./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 fa16f28cdab01c0d49bf2bd46e148912a30ce280 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:02,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:02,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:02,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:02,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:02,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:02,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:02,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:02,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:02,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:02,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:02,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:02,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:02,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:02,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:02,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:02,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:02,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:02,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:02,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:02,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:02,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:02,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:02,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:02,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:02,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:02,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:02,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:02,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:02,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:02,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:02,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:02,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:02,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:02,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:02,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:02,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:02,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:02,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:02,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:02,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:02,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:02:02,200 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:02,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:02,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:02,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:02,201 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:02,202 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:02,202 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:02,211 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:02,211 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:02,211 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:02,212 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:02,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:02,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:02,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:02,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:02,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:02,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:02,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:02,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:02,214 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:02,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:02,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:02,214 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:02,215 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:02,215 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/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2019-10-22 09:02:02,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:02,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:02,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:02,259 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:02,259 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:02,259 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Parallel.c [2019-10-22 09:02:02,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/data/0815ae63e/d972a5b1b4b0499997a6881c4d9fff47/FLAG722b0752b [2019-10-22 09:02:02,670 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:02,671 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/sv-benchmarks/c/termination-crafted/Parallel.c [2019-10-22 09:02:02,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/data/0815ae63e/d972a5b1b4b0499997a6881c4d9fff47/FLAG722b0752b [2019-10-22 09:02:02,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/bin/uautomizer/data/0815ae63e/d972a5b1b4b0499997a6881c4d9fff47 [2019-10-22 09:02:02,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:02,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:02,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:02,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:02,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:02,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:02" (1/1) ... [2019-10-22 09:02:02,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5390f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:02, skipping insertion in model container [2019-10-22 09:02:02,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:02" (1/1) ... [2019-10-22 09:02:02,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:02,728 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:02,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:02,895 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:03,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:03,031 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:03,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03 WrapperNode [2019-10-22 09:02:03,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:03,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:03,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:03,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:03,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:03,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:03,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:03,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:03,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:03,268 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:03,268 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 09:02:03,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03 BoogieIcfgContainer [2019-10-22 09:02:03,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:03,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:03,271 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:03,274 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:03,275 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:02" (1/3) ... [2019-10-22 09:02:03,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e188a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:03, skipping insertion in model container [2019-10-22 09:02:03,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (2/3) ... [2019-10-22 09:02:03,277 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e188a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:03, skipping insertion in model container [2019-10-22 09:02:03,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03" (3/3) ... [2019-10-22 09:02:03,279 INFO L371 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2019-10-22 09:02:03,327 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:03,327 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:03,327 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:03,327 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:03,327 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:03,328 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:03,328 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:03,328 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:03,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 09:02:03,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:02:03,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:03,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:03,364 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:02:03,365 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:02:03,365 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:03,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 09:02:03,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:02:03,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:03,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:03,366 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:02:03,366 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:02:03,373 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L23-2true [2019-10-22 09:02:03,374 INFO L793 eck$LassoCheckResult]: Loop: 3#L23-2true assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 5#L23true assume main_~x~0 >= 0;main_~x~0 := main_~x~0 - 1; 3#L23-2true [2019-10-22 09:02:03,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,379 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 09:02:03,386 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089643093] [2019-10-22 09:02:03,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,473 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-10-22 09:02:03,475 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289421857] [2019-10-22 09:02:03,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,487 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,488 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-10-22 09:02:03,489 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055155672] [2019-10-22 09:02:03,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,498 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:03,537 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:03,538 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:03,538 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:03,538 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:03,538 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:03,539 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:03,539 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:03,539 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:03,539 INFO L131 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2019-10-22 09:02:03,539 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:03,539 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:03,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,688 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:03,689 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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) [2019-10-22 09:02:03,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:03,703 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:03,713 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:03,713 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:03,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:03,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:03,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:03,735 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/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:03,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:03,745 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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) [2019-10-22 09:02:03,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:03,759 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 [2019-10-22 09:02:03,782 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:03,784 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:03,784 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:03,785 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:03,786 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:03,786 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:03,786 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:03,786 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:03,787 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:03,787 INFO L131 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2019-10-22 09:02:03,787 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:03,787 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:03,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:03,874 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:03,879 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:03,880 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 [2019-10-22 09:02:03,883 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:03,884 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:03,885 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:03,885 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:03,889 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:03,892 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:03,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:03,902 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 [2019-10-22 09:02:03,904 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:03,904 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:03,905 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:03,905 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:03,907 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:03,910 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:03,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:03,920 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 [2019-10-22 09:02:03,922 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:03,923 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:03,924 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:03,924 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:03,924 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:03,925 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:03,925 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:03,929 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:03,940 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:03,940 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-10-22 09:02:03,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:03,942 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:03,942 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:03,943 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-10-22 09:02:03,945 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:03,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:04,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,017 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:04,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:04,036 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 [2019-10-22 09:02:04,037 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-10-22 09:02:04,075 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 21 states and 30 transitions. Complement of second has 5 states. [2019-10-22 09:02:04,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 09:02:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-10-22 09:02:04,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 09:02:04,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 09:02:04,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-10-22 09:02:04,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2019-10-22 09:02:04,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:02:04,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 8 states and 11 transitions. [2019-10-22 09:02:04,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 09:02:04,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 09:02:04,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-10-22 09:02:04,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:02:04,091 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-10-22 09:02:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-10-22 09:02:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-10-22 09:02:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 09:02:04,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-10-22 09:02:04,115 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 09:02:04,115 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-10-22 09:02:04,115 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:04,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-10-22 09:02:04,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:02:04,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:04,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:04,116 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:02:04,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:02:04,117 INFO L791 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 65#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 61#L23 [2019-10-22 09:02:04,117 INFO L793 eck$LassoCheckResult]: Loop: 61#L23 assume !(main_~x~0 >= 0);main_~y~0 := main_~y~0 - 1; 60#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 61#L23 [2019-10-22 09:02:04,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-10-22 09:02:04,117 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:04,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828268652] [2019-10-22 09:02:04,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,126 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-10-22 09:02:04,126 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:04,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481628627] [2019-10-22 09:02:04,127 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,127 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,133 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,133 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-10-22 09:02:04,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:04,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198543024] [2019-10-22 09:02:04,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:04,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:04,143 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:04,182 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:04,182 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:04,183 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:04,183 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:04,183 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:02:04,183 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,183 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:04,183 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:04,183 INFO L131 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2019-10-22 09:02:04,183 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:04,184 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:04,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,238 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:04,239 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:04,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:04,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:04,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:04,253 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/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:04,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:04,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:04,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:02:04,262 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/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:02:04,270 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de516e4a-b014-4faf-af0a-fb92a602453b/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 [2019-10-22 09:02:04,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:02:04,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:02:04,305 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:02:04,307 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:04,307 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:04,307 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:04,307 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:04,308 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:04,308 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,308 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:04,308 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:04,308 INFO L131 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2019-10-22 09:02:04,308 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:04,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:04,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,378 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:04,378 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:04,378 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 [2019-10-22 09:02:04,379 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,379 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,379 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,380 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,381 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:04,381 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:04,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,390 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 [2019-10-22 09:02:04,391 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,391 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,391 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,391 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,392 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:04,393 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:04,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,400 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 [2019-10-22 09:02:04,401 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,401 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:04,401 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,401 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,402 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,418 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:04,418 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:04,426 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:04,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:04,430 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:02:04,430 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:04,430 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:02:04,431 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:04,431 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 09:02:04,431 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:02:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:04,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:04,461 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:02:04,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:04,492 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 [2019-10-22 09:02:04,492 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-10-22 09:02:04,522 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 6 states. [2019-10-22 09:02:04,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 09:02:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:02:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-10-22 09:02:04,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-10-22 09:02:04,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 09:02:04,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 09:02:04,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:04,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-10-22 09:02:04,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:04,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-10-22 09:02:04,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:02:04,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:02:04,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:02:04,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:04,527 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:04,527 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:04,528 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:04,528 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:04,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:04,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:04,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:02:04,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:04 BoogieIcfgContainer [2019-10-22 09:02:04,536 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:04,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:04,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:04,537 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:04,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03" (3/4) ... [2019-10-22 09:02:04,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:02:04,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:04,544 INFO L168 Benchmark]: Toolchain (without parser) took 1845.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.2 MB in the beginning and 989.8 MB in the end (delta: -38.6 MB). Peak memory consumption was 114.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,545 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:04,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:04,547 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,549 INFO L168 Benchmark]: RCFGBuilder took 180.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,550 INFO L168 Benchmark]: BuchiAutomizer took 1265.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.8 MB in the end (delta: 135.1 MB). Peak memory consumption was 135.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:04,550 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.2 GB. Free memory is still 989.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:04,555 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1265.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.8 MB in the end (delta: 135.1 MB). Peak memory consumption was 135.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 ms. Allocated memory is still 1.2 GB. Free memory is still 989.8 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 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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 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 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms 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...