./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.11.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.11.c -s /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 7711c52d03cf170922076ef9d83d98ea57ca0c02 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:27:21,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:27:21,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:27:21,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:27:21,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:27:21,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:27:21,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:27:21,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:27:21,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:27:21,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:27:21,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:27:21,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:27:21,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:27:21,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:27:21,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:27:21,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:27:21,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:27:21,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:27:21,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:27:21,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:27:21,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:27:21,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:27:21,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:27:21,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:27:21,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:27:21,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:27:21,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:27:21,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:27:21,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:27:21,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:27:21,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:27:21,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:27:21,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:27:21,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:27:21,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:27:21,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:27:21,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:27:21,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:27:21,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:27:21,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:27:21,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:27:21,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 03:27:21,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:27:21,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:27:21,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:27:21,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:27:21,350 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:27:21,350 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:27:21,351 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:27:21,351 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:27:21,351 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:27:21,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:27:21,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:27:21,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:27:21,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:27:21,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:27:21,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:27:21,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:27:21,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:27:21,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:27:21,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:27:21,353 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:27:21,353 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:27:21,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:27:21,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:27:21,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:27:21,354 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:27:21,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:27:21,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:27:21,354 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:27:21,355 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:27:21,355 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 -> 7711c52d03cf170922076ef9d83d98ea57ca0c02 [2019-11-20 03:27:21,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:27:21,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:27:21,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:27:21,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:27:21,557 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:27:21,558 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.11.c [2019-11-20 03:27:21,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/data/b990baff5/e6a556cf316a42f492709f84eef79b4c/FLAGfbbb0dc2b [2019-11-20 03:27:22,009 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:27:22,010 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/sv-benchmarks/c/termination-restricted-15/b.11.c [2019-11-20 03:27:22,015 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/data/b990baff5/e6a556cf316a42f492709f84eef79b4c/FLAGfbbb0dc2b [2019-11-20 03:27:22,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/data/b990baff5/e6a556cf316a42f492709f84eef79b4c [2019-11-20 03:27:22,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:27:22,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:27:22,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:27:22,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:27:22,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:27:22,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81c15f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22, skipping insertion in model container [2019-11-20 03:27:22,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:27:22,466 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:27:22,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:27:22,633 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:27:22,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:27:22,715 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:27:22,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22 WrapperNode [2019-11-20 03:27:22,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:27:22,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:27:22,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:27:22,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:27:22,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:27:22,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:27:22,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:27:22,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:27:22,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... [2019-11-20 03:27:22,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:27:22,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:27:22,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:27:22,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:27:22,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:27:22,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:27:22,961 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:27:22,961 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 03:27:22,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:27:22 BoogieIcfgContainer [2019-11-20 03:27:22,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:27:22,963 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:27:22,963 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:27:22,966 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:27:22,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:27:22,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:27:22" (1/3) ... [2019-11-20 03:27:22,968 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63d77f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:27:22, skipping insertion in model container [2019-11-20 03:27:22,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:27:22,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:27:22" (2/3) ... [2019-11-20 03:27:22,969 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63d77f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:27:22, skipping insertion in model container [2019-11-20 03:27:22,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:27:22,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:27:22" (3/3) ... [2019-11-20 03:27:22,971 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.11.c [2019-11-20 03:27:23,013 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:27:23,013 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:27:23,014 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:27:23,014 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:27:23,014 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:27:23,014 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:27:23,014 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:27:23,015 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:27:23,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 03:27:23,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:27:23,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:27:23,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:27:23,052 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:27:23,052 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 03:27:23,052 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:27:23,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 03:27:23,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:27:23,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:27:23,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:27:23,054 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 03:27:23,054 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 03:27:23,060 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L15-2true [2019-11-20 03:27:23,061 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 6#L12true assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2019-11-20 03:27:23,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,065 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 03:27:23,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797415880] [2019-11-20 03:27:23,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,143 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:23,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-20 03:27:23,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858188135] [2019-11-20 03:27:23,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:23,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,167 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-20 03:27:23,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456009016] [2019-11-20 03:27:23,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:23,282 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:27:23,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:27:23,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:27:23,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:27:23,283 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:27:23,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:27:23,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:27:23,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2019-11-20 03:27:23,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:27:23,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:27:23,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,450 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:27:23,451 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:23,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:23,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:27:23,474 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:27:23,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:23,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:23,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:27:23,493 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:27:23,493 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_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:23,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:23,498 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:27:23,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:27:23,534 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:27:23,535 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:27:23,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:27:23,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:27:23,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:27:23,536 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:27:23,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:27:23,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:27:23,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2019-11-20 03:27:23,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:27:23,537 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:27:23,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:23,636 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:27:23,640 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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) [2019-11-20 03:27:23,652 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 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:23,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:23,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:27:23,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:23,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:27:23,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:27:23,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:23,684 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 [2019-11-20 03:27:23,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:23,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:23,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:27:23,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:23,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:27:23,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 03:27:23,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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) [2019-11-20 03:27:23,722 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 [2019-11-20 03:27:23,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:23,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:27:23,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:23,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:27:23,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:23,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:27:23,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:27:23,740 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 03:27:23,740 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:23,760 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:27:23,760 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:27:23,760 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:27:23,761 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-20 03:27:23,766 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 03:27:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:27:23,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 03:27:23,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:27:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:27:23,824 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:27:23,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:27:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:27:23,854 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 03:27:23,855 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-20 03:27:23,901 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 33 transitions. Complement of second has 7 states. [2019-11-20 03:27:23,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 03:27:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 03:27:23,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-20 03:27:23,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 03:27:23,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:23,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 03:27:23,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:23,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 03:27:23,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:23,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. [2019-11-20 03:27:23,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:27:23,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 14 transitions. [2019-11-20 03:27:23,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 03:27:23,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-20 03:27:23,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2019-11-20 03:27:23,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:27:23,917 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-20 03:27:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2019-11-20 03:27:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-20 03:27:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 03:27:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2019-11-20 03:27:23,942 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-11-20 03:27:23,942 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-11-20 03:27:23,942 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 03:27:23,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2019-11-20 03:27:23,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 03:27:23,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:27:23,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:27:23,944 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 03:27:23,944 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 03:27:23,944 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 73#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2019-11-20 03:27:23,944 INFO L796 eck$LassoCheckResult]: Loop: 74#L12 assume !(main_~x~0 > main_~y~0); 67#L15 assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1; 68#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2019-11-20 03:27:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 03:27:23,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833056929] [2019-11-20 03:27:23,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,955 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,956 INFO L82 PathProgramCache]: Analyzing trace with hash 44836, now seen corresponding path program 1 times [2019-11-20 03:27:23,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068376364] [2019-11-20 03:27:23,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:23,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 29865627, now seen corresponding path program 1 times [2019-11-20 03:27:23,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:27:23,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679192737] [2019-11-20 03:27:23,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:27:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:27:24,011 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:27:24,066 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:27:24,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:27:24,066 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:27:24,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:27:24,067 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:27:24,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:27:24,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:27:24,067 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2019-11-20 03:27:24,067 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:27:24,067 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:27:24,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,214 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:27:24,214 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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) [2019-11-20 03:27:24,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:24,220 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:27:24,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:24,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:24,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:27:24,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:27:24,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:24,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:27:24,269 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/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 [2019-11-20 03:27:24,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:27:24,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:27:24,300 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:27:24,307 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:27:24,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:27:24,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:27:24,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:27:24,308 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:27:24,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:27:24,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:27:24,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2019-11-20 03:27:24,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:27:24,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:27:24,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:27:24,465 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:27:24,466 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:27:24,481 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 [2019-11-20 03:27:24,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:24,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:24,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:27:24,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:24,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:27:24,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:27:24,513 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 [2019-11-20 03:27:24,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:24,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:24,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:27:24,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:24,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 03:27:24,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:27:24,547 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 [2019-11-20 03:27:24,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:27:24,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:27:24,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:27:24,549 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 03:27:24,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:27:24,552 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 03:27:24,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,560 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:27:24,579 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 03:27:24,580 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_763d75c7-d6b8-4c9a-9ca2-8435a2bf7e9b/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:27:24,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:27:24,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:27:24,603 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:27:24,603 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:27:24,605 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 03:27:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:27:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:27:24,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 03:27:24,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:27:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:27:24,635 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:27:24,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:27:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:27:24,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 03:27:24,697 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-11-20 03:27:24,773 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 34 states and 50 transitions. Complement of second has 9 states. [2019-11-20 03:27:24,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 03:27:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 03:27:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2019-11-20 03:27:24,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 03:27:24,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:24,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 03:27:24,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:24,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 03:27:24,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:27:24,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2019-11-20 03:27:24,778 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:27:24,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2019-11-20 03:27:24,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 03:27:24,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 03:27:24,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 03:27:24,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:27:24,779 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:27:24,779 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:27:24,779 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:27:24,779 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 03:27:24,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:27:24,780 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:27:24,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 03:27:24,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:27:24 BoogieIcfgContainer [2019-11-20 03:27:24,787 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:27:24,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:27:24,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:27:24,788 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:27:24,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:27:22" (3/4) ... [2019-11-20 03:27:24,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 03:27:24,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:27:24,798 INFO L168 Benchmark]: Toolchain (without parser) took 2359.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 948.9 MB in the beginning and 871.0 MB in the end (delta: 77.9 MB). Peak memory consumption was 179.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:27:24,799 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:27:24,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:27:24,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:27:24,807 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:27:24,807 INFO L168 Benchmark]: RCFGBuilder took 201.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:27:24,808 INFO L168 Benchmark]: BuchiAutomizer took 1823.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 207.0 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:27:24,808 INFO L168 Benchmark]: Witness Printer took 8.76 ms. Allocated memory is still 1.1 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:27:24,813 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 201.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1823.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 207.0 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. * Witness Printer took 8.76 ms. Allocated memory is still 1.1 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 6 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf98 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq132 hnf96 smp90 dnf133 smp96 tf106 neg98 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...