,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:27:53,478 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:27:53,479 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:27:53,479 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:27:53,479 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:27:53,480 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:27:53,480 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:27:53,481 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:27:53,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:27:53,481 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:27:53,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:27:53,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:27:53,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:27:53,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:27:53,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:27:53,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:27:53,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:27:53,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:27:53,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:27:53,484 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:27:53,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:27:53,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:27:53,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:27:53,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:27:53,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:27:53,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:27:53,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:27:53,487 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:27:53,487 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_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d8f12063511b3e3f39f22e34c8c81c8d42f35e2 [2021-10-15 19:27:53,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:27:53,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:27:53,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:27:53,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:27:53,799 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:27:53,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/recursive-simple/sum_25x0-2.c [2021-10-15 19:27:53,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/data/cb9230454/06b48ab6dc4746149e63675aefda1255/FLAGe3b0afe9e [2021-10-15 19:27:54,294 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:27:54,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/sv-benchmarks/c/recursive-simple/sum_25x0-2.c [2021-10-15 19:27:54,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/data/cb9230454/06b48ab6dc4746149e63675aefda1255/FLAGe3b0afe9e [2021-10-15 19:27:54,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/data/cb9230454/06b48ab6dc4746149e63675aefda1255 [2021-10-15 19:27:54,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:27:54,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:27:54,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:27:54,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:27:54,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:27:54,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:54,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1732197b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54, skipping insertion in model container [2021-10-15 19:27:54,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:54,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:27:54,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:27:54,945 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/sv-benchmarks/c/recursive-simple/sum_25x0-2.c[481,494] [2021-10-15 19:27:54,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:27:54,956 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:27:54,969 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/sv-benchmarks/c/recursive-simple/sum_25x0-2.c[481,494] [2021-10-15 19:27:54,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:27:54,983 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:27:54,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54 WrapperNode [2021-10-15 19:27:54,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:27:54,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:27:54,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:27:54,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:27:54,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:54,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:27:55,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:27:55,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:27:55,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:27:55,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:27:55,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:27:55,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:27:55,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:27:55,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (1/1) ... [2021-10-15 19:27:55,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:55,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:55,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:55,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:27:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:27:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:27:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-15 19:27:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-15 19:27:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:27:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:27:55,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:27:55,319 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 19:27:55,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:27:55 BoogieIcfgContainer [2021-10-15 19:27:55,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:27:55,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:27:55,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:27:55,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:27:55,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:27:55,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:27:54" (1/3) ... [2021-10-15 19:27:55,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18f74356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:27:55, skipping insertion in model container [2021-10-15 19:27:55,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:27:55,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:27:54" (2/3) ... [2021-10-15 19:27:55,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18f74356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:27:55, skipping insertion in model container [2021-10-15 19:27:55,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:27:55,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:27:55" (3/3) ... [2021-10-15 19:27:55,339 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_25x0-2.c [2021-10-15 19:27:55,385 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:27:55,385 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:27:55,385 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:27:55,385 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:27:55,386 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:27:55,386 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:27:55,386 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:27:55,386 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:27:55,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-15 19:27:55,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:27:55,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:27:55,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:27:55,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:27:55,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:27:55,429 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:27:55,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-15 19:27:55,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:27:55,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:27:55,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:27:55,433 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:27:55,433 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:27:55,440 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 25;main_~b~0 := 0; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-10-15 19:27:55,440 INFO L793 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-10-15 19:27:55,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:27:55,446 INFO L82 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-15 19:27:55,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:27:55,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074367301] [2021-10-15 19:27:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:27:55,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:27:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,557 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:27:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,600 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:27:55,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:27:55,604 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-15 19:27:55,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:27:55,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156510376] [2021-10-15 19:27:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:27:55,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:27:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:27:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,621 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:27:55,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:27:55,624 INFO L82 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-15 19:27:55,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:27:55,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625376254] [2021-10-15 19:27:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:27:55,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:27:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,659 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:27:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:27:55,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:27:55,858 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:27:55,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:27:55,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:27:55,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:27:55,859 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:27:55,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:55,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:27:55,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:27:55,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_25x0-2.c_Iteration1_Loop [2021-10-15 