./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:06:03,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:06:03,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:06:03,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:06:03,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:06:03,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:06:03,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:06:03,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:06:03,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:06:03,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:06:03,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:06:03,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:06:03,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:06:03,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:06:03,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:06:03,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:06:03,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:06:03,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:06:03,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:06:03,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:06:03,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:06:03,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:06:03,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:06:03,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:06:03,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:06:03,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:06:03,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:06:03,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:06:03,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:06:03,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:06:03,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:06:03,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:06:03,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:06:03,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:06:03,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:06:03,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:06:03,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:06:03,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:06:03,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:06:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:06:03,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:06:03,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:06:03,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:06:03,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:06:03,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:06:03,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:06:03,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:06:03,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:06:03,319 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:06:03,320 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:06:03,320 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:06:03,320 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:06:03,321 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:06:03,321 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:06:03,322 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:06:03,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:06:03,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:06:03,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:06:03,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:06:03,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:06:03,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:06:03,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:06:03,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:06:03,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:06:03,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:06:03,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:06:03,326 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:06:03,327 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:06:03,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:06:03,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:06:03,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:06:03,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:06:03,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:06:03,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:06:03,330 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:06:03,330 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_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 [2021-10-28 09:06:03,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:06:03,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:06:03,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:06:03,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:06:03,664 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:06:03,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-10-28 09:06:03,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/data/d11f07566/fcb37f22b55d48a49fe18256779f8522/FLAGf854538cf [2021-10-28 09:06:04,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:06:04,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-10-28 09:06:04,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/data/d11f07566/fcb37f22b55d48a49fe18256779f8522/FLAGf854538cf [2021-10-28 09:06:04,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/data/d11f07566/fcb37f22b55d48a49fe18256779f8522 [2021-10-28 09:06:04,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:06:04,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:06:04,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:06:04,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:06:04,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:06:04,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:04,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d750f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04, skipping insertion in model container [2021-10-28 09:06:04,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:04,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:06:04,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:06:04,924 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_8bdc7b33-221f-48f5-b81b-40abaffb27c4/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c[454,467] [2021-10-28 09:06:04,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:06:04,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:06:04,968 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_8bdc7b33-221f-48f5-b81b-40abaffb27c4/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c[454,467] [2021-10-28 09:06:04,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:06:04,994 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:06:04,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04 WrapperNode [2021-10-28 09:06:04,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:06:04,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:06:04,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:06:04,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:06:05,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:06:05,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:06:05,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:06:05,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:06:05,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:06:05,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:06:05,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:06:05,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:06:05,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (1/1) ... [2021-10-28 09:06:05,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:05,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:05,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:05,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:06:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:06:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:06:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:06:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-28 09:06:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-28 09:06:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:06:05,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:06:05,456 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 09:06:05,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:06:05 BoogieIcfgContainer [2021-10-28 09:06:05,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:06:05,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:06:05,472 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:06:05,476 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:06:05,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:06:05,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:06:04" (1/3) ... [2021-10-28 09:06:05,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2660a288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:06:05, skipping insertion in model container [2021-10-28 09:06:05,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:06:05,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:06:04" (2/3) ... [2021-10-28 09:06:05,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2660a288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:06:05, skipping insertion in model container [2021-10-28 09:06:05,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:06:05,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:06:05" (3/3) ... [2021-10-28 09:06:05,482 INFO L389 chiAutomizerObserver]: Analyzing ICFG id_i25_o25-1.c [2021-10-28 09:06:05,535 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:06:05,535 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:06:05,536 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:06:05,536 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:06:05,536 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:06:05,536 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:06:05,537 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:06:05,537 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:06:05,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:06:05,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:06:05,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:06:05,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:06:05,588 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:06:05,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:06:05,589 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:06:05,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:06:05,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:06:05,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:06:05,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:06:05,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:06:05,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:06:05,602 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(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 10#L-1true havoc main_#res;havoc main_#t~ret8, main_~input~0, main_~result~0;main_~input~0 := 25; 14#L13true call main_#t~ret8 := id(main_~input~0);< 12#idENTRYtrue [2021-10-28 09:06:05,602 INFO L793 eck$LassoCheckResult]: Loop: 12#idENTRYtrue ~x := #in~x; 8#L7true assume !