./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.03-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.03-no-inv_assume.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer --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 64bit --witnessprinter.graph.data.programhash ad36718ab6ddfc340244cb30213fb3686e8ccacf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:51:19,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:51:19,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:51:19,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:51:19,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:51:19,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:51:19,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:51:19,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:51:19,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:51:19,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:51:19,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:51:19,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:51:19,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:51:19,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:51:19,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:51:19,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:51:19,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:51:19,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:51:19,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:51:19,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:51:19,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:51:19,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:51:19,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:51:19,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:51:19,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:51:19,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:51:19,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:51:19,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:51:19,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:51:19,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:51:19,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:51:19,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:51:19,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:51:19,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:51:19,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:51:19,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:51:19,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:51:19,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:51:19,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:51:19,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:51:19,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:51:19,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:51:19,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:51:19,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:51:19,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:51:19,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:51:19,243 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:51:19,244 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:51:19,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:51:19,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:51:19,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:51:19,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:51:19,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:51:19,246 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:51:19,247 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:51:19,247 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-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad36718ab6ddfc340244cb30213fb3686e8ccacf [2020-11-30 00:51:19,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:51:19,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:51:19,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:51:19,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:51:19,582 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:51:19,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.03-no-inv_assume.c [2020-11-30 00:51:19,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/data/bcd512599/32f70bd09a78416dbec754dac7259243/FLAG3be7c1a68 [2020-11-30 00:51:20,169 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:51:20,170 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/sv-benchmarks/c/termination-restricted-15/b.03-no-inv_assume.c [2020-11-30 00:51:20,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/data/bcd512599/32f70bd09a78416dbec754dac7259243/FLAG3be7c1a68 [2020-11-30 00:51:20,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/data/bcd512599/32f70bd09a78416dbec754dac7259243 [2020-11-30 00:51:20,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:51:20,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:51:20,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:51:20,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:51:20,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:51:20,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149eb368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20, skipping insertion in model container [2020-11-30 00:51:20,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:51:20,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:51:20,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:51:20,730 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:51:20,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:51:20,758 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:51:20,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20 WrapperNode [2020-11-30 00:51:20,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:51:20,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:51:20,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:51:20,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:51:20,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:51:20,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:51:20,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:51:20,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:51:20,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... [2020-11-30 00:51:20,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:51:20,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:51:20,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:51:20,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:51:20,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:51:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:51:21,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:51:21,026 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:51:21,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:21 BoogieIcfgContainer [2020-11-30 00:51:21,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:51:21,029 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:51:21,029 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:51:21,033 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:51:21,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:51:21,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:51:20" (1/3) ... [2020-11-30 00:51:21,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51299157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:51:21, skipping insertion in model container [2020-11-30 00:51:21,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:51:21,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:51:20" (2/3) ... [2020-11-30 00:51:21,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51299157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:51:21, skipping insertion in model container [2020-11-30 00:51:21,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:51:21,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:21" (3/3) ... [2020-11-30 00:51:21,039 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.03-no-inv_assume.c [2020-11-30 00:51:21,092 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:51:21,092 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:51:21,093 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:51:21,093 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:51:21,093 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:51:21,093 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:51:21,093 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:51:21,093 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:51:21,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-30 00:51:21,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:51:21,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:51:21,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:51:21,128 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:51:21,128 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:51:21,128 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:51:21,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-30 00:51:21,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:51:21,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:51:21,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:51:21,130 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:51:21,130 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:51:21,137 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L9true assume main_~x~0 > 0; 5#L10-2true [2020-11-30 00:51:21,137 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0 > main_~y~0 && main_~y~0 <= 2147483647 - main_~x~0);main_~y~0 := main_~y~0 + main_~x~0; 5#L10-2true [2020-11-30 00:51:21,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:21,149 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-30 00:51:21,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:21,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409229253] [2020-11-30 00:51:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:51:21,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:21,256 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-11-30 00:51:21,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:21,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886683022] [2020-11-30 00:51:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,285 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:51:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:21,288 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2020-11-30 00:51:21,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:51:21,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092549515] [2020-11-30 00:51:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:51:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:51:21,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:51:21,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:51:21,524 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-11-30 00:51:21,609 