19:27:55,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:27:55,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:27:55,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:55,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:27:55,971 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:27:55,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:55,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:55,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:55,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:27:55,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:27:55,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:27:56,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:27:56,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:27:56,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:27:56,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:27:56,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:27:56,090 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:27:56,090 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:27:56,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:27:56,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:27:56,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:27:56,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:27:56,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:27:56,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:27:56,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:27:56,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:27:56,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:27:56,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:27:56,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:27:56,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:27:56,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,295 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:27:56,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:27:56,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:27:56,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:27:56,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:27:56,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:27:56,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:27:56,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_25x0-2.c_Iteration1_Loop [2021-10-15 19:27:56,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:27:56,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:27:56,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:27:56,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:27:56,374 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:27:56,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,388 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 [2021-10-15 19:27:56,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:27:56,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:27:56,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:27:56,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:27:56,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:27:56,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:27:56,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:27:56,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:27:56,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:27:56,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:27:56,469 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 [2021-10-15 19:27:56,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:27:56,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:27:56,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:27:56,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:27:56,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:27:56,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:27:56,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:27:56,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:27:56,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:27:56,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:27:56,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:27:56,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:27:56,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:27:56,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:27:56,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:27:56,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:27:56,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:27:56,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:27:56,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,572 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,589 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 [2021-10-15 19:27:56,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:27:56,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:27:56,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:27:56,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:27:56,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:27:56,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:27:56,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:27:56,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:27:56,624 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:27:56,641 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 19:27:56,641 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 19:27:56,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:27:56,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:27:56,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:27:56,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:27:56,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:27:56,680 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:27:56,680 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:27:56,681 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-10-15 19:27:56,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:56,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:27:56,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:27:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:27:56,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:27:56,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:27:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:27:56,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:27:56,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:27:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:27:56,889 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-15 19:27:56,891 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:27:56,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states. [2021-10-15 19:27:56,970 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 [2021-10-15 19:27:56,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:27:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-15 19:27:56,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-15 19:27:56,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:27:56,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-15 19:27:56,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:27:56,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-15 19:27:56,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:27:56,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-15 19:27:56,981 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:27:56,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-15 19:27:56,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:27:56,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:27:56,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:27:56,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:27:56,986 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:27:56,986 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:27:56,986 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:27:56,986 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:27:56,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:27:56,986 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:27:56,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:27:56,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:27:56 BoogieIcfgContainer [2021-10-15 19:27:56,992 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:27:56,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:27:56,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:27:56,993 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:27:56,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:27:55" (3/4) ... [2021-10-15 19:27:56,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:27:56,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:27:56,998 INFO L168 Benchmark]: Toolchain (without parser) took 2261.73 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.8 MB in the beginning and 58.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:27:56,999 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 63.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:27:57,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.84 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 80.2 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:27:57,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.29 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:27:57,001 INFO L168 Benchmark]: Boogie Preprocessor took 17.87 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.7 MB in the end (delta: 799.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:27:57,002 INFO L168 Benchmark]: RCFGBuilder took 290.22 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 68.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:27:57,003 INFO L168 Benchmark]: BuchiAutomizer took 1669.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 59.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:27:57,003 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 104.9 MB. Free memory was 59.5 MB in the beginning and 58.9 MB in the end (delta: 594.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:27:57,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 63.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.84 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 80.2 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.29 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.87 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.7 MB in the end (delta: 799.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 290.22 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 68.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1669.70 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 59.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.17 ms. Allocated memory is still 104.9 MB. Free memory was 59.5 MB in the beginning and 58.9 MB in the end (delta: 594.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:27:57,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:27:57,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3214a3b0-5dab-4faf-8a6d-84f20e99e801/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...