./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/count_by_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/count_by_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 490e26872e4d657862c7b215f56fb6c391045902 ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:56:54,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:56:54,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:56:54,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:56:54,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:56:54,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:56:54,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:56:54,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:56:54,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:56:54,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:56:54,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:56:54,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:56:54,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:56:54,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:56:54,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:56:54,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:56:54,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:56:54,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:56:54,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:56:54,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:56:54,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:56:54,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:56:54,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:56:54,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:56:54,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:56:54,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:56:54,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:56:54,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:56:54,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:56:54,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:56:54,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:56:54,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:56:54,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:56:54,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:56:54,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:56:54,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:56:54,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:56:54,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:56:54,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:56:54,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:56:54,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:56:54,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:56:54,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:56:54,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:56:54,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:56:54,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:56:54,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:56:54,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:56:54,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:56:54,537 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:56:54,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:56:54,537 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:56:54,538 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:56:54,539 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:56:54,539 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:56:54,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:56:54,539 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:56:54,540 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:56:54,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:56:54,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:56:54,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:56:54,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:56:54,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:56:54,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:56:54,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:56:54,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:56:54,542 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:56:54,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:56:54,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:56:54,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:56:54,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:56:54,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:56:54,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:56:54,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:56:54,551 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:56:54,551 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_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 490e26872e4d657862c7b215f56fb6c391045902 [2021-10-13 00:56:54,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:56:54,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:56:54,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:56:54,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:56:54,880 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:56:54,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-new/count_by_1.i [2021-10-13 00:56:54,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/data/86d584031/c5730ef2d19f4ad492278928c6ac5ea9/FLAGd8a2d7fca [2021-10-13 00:56:55,451 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:56:55,451 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/sv-benchmarks/c/loop-new/count_by_1.i [2021-10-13 00:56:55,466 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/data/86d584031/c5730ef2d19f4ad492278928c6ac5ea9/FLAGd8a2d7fca [2021-10-13 00:56:55,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/data/86d584031/c5730ef2d19f4ad492278928c6ac5ea9 [2021-10-13 00:56:55,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:56:55,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:56:55,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:55,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:56:55,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:56:55,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:55" (1/1) ... [2021-10-13 00:56:55,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412331ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:55, skipping insertion in model container [2021-10-13 00:56:55,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:55" (1/1) ... [2021-10-13 00:56:55,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:56:55,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:56:55,980 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_6925d6a1-0d66-430d-987e-58022d6f2e11/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2021-10-13 00:56:55,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:55,995 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:56:56,006 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_6925d6a1-0d66-430d-987e-58022d6f2e11/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2021-10-13 00:56:56,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:56,046 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:56:56,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56 WrapperNode [2021-10-13 00:56:56,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:56,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:56,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:56:56,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:56:56,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:56,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:56:56,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:56:56,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:56:56,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:56:56,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:56:56,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:56:56,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:56:56,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (1/1) ... [2021-10-13 00:56:56,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:56,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:56,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:56,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:56:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:56:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:56:56,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:56:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:56:56,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:56:56,454 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:56:56,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:56 BoogieIcfgContainer [2021-10-13 00:56:56,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:56:56,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:56:56,463 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:56:56,467 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:56:56,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:56:56,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:56:55" (1/3) ... [2021-10-13 00:56:56,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c00f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:56:56, skipping insertion in model container [2021-10-13 00:56:56,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:56:56,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:56" (2/3) ... [2021-10-13 00:56:56,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c00f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:56:56, skipping insertion in model container [2021-10-13 00:56:56,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:56:56,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:56" (3/3) ... [2021-10-13 00:56:56,473 INFO L389 chiAutomizerObserver]: Analyzing ICFG count_by_1.i [2021-10-13 00:56:56,539 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:56:56,539 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:56:56,539 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:56:56,539 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:56:56,539 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:56:56,540 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:56:56,540 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:56:56,540 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:56:56,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:56:56,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:56:56,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:56:56,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:56:56,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:56:56,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:56:56,596 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:56:56,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:56:56,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:56:56,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:56:56,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:56:56,599 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:56:56,599 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:56:56,607 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0;havoc main_~i~0;main_~i~0 := 0; 12#L26-3true [2021-10-13 00:56:56,607 INFO L793 eck$LassoCheckResult]: Loop: 12#L26-3true assume !!(main_~i~0 < 1000000); 8#L26-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12#L26-3true [2021-10-13 00:56:56,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:56,616 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:56:56,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:56,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966700225] [2021-10-13 00:56:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:56,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,751 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:56:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:56:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:56,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-13 00:56:56,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:56,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450895353] [2021-10-13 00:56:56,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:56,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,822 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:56:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:56:56,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:56,839 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-13 00:56:56,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:56,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112372715] [2021-10-13 00:56:56,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:56,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,869 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:56:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:56,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:56:57,034 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:56:57,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:56:57,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:56:57,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:56:57,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:56:57,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,045 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:56:57,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:56:57,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1.i_Iteration1_Loop [2021-10-13 00:56:57,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:56:57,046 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:56:57,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:56:57,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:56:57,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:56:57,121 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:56:57,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:57,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:57,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:56:57,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:56:57,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:56:57,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-13 00:56:57,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:57,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:57,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:56:57,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:56:57,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:56:57,285 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:56:57,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:56:57,293 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:56:57,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:56:57,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:56:57,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:56:57,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:56:57,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:56:57,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:56:57,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1.i_Iteration1_Loop [2021-10-13 00:56:57,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:56:57,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:56:57,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:56:57,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:56:57,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:56:57,352 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:56:57,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:57,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:57,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:56:57,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:56:57,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:56:57,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:56:57,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:56:57,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:56:57,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:56:57,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:56:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:56:57,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:56:57,407 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:56:57,407 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:56:57,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:56:57,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:57,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:57,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:56:57,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:56:57,413 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:56:57,414 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1999999 Supporting invariants [] [2021-10-13 00:56:57,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:56:57,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:56:57,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:56:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:56:57,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:56:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:57,566 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:56:57,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:56:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:57,630 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:56:57,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:56:57,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 27 states and 33 transitions. Complement of second has 7 states. [2021-10-13 00:56:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:56:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:56:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-13 00:56:57,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:56:57,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:56:57,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:56:57,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:56:57,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 00:56:57,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:56:57,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-13 00:56:57,763 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:56:57,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-13 00:56:57,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:56:57,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:56:57,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:56:57,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:56:57,776 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:56:57,776 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:56:57,777 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:56:57,777 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:56:57,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:56:57,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:56:57,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:56:57,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:56:57 BoogieIcfgContainer [2021-10-13 00:56:57,783 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:56:57,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:56:57,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:56:57,784 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:56:57,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:56" (3/4) ... [2021-10-13 00:56:57,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:56:57,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:56:57,790 INFO L168 Benchmark]: Toolchain (without parser) took 1965.01 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 60.5 MB in the beginning and 86.3 MB in the end (delta: -25.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:57,791 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 77.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:57,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.66 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 60.3 MB in the beginning and 110.8 MB in the end (delta: -50.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:57,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.72 ms. Allocated memory is still 132.1 MB. Free memory was 110.8 MB in the beginning and 109.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:57,793 INFO L168 Benchmark]: Boogie Preprocessor took 36.95 ms. Allocated memory is still 132.1 MB. Free memory was 109.4 MB in the beginning and 109.9 MB in the end (delta: -507.4 kB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:57,794 INFO L168 Benchmark]: RCFGBuilder took 342.02 ms. Allocated memory is still 132.1 MB. Free memory was 109.9 MB in the beginning and 101.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:57,802 INFO L168 Benchmark]: BuchiAutomizer took 1320.52 ms. Allocated memory is still 132.1 MB. Free memory was 100.4 MB in the beginning and 86.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:57,803 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 132.1 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:57,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 77.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.66 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 60.3 MB in the beginning and 110.8 MB in the end (delta: -50.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.72 ms. Allocated memory is still 132.1 MB. Free memory was 110.8 MB in the beginning and 109.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.95 ms. Allocated memory is still 132.1 MB. Free memory was 109.4 MB in the beginning and 109.9 MB in the end (delta: -507.4 kB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 342.02 ms. Allocated memory is still 132.1 MB. Free memory was 109.9 MB in the beginning and 101.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1320.52 ms. Allocated memory is still 132.1 MB. Free memory was 100.4 MB in the beginning and 86.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.31 ms. Allocated memory is still 132.1 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 1999999 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: 7 SDtfs, 9 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 59ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:56:57,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:56:58,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6925d6a1-0d66-430d-987e-58022d6f2e11/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...