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:51:21,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:51:21,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:51:21,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:51:21,611 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:51:21,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:21,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:51:21,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:51:21,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.03-no-inv_assume.c_Iteration1_Lasso [2020-11-30 00:51:21,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:51:21,612 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:51:21,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:21,833 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:51:21,834 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:21,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:51:21,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:51:21,850 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:51:21,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:21,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:51:21,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:51:21,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:51:21,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:21,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:51:21,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:51:21,917 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:51:21,917 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:51:21,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:51:21,975 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:21,979 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:51:21,979 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:51:22,012 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:51:22,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:51:22,088 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:51:22,089 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:51:22,089 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:51:22,089 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:51:22,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:51:22,090 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:51:22,090 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,090 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:51:22,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:51:22,090 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.03-no-inv_assume.c_Iteration1_Lasso [2020-11-30 00:51:22,090 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:51:22,090 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:51:22,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:51:22,222 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:51:22,227 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:51:22,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:51:22,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:51:22,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:51:22,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:51:22,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:51:22,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:51:22,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:51:22,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:51:22,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:51:22,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:51:22,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:51:22,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:51:22,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:51:22,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:51:22,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:51:22,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:51:22,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:51:22,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:51:22,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:51:22,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:51:22,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:51:22,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:51:22,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:51:22,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:51:22,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:51:22,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:51:22,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:51:22,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:51:22,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:51:22,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:51:22,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:51:22,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:51:22,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:51:22,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:51:22,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:51:22,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:51:22,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:51:22,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:51:22,451 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 00:51:22,451 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9dcec67d-8487-48bd-a652-93294c388495/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:51:22,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:51:22,504 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:51:22,504 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:51:22,505 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2147483647*ULTIMATE.start_main_~x~0 - 2147483648*ULTIMATE.start_main_~y~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2020-11-30 00:51:22,548 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-30 00:51:22,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:51:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:22,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:51:22,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:51:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:51:22,633 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:51:22,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:51:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:51:22,649 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-30 00:51:22,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-11-30 00:51:22,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2020-11-30 00:51:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:51:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-30 00:51:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-30 00:51:22,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-30 00:51:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:51:22,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2020-11-30 00:51:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:51:22,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 00:51:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:51:22,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2020-11-30 00:51:22,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:51:22,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-11-30 00:51:22,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:51:22,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:51:22,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:51:22,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:51:22,722 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:51:22,722 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:51:22,723 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:51:22,723 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:51:22,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:51:22,740 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:51:22,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:51:22,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:51:22 BoogieIcfgContainer [2020-11-30 00:51:22,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:51:22,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:51:22,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:51:22,747 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:51:22,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:51:21" (3/4) ... [2020-11-30 00:51:22,750 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:51:22,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:51:22,752 INFO L168 Benchmark]: Toolchain (without parser) took 2215.88 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 76.9 MB in the beginning and 112.9 MB in the end (delta: -35.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:22,769 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:22,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.65 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 85.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:22,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.34 ms. Allocated memory is still 107.0 MB. Free memory was 85.5 MB in the beginning and 84.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:22,771 INFO L168 Benchmark]: Boogie Preprocessor took 28.60 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.4 MB in the end (delta: 950.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:22,772 INFO L168 Benchmark]: RCFGBuilder took 195.43 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 75.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:22,773 INFO L168 Benchmark]: BuchiAutomizer took 1717.45 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 75.6 MB in the beginning and 112.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:51:22,773 INFO L168 Benchmark]: Witness Printer took 4.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.9 MB in the beginning and 112.9 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:51:22,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.65 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 85.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.34 ms. Allocated memory is still 107.0 MB. Free memory was 85.5 MB in the beginning and 84.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.60 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.4 MB in the end (delta: 950.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 195.43 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 75.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1717.45 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 75.6 MB in the beginning and 112.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.25 ms. Allocated memory is still 136.3 MB. Free memory was 112.9 MB in the beginning and 112.9 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2147483647 * x + -2147483648 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax176 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq135 hnf95 smp100 dnf100 smp100 tf100 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...