./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa --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 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:52:30,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:52:30,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:52:30,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:52:30,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:52:30,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:52:30,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:52:30,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:52:30,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:52:30,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:52:30,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:52:30,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:52:30,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:52:30,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:52:30,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:52:30,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:52:30,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:52:30,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:52:30,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:52:30,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:52:30,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:52:30,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:52:30,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:52:30,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:52:30,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:52:30,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:52:30,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:52:30,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:52:30,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:52:30,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:52:30,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:52:30,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:52:30,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:52:30,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:52:30,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:52:30,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:52:30,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:52:30,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:52:30,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:52:30,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:52:30,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:52:30,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 22:52:30,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:52:30,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:52:30,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:52:30,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:52:30,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:52:30,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:52:30,192 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:52:30,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:52:30,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:52:30,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:52:30,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:52:30,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:52:30,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:52:30,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:52:30,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:52:30,196 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:52:30,196 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_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 [2021-12-06 22:52:30,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:52:30,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:52:30,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:52:30,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:52:30,420 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:52:30,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2021-12-06 22:52:30,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/data/df6e0d6f4/e44cee025bb64b17a4a820428f48529f/FLAG4e9895c33 [2021-12-06 22:52:30,824 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:52:30,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2021-12-06 22:52:30,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/data/df6e0d6f4/e44cee025bb64b17a4a820428f48529f/FLAG4e9895c33 [2021-12-06 22:52:30,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/data/df6e0d6f4/e44cee025bb64b17a4a820428f48529f [2021-12-06 22:52:30,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:52:30,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:52:30,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:52:30,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:52:30,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:52:30,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:52:30" (1/1) ... [2021-12-06 22:52:30,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421abdfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:30, skipping insertion in model container [2021-12-06 22:52:30,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:52:30" (1/1) ... [2021-12-06 22:52:30,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:52:30,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:52:30,972 WARN L230 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_bda96bc1-8a99-4ddb-97f6-0cf756b80894/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2021-12-06 22:52:30,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:52:30,982 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:52:30,993 WARN L230 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_bda96bc1-8a99-4ddb-97f6-0cf756b80894/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2021-12-06 22:52:30,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:52:31,004 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:52:31,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31 WrapperNode [2021-12-06 22:52:31,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:52:31,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:52:31,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:52:31,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:52:31,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,033 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-06 22:52:31,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:52:31,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:52:31,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:52:31,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:52:31,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:52:31,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:52:31,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:52:31,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:52:31,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (1/1) ... [2021-12-06 22:52:31,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:52:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:52:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:52:31,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:52:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:52:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-12-06 22:52:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-12-06 22:52:31,160 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:52:31,161 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:52:31,213 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:52:31,217 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:52:31,217 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:52:31,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:52:31 BoogieIcfgContainer [2021-12-06 22:52:31,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:52:31,220 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:52:31,220 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:52:31,222 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:52:31,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:52:31,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:52:30" (1/3) ... [2021-12-06 22:52:31,224 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ed6e83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:52:31, skipping insertion in model container [2021-12-06 22:52:31,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:52:31,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:52:31" (2/3) ... [2021-12-06 22:52:31,224 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ed6e83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:52:31, skipping insertion in model container [2021-12-06 22:52:31,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:52:31,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:52:31" (3/3) ... [2021-12-06 22:52:31,226 INFO L388 chiAutomizerObserver]: Analyzing ICFG id_i15_o15-2.c [2021-12-06 22:52:31,260 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:52:31,260 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:52:31,260 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:52:31,260 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:52:31,261 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:52:31,261 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:52:31,261 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:52:31,261 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:52:31,272 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) [2021-12-06 22:52:31,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:52:31,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:52:31,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:52:31,294 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:52:31,294 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:52:31,294 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:52:31,294 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) [2021-12-06 22:52:31,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 22:52:31,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:52:31,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:52:31,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:52:31,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 22:52:31,302 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~input~0#1, main_~result~0#1;main_~input~0#1 := 15; 14#L13true call main_#t~ret5#1 := id(main_~input~0#1);< 12#idENTRYtrue [2021-12-06 22:52:31,303 INFO L793 eck$LassoCheckResult]: Loop: 12#idENTRYtrue ~x := #in~x; 8#L7true assume !