(0 == ~x); 7#L8true call #t~ret7 := id(~x - 1);< 12#idENTRYtrue [2021-10-28 09:06:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-28 09:06:05,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:05,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626908150] [2021-10-28 09:06:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:05,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,769 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-28 09:06:05,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:05,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918551843] [2021-10-28 09:06:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:05,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,827 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:05,837 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-28 09:06:05,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:05,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029093420] [2021-10-28 09:06:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:05,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,865 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:05,910 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:06,074 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:06,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:06,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:06,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:06,075 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:06:06,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,076 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:06,076 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:06,076 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Loop [2021-10-28 09:06:06,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:06,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:06,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:06,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:06,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:06,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:06,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:06,199 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:06:06,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:06,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:06,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:06,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:06,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:06:06,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:06,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret7=0} Honda state: {id_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:06,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:06,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:06,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:06,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:06,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:06,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:06:06,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:06,322 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:06,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 09:06:06,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:06,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:06,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:06:06,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:06,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:06,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:06,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:06,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:06,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:06:06,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:06:06,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:06,501 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:06,501 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-5} Honda state: {id_#in~x=-5} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 10, 8] Nus: [0, 0] [2021-10-28 09:06:06,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:06,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:06,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:06,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:06,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:06:06,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:06,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:06,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:06,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:06,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:07,373 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:07,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:07,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:07,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:07,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:06:07,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:07,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:07,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:07,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Lasso [2021-10-28 09:06:07,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:07,374 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:07,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:07,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:07,904 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:06:07,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:07,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:07,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:07,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:07,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:07,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:07,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:07,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:07,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:06:07,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:06:07,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:06:07,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:07,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:07,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:07,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:07,991 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:07,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:08,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:08,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:08,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:08,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:08,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:08,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:08,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:08,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:06:08,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:08,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:08,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:08,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:08,074 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:08,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:08,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:08,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:08,092 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:06:08,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:08,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:06:08,107 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:06:08,114 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:06:08,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:06:08,190 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-28 09:06:08,190 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 09:06:08,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:08,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:08,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:08,199 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:06:08,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:06:08,240 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 09:06:08,241 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:06:08,241 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2021-10-28 09:06:08,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:08,309 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-28 09:06:08,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:08,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:06:08,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:08,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:08,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:06:08,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:08,569 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-28 09:06:08,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:08,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 13 states. [2021-10-28 09:06:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-10-28 09:06:08,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 09:06:08,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:08,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 09:06:08,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:08,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 09:06:08,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:08,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-28 09:06:08,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:06:08,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-28 09:06:08,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:06:08,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:06:08,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:06:08,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:06:08,740 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:08,740 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:08,740 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:08,740 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:06:08,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:06:08,743 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:06:08,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:06:08,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:06:08 BoogieIcfgContainer [2021-10-28 09:06:08,756 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:06:08,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:06:08,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:06:08,758 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:06:08,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:06:05" (3/4) ... [2021-10-28 09:06:08,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:06:08,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:06:08,765 INFO L168 Benchmark]: Toolchain (without parser) took 4062.83 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 82.5 MB in the beginning and 100.2 MB in the end (delta: -17.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:08,766 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:08,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.63 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 89.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:08,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:08,777 INFO L168 Benchmark]: Boogie Preprocessor took 35.47 ms. Allocated memory is still 113.2 MB. Free memory was 88.4 MB in the beginning and 87.6 MB in the end (delta: 764.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:08,777 INFO L168 Benchmark]: RCFGBuilder took 391.92 ms. Allocated memory is still 113.2 MB. Free memory was 87.6 MB in the beginning and 78.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:08,778 INFO L168 Benchmark]: BuchiAutomizer took 3284.92 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.3 MB in the beginning and 100.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:08,779 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 136.3 MB. Free memory is still 100.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:08,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.63 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 89.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.47 ms. Allocated memory is still 113.2 MB. Free memory was 88.4 MB in the beginning and 87.6 MB in the end (delta: 764.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 391.92 ms. Allocated memory is still 113.2 MB. Free memory was 87.6 MB in the beginning and 78.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3284.92 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.3 MB in the beginning and 100.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 136.3 MB. Free memory is still 100.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital66 mio100 ax100 hnf100 lsp89 ukn73 mio100 lsp67 div100 bol100 ite100 ukn100 eq199 hnf96 smp100 dnf145 smp100 tf102 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 169ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:06:08,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bdc7b33-221f-48f5-b81b-40abaffb27c4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...