./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/up.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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/up.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/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 2ec746919163fb64fe8581d081d736abd4de9151 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:21:01,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:21:01,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:21:01,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:21:01,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:21:01,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:21:01,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:21:01,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:21:01,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:21:01,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:21:01,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:21:01,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:21:01,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:21:01,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:21:01,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:21:01,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:21:01,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:21:01,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:21:01,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:21:01,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:21:01,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:21:01,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:21:01,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:21:01,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:21:01,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:21:01,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:21:01,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:21:01,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:21:01,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:21:01,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:21:01,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:21:01,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:21:01,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:21:01,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:21:01,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:21:01,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:21:01,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:21:01,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:21:01,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:21:01,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:21:01,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:21:01,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:21:01,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:21:01,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:21:01,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:21:01,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:21:01,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:21:01,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:21:01,276 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:21:01,276 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:21:01,276 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:21:01,277 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:21:01,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:21:01,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:21:01,277 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:21:01,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:21:01,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:21:01,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:21:01,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:21:01,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:21:01,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:21:01,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:21:01,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:21:01,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:21:01,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:21:01,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:21:01,280 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:21:01,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:21:01,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:21:01,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:21:01,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:21:01,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:21:01,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:21:01,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:21:01,283 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:21:01,283 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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ec746919163fb64fe8581d081d736abd4de9151 [2021-10-13 01:21:01,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:21:01,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:21:01,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:21:01,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:21:01,562 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:21:01,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-invgen/up.i [2021-10-13 01:21:01,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/data/f9e3adbfd/8689afa452f54646b9c8fb3357774e72/FLAG1318bf3c0 [2021-10-13 01:21:02,033 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:21:02,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/sv-benchmarks/c/loop-invgen/up.i [2021-10-13 01:21:02,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/data/f9e3adbfd/8689afa452f54646b9c8fb3357774e72/FLAG1318bf3c0 [2021-10-13 01:21:02,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/data/f9e3adbfd/8689afa452f54646b9c8fb3357774e72 [2021-10-13 01:21:02,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:21:02,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:21:02,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:21:02,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:21:02,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:21:02,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@686b62c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02, skipping insertion in model container [2021-10-13 01:21:02,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:21:02,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:21:02,642 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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/sv-benchmarks/c/loop-invgen/up.i[893,906] [2021-10-13 01:21:02,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:21:02,666 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:21:02,678 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_5482c7c8-ad77-4fa3-b894-2e3e41ced909/sv-benchmarks/c/loop-invgen/up.i[893,906] [2021-10-13 01:21:02,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:21:02,695 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:21:02,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02 WrapperNode [2021-10-13 01:21:02,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:21:02,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:21:02,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:21:02,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:21:02,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:21:02,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:21:02,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:21:02,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:21:02,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:21:02,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:21:02,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:21:02,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:21:02,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (1/1) ... [2021-10-13 01:21:02,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:02,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:02,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:21:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:21:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:21:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:21:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:21:03,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:21:03,064 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 01:21:03,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:03 BoogieIcfgContainer [2021-10-13 01:21:03,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:21:03,067 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:21:03,067 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:21:03,071 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:21:03,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:21:03,073 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:21:02" (1/3) ... [2021-10-13 01:21:03,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2188b9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:21:03, skipping insertion in model container [2021-10-13 01:21:03,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:21:03,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:21:02" (2/3) ... [2021-10-13 01:21:03,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2188b9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:21:03, skipping insertion in model container [2021-10-13 01:21:03,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:21:03,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:03" (3/3) ... [2021-10-13 01:21:03,077 INFO L389 chiAutomizerObserver]: Analyzing ICFG up.i [2021-10-13 01:21:03,139 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:21:03,139 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:21:03,140 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:21:03,140 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:21:03,140 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:21:03,140 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:21:03,140 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:21:03,140 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:21:03,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 01:21:03,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 01:21:03,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:21:03,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:21:03,192 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:21:03,192 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:21:03,192 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:21:03,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 01:21:03,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-13 01:21:03,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:21:03,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:21:03,195 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:21:03,196 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:21:03,203 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); 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L29-2true [2021-10-13 01:21:03,204 INFO L793 eck$LassoCheckResult]: Loop: 12#L29-2true assume !!