(0 == ~x); 7#L8true call #t~ret4 := id(~x - 1);< 12#idENTRYtrue [2021-12-06 22:52:31,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:52:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-12-06 22:52:31,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:52:31,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433524957] [2021-12-06 22:52:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:52:31,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:52:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,410 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:52:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:52:31,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:52:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-12-06 22:52:31,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:52:31,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425509527] [2021-12-06 22:52:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:52:31,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:52:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,449 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:52:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:52:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:52:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-12-06 22:52:31,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:52:31,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004073881] [2021-12-06 22:52:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:52:31,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:52:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:52:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:52:31,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:52:31,558 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:52:31,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:52:31,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:52:31,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:52:31,559 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 22:52:31,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:52:31,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:52:31,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i15_o15-2.c_Iteration1_Loop [2021-12-06 22:52:31,559 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:52:31,559 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:52:31,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:31,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:31,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:31,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:31,619 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:52:31,620 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 22:52:31,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 22:52:31,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 22:52:31,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 22:52:31,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 22:52:31,639 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 22:52:31,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:52:31,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 22:52:31,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 22:52:31,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 22:52:31,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 22:52:31,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 22:52:31,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 22:52:31,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 22:52:31,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 22:52:31,753 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] [2021-12-06 22:52:31,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 22:52:31,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,786 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 22:52:31,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 22:52:31,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 22:52:31,797 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 22:52:31,798 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 22:52:31,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 22:52:31,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:31,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:31,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 22:52:31,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 22:52:31,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 22:52:31,834 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 22:52:31,834 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret4=0} Honda state: {id_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 22:52:31,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 22:52:32,004 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 22:52:32,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 22:52:32,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 22:52:32,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 22:52:32,004 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 22:52:32,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:32,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 22:52:32,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 22:52:32,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i15_o15-2.c_Iteration1_Lasso [2021-12-06 22:52:32,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 22:52:32,005 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 22:52:32,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 22:52:32,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 22:52:32,180 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 22:52:32,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:32,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:32,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:32,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 22:52:32,184 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 [2021-12-06 22:52:32,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:52:32,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 22:52:32,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:52:32,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 22:52:32,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:52:32,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 22:52:32,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 22:52:32,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 22:52:32,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 22:52:32,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:32,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:32,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 22:52:32,226 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 [2021-12-06 22:52:32,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 22:52:32,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 22:52:32,234 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 22:52:32,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 22:52:32,242 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 22:52:32,242 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 22:52:32,254 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 22:52:32,269 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 22:52:32,269 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-06 22:52:32,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:52:32,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:52:32,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:52:32,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 22:52:32,276 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 22:52:32,287 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-06 22:52:32,287 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 22:52:32,288 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2021-12-06 22:52:32,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 22:52:32,311 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-06 22:52:32,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:52:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:52:32,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:52:32,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:52:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:52:32,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 22:52:32,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:52:32,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-06 22:52:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:52:32,434 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 [2021-12-06 22:52:32,435 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) [2021-12-06 22:52:32,505 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. [2021-12-06 22:52:32,506 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 [2021-12-06 22:52:32,510 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) [2021-12-06 22:52:32,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-12-06 22:52:32,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-06 22:52:32,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:52:32,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-06 22:52:32,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:52:32,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-06 22:52:32,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 22:52:32,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-12-06 22:52:32,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:52:32,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-12-06 22:52:32,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 22:52:32,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 22:52:32,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 22:52:32,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:52:32,519 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:52:32,519 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:52:32,519 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 22:52:32,519 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 22:52:32,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 22:52:32,520 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 22:52:32,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 22:52:32,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:52:32 BoogieIcfgContainer [2021-12-06 22:52:32,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:52:32,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:52:32,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:52:32,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:52:32,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:52:31" (3/4) ... [2021-12-06 22:52:32,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:52:32,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:52:32,529 INFO L158 Benchmark]: Toolchain (without parser) took 1686.20ms. Allocated memory is still 123.7MB. Free memory was 84.3MB in the beginning and 87.9MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:52:32,529 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:52:32,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.63ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 74.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 22:52:32,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.90ms. Allocated memory is still 123.7MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:52:32,531 INFO L158 Benchmark]: Boogie Preprocessor took 15.63ms. Allocated memory is still 123.7MB. Free memory was 73.4MB in the beginning and 72.5MB in the end (delta: 889.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:52:32,532 INFO L158 Benchmark]: RCFGBuilder took 168.07ms. Allocated memory is still 123.7MB. Free memory was 72.5MB in the beginning and 64.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:52:32,532 INFO L158 Benchmark]: BuchiAutomizer took 1304.88ms. Allocated memory is still 123.7MB. Free memory was 64.1MB in the beginning and 87.9MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:52:32,533 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 123.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:52:32,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.63ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 74.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.90ms. Allocated memory is still 123.7MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.63ms. Allocated memory is still 123.7MB. Free memory was 73.4MB in the beginning and 72.5MB in the end (delta: 889.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 168.07ms. Allocated memory is still 123.7MB. Free memory was 72.5MB in the beginning and 64.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1304.88ms. Allocated memory is still 123.7MB. Free memory was 64.1MB in the beginning and 87.9MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 123.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax100 hnf100 lsp64 ukn84 mio100 lsp100 div100 bol100 ite100 ukn100 eq199 hnf96 smp100 dnf145 smp100 tf102 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 63ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 22:52:32,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda96bc1-8a99-4ddb-97f6-0cf756b80894/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE