./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex02-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX --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 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:52:49,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:52:49,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:52:49,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:52:49,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:52:49,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:52:49,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:52:49,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:52:49,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:52:49,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:52:49,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:52:49,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:52:49,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:52:49,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:52:49,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:52:49,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:52:49,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:52:49,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:52:49,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:52:49,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:52:49,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:52:49,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:52:49,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:52:49,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:52:49,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:52:49,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:52:49,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:52:49,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:52:49,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:52:49,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:52:49,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:52:49,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:52:49,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:52:49,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:52:49,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:52:49,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:52:49,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:52:49,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:52:49,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:52:49,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:52:49,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:52:49,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:52:49,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:52:49,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:52:49,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:52:49,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:52:49,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:52:49,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:52:49,370 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:52:49,370 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:52:49,370 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:52:49,370 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:52:49,371 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:52:49,371 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:52:49,371 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:52:49,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:52:49,372 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:52:49,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:52:49,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:52:49,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:52:49,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:52:49,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:52:49,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:52:49,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:52:49,374 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:52:49,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:52:49,374 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:52:49,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:52:49,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:52:49,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:52:49,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:52:49,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:52:49,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:52:49,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:52:49,378 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:52:49,378 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_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 [2021-11-09 09:52:49,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:52:49,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:52:49,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:52:49,673 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:52:49,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:52:49,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/loops/trex02-2.c [2021-11-09 09:52:49,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/data/0160f4287/82e2fb159836457bbd5d4c7bff505b12/FLAGdeca3feca [2021-11-09 09:52:50,281 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:52:50,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/sv-benchmarks/c/loops/trex02-2.c [2021-11-09 09:52:50,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/data/0160f4287/82e2fb159836457bbd5d4c7bff505b12/FLAGdeca3feca [2021-11-09 09:52:50,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/data/0160f4287/82e2fb159836457bbd5d4c7bff505b12 [2021-11-09 09:52:50,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:52:50,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:52:50,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:52:50,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:52:50,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:52:50,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398a8038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50, skipping insertion in model container [2021-11-09 09:52:50,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:52:50,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:52:50,846 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_e08ddaaa-d00d-45df-8a4d-c81bcedac754/sv-benchmarks/c/loops/trex02-2.c[320,333] [2021-11-09 09:52:50,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:52:50,887 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:52:50,917 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_e08ddaaa-d00d-45df-8a4d-c81bcedac754/sv-benchmarks/c/loops/trex02-2.c[320,333] [2021-11-09 09:52:50,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:52:50,932 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:52:50,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50 WrapperNode [2021-11-09 09:52:50,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:52:50,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:52:50,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:52:50,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:52:50,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:52:50,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:52:50,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:52:50,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:52:50,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:50,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:51,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:51,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:51,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:51,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:52:51,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:52:51,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:52:51,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:52:51,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (1/1) ... [2021-11-09 09:52:51,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:51,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:51,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:52:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:52:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:52:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:52:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:52:51,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:52:51,282 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-09 09:52:51,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:52:51 BoogieIcfgContainer [2021-11-09 09:52:51,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:52:51,285 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:52:51,285 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:52:51,288 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:52:51,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:52:51,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:52:50" (1/3) ... [2021-11-09 09:52:51,291 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610a85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:52:51, skipping insertion in model container [2021-11-09 09:52:51,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:52:51,291 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:52:50" (2/3) ... [2021-11-09 09:52:51,291 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610a85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:52:51, skipping insertion in model container [2021-11-09 09:52:51,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:52:51,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:52:51" (3/3) ... [2021-11-09 09:52:51,293 INFO L389 chiAutomizerObserver]: Analyzing ICFG trex02-2.c [2021-11-09 09:52:51,335 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:52:51,336 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:52:51,336 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:52:51,336 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:52:51,336 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:52:51,336 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:52:51,336 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:52:51,337 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:52:51,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:51,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:52:51,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:52:51,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:52:51,375 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:52:51,375 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:52:51,375 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:52:51,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:51,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 09:52:51,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:52:51,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:52:51,378 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:52:51,378 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 09:52:51,385 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_~c~0;~x~0 := main_#t~nondet8;havoc main_#t~nondet8; 10#L17-1true [2021-11-09 09:52:51,385 INFO L793 eck$LassoCheckResult]: Loop: 10#L17-1true assume !!(~x~0 > 0);main_~c~0 := main_#t~nondet9;havoc main_#t~nondet9; 8#L25true assume !