(main_~i~0 < main_~n~0);main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := 1 + main_#t~post5;havoc main_#t~post5; 12#L29-2true [2021-10-13 01:21:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:03,211 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 01:21:03,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:03,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344354318] [2021-10-13 01:21:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:03,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,331 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:21:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:03,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:03,389 INFO L82 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-10-13 01:21:03,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:03,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202513663] [2021-10-13 01:21:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:03,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,401 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:21:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:03,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:03,417 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-10-13 01:21:03,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:03,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055333754] [2021-10-13 01:21:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:03,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:21:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:03,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:03,575 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:21:03,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:21:03,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:21:03,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:21:03,576 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:21:03,577 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,577 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:21:03,577 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:21:03,577 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2021-10-13 01:21:03,577 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:21:03,577 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:21:03,594 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 01:21:03,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:03,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:03,606 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 01:21:03,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:21:03,665 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:21:03,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:03,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:03,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:03,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:03,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:21:03,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:21:03,713 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:21:03,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:03,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:03,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:03,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:21:03,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:03,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:03,775 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:21:03,775 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:21:03,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:03,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:03,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:03,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:21:03,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:03,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:03,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:03,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:03,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:03,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:21:03,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:03,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:21:03,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:21:03,920 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2021-10-13 01:21:03,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:03,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:03,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:03,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:03,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:21:03,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:03,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:04,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:04,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:21:04,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:04,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:21:04,166 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:21:04,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:04,172 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:21:04,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:21:04,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:21:04,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:21:04,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:21:04,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,173 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:21:04,173 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:21:04,173 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2021-10-13 01:21:04,173 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:21:04,173 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:21:04,175 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 01:21:04,178 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 01:21:04,182 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 01:21:04,185 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 01:21:04,235 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:21:04,239 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:21:04,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,258 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 01:21:04,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:21:04,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:04,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:04,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:04,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:04,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:04,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:04,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:04,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:21:04,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:04,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:21:04,301 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 01:21:04,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:04,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:04,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:04,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:04,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:04,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:04,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:04,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:21:04,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:04,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:21:04,389 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 01:21:04,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:04,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:04,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:04,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:04,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:04,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:04,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:04,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:21:04,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 01:21:04,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,427 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:21:04,436 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 01:21:04,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:04,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:04,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:04,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:04,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:04,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:04,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:04,454 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:21:04,472 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:21:04,473 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:21:04,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:04,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:04,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:21:04,486 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:21:04,486 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:21:04,486 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:21:04,487 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-13 01:21:04,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:04,508 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:21:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:04,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:21:04,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:04,579 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:21:04,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:04,579 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 01:21:04,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:21:04,602 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:04,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 38 transitions. Complement of second has 5 states. [2021-10-13 01:21:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:21:04,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-10-13 01:21:04,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-13 01:21:04,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:04,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-13 01:21:04,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:04,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 01:21:04,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:04,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2021-10-13 01:21:04,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:21:04,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 10 transitions. [2021-10-13 01:21:04,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:21:04,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 01:21:04,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-10-13 01:21:04,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:21:04,667 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-13 01:21:04,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-10-13 01:21:04,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-13 01:21:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:04,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-10-13 01:21:04,695 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-13 01:21:04,696 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-13 01:21:04,696 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:21:04,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-10-13 01:21:04,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:21:04,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:21:04,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:21:04,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:21:04,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:21:04,698 INFO L791 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 74#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 77#L29-2 assume !(main_~i~0 < main_~n~0); 75#L29-3 main_~j~0 := 0; 76#L34-2 [2021-10-13 01:21:04,698 INFO L793 eck$LassoCheckResult]: Loop: 76#L34-2 assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 71#L18 assume !(0 == __VERIFIER_assert_~cond); 72#L18-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6;main_#t~post7 := main_~k~0;main_~k~0 := main_#t~post7 - 1;havoc main_#t~post7; 76#L34-2 [2021-10-13 01:21:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:04,699 INFO L82 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2021-10-13 01:21:04,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:04,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34479484] [2021-10-13 01:21:04,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:04,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:04,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:21:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:04,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:04,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:04,762 INFO L82 PathProgramCache]: Analyzing trace with hash 53850, now seen corresponding path program 1 times [2021-10-13 01:21:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:04,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481323755] [2021-10-13 01:21:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:04,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:04,770 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:21:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:21:04,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:04,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1808851250, now seen corresponding path program 1 times [2021-10-13 01:21:04,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:21:04,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400954737] [2021-10-13 01:21:04,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:21:04,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:21:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:04,877 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 01:21:04,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:21:04,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400954737] [2021-10-13 01:21:04,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400954737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:21:04,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:21:04,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:21:04,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57959695] [2021-10-13 01:21:04,994 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:21:04,994 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:21:04,994 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:21:04,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:21:04,995 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:21:04,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:04,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:21:04,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:21:04,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2021-10-13 01:21:04,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:21:04,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:21:04,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:04,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:05,004 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 01:21:05,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:05,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:05,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:21:05,062 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:21:05,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,063 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:05,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:05,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:21:05,099 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:21:05,099 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:21:05,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,136 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:05,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:05,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:21:05,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:21:05,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:21:05,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,212 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:21:05,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:05,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:21:05,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:21:05,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:21:05,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:21:05,498 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:21:05,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,507 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:21:05,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:21:05,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:21:05,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:21:05,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:21:05,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:21:05,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:21:05,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2021-10-13 01:21:05,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:21:05,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:21:05,510 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 01:21:05,516 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 01:21:05,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:21:05,536 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 01:21:05,538 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 01:21:05,599 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:21:05,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:21:05,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,603 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:21:05,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:05,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:05,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:05,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:05,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:05,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:05,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:05,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:21:05,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:21:05,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,669 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:21:05,674 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 01:21:05,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:05,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:05,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:05,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:05,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:05,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:05,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:05,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:21:05,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,714 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:21:05,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:21:05,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:21:05,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:21:05,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:21:05,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:21:05,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:21:05,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:21:05,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:21:05,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:21:05,751 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:21:05,751 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:21:05,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:21:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:21:05,779 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:21:05,789 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:21:05,789 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:21:05,789 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:21:05,789 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-13 01:21:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:21:05,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:05,826 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:21:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:21:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:05,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:21:05,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:21:05,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:21:05,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:21:05,922 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 01:21:05,923 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 01:21:05,923 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:05,931 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 4 states. [2021-10-13 01:21:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:21:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-13 01:21:05,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 01:21:05,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:05,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:21:05,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:05,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 01:21:05,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:21:05,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-10-13 01:21:05,936 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:21:05,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-10-13 01:21:05,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:21:05,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:21:05,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:21:05,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:21:05,937 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:05,937 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:05,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:21:05,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:21:05,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:21:05,941 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:21:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:21:05,944 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-13 01:21:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:21:05,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-13 01:21:05,944 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:21:05,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:21:05,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:21:05,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:21:05,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:21:05,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:21:05,945 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:05,945 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:05,945 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:21:05,945 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:21:05,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:21:05,946 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:21:05,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:21:05,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:21:05 BoogieIcfgContainer [2021-10-13 01:21:05,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:21:05,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:21:05,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:21:05,952 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:21:05,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:21:03" (3/4) ... [2021-10-13 01:21:05,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:21:05,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:21:05,957 INFO L168 Benchmark]: Toolchain (without parser) took 3514.68 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 62.6 MB in the beginning and 69.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:05,958 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:21:05,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.54 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 75.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:05,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 73.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:21:05,960 INFO L168 Benchmark]: Boogie Preprocessor took 19.33 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 839.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:05,960 INFO L168 Benchmark]: RCFGBuilder took 316.85 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 64.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:05,961 INFO L168 Benchmark]: BuchiAutomizer took 2884.31 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 63.8 MB in the beginning and 70.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:05,961 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 144.7 MB. Free memory was 70.7 MB in the beginning and 69.9 MB in the end (delta: 781.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:21:05,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.54 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 75.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 73.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.33 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 839.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 316.85 ms. Allocated memory is still 100.7 MB. Free memory was 73.1 MB in the beginning and 64.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2884.31 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 63.8 MB in the beginning and 70.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 144.7 MB. Free memory was 70.7 MB in the beginning and 69.9 MB in the end (delta: 781.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 10.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 15 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:21:06,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:06,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:21:06,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5482c7c8-ad77-4fa3-b894-2e3e41ced909/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...