(0 != main_~c~0 % 256);havoc foo_#t~post7;foo_#t~post7 := ~x~0;~x~0 := foo_#t~post7 - 1;havoc foo_#t~post7; 10#L17-1true [2021-11-09 09:52:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 09:52:51,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:51,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594785657] [2021-11-09 09:52:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:51,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,495 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:52:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:52:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2021-11-09 09:52:51,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:51,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983281390] [2021-11-09 09:52:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:51,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,565 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:52:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:52:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2021-11-09 09:52:51,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:52:51,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754002432] [2021-11-09 09:52:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:52:51,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:52:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,620 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:52:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:52:51,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:52:51,783 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:52:51,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:52:51,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:52:51,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:52:51,785 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:52:51,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:51,785 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:52:51,785 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:52:51,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2021-11-09 09:52:51,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:52:51,786 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:52:51,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:51,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:51,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:51,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:52:51,917 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:52:51,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:51,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:51,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:51,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:52:51,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:52:51,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 09:52:51,964 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:52:51,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Honda state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:52:52,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:52:52,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:52:52,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 09:52:52,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:52:52,040 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post7=0} Honda state: {ULTIMATE.start_foo_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:52:52,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:52:52,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:52:52,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 09:52:52,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:52:52,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:52:52,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 09:52:52,236 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:52:52,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,244 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:52:52,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:52:52,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:52:52,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:52:52,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:52:52,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:52:52,245 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:52:52,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2021-11-09 09:52:52,245 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:52:52,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:52:52,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:52,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:52,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:52:52,344 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:52:52,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:52:52,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 09:52:52,359 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 [2021-11-09 09:52:52,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:52:52,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:52:52,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:52:52,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:52:52,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:52:52,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:52:52,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:52:52,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:52:52,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 09:52:52,436 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 [2021-11-09 09:52:52,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:52:52,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:52:52,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:52:52,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:52:52,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:52:52,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:52:52,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:52:52,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:52:52,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 09:52:52,490 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 [2021-11-09 09:52:52,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:52:52,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:52:52,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:52:52,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:52:52,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:52:52,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:52:52,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:52:52,524 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:52:52,531 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:52:52,531 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:52:52,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:52:52,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:52:52,535 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:52:52,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 09:52:52,561 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:52:52,561 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:52:52,561 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:52:52,562 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-11-09 09:52:52,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:52,595 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:52:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:52:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:52,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:52:52,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:52:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:52:52,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:52:52,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:52:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:52:52,680 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 [2021-11-09 09:52:52,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:52,741 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 7 states. [2021-11-09 09:52:52,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 09:52:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:52:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-11-09 09:52:52,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-09 09:52:52,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:52:52,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-09 09:52:52,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:52:52,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-09 09:52:52,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:52:52,748 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-11-09 09:52:52,754 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:52:52,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-11-09 09:52:52,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:52:52,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:52:52,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:52:52,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:52:52,759 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:52:52,759 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:52:52,759 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:52:52,759 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:52:52,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:52:52,759 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:52:52,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 09:52:52,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:52:52 BoogieIcfgContainer [2021-11-09 09:52:52,765 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:52:52,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:52:52,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:52:52,766 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:52:52,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:52:51" (3/4) ... [2021-11-09 09:52:52,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:52:52,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:52:52,772 INFO L168 Benchmark]: Toolchain (without parser) took 2117.54 ms. Allocated memory is still 127.9 MB. Free memory was 92.8 MB in the beginning and 45.5 MB in the end (delta: 47.3 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,773 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 127.9 MB. Free memory was 99.1 MB in the beginning and 99.1 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:52:52,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.07 ms. Allocated memory is still 127.9 MB. Free memory was 92.6 MB in the beginning and 104.9 MB in the end (delta: -12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 127.9 MB. Free memory was 104.9 MB in the beginning and 103.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:52:52,778 INFO L168 Benchmark]: Boogie Preprocessor took 32.77 ms. Allocated memory is still 127.9 MB. Free memory was 103.0 MB in the beginning and 102.2 MB in the end (delta: 823.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,782 INFO L168 Benchmark]: RCFGBuilder took 277.79 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,782 INFO L168 Benchmark]: BuchiAutomizer took 1479.96 ms. Allocated memory is still 127.9 MB. Free memory was 93.1 MB in the beginning and 46.4 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,783 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 127.9 MB. Free memory was 46.4 MB in the beginning and 45.5 MB in the end (delta: 824.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:52:52,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 127.9 MB. Free memory was 99.1 MB in the beginning and 99.1 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.07 ms. Allocated memory is still 127.9 MB. Free memory was 92.6 MB in the beginning and 104.9 MB in the end (delta: -12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 127.9 MB. Free memory was 104.9 MB in the beginning and 103.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.77 ms. Allocated memory is still 127.9 MB. Free memory was 103.0 MB in the beginning and 102.2 MB in the end (delta: 823.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 277.79 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 93.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1479.96 ms. Allocated memory is still 127.9 MB. Free memory was 93.1 MB in the beginning and 46.4 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 127.9 MB. Free memory was 46.4 MB in the beginning and 45.5 MB in the end (delta: 824.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 7 SDslu, 8 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div469 bol100 ite100 ukn100 eq151 hnf43 smp90 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 09:52:52,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 09:52:53,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e08ddaaa-d00d-45df-8a4d-c81bcedac754/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE