./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:26:31,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:26:31,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:26:31,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:26:31,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:26:31,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:26:31,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:26:31,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:26:31,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:26:31,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:26:31,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:26:31,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:26:31,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:26:31,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:26:31,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:26:31,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:26:31,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:26:31,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:26:31,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:26:31,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:26:31,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:26:31,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:26:31,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:26:31,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:26:31,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:26:31,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:26:31,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:26:31,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:26:31,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:26:31,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:26:31,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:26:31,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:26:31,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:26:31,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:26:31,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:26:31,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:26:31,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:26:31,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:26:31,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:26:31,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:26:31,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:26:31,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:26:31,209 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:26:31,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:26:31,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:26:31,211 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:26:31,211 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:26:31,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:26:31,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:26:31,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:26:31,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:26:31,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:26:31,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:26:31,214 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:26:31,214 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:26:31,214 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_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2019-12-07 12:26:31,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:26:31,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:26:31,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:26:31,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:26:31,327 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:26:31,327 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-12-07 12:26:31,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/data/9eb4f4da1/80f12401455440bc9980c56a6cd822dc/FLAG47c9d1a9e [2019-12-07 12:26:31,776 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:26:31,776 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-12-07 12:26:31,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/data/9eb4f4da1/80f12401455440bc9980c56a6cd822dc/FLAG47c9d1a9e [2019-12-07 12:26:31,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/data/9eb4f4da1/80f12401455440bc9980c56a6cd822dc [2019-12-07 12:26:31,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:26:31,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:26:31,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:26:31,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:26:31,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:26:31,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:31,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e36ea05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31, skipping insertion in model container [2019-12-07 12:26:31,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:31,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:26:31,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:26:31,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:26:31,921 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:26:31,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:26:31,974 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:26:31,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31 WrapperNode [2019-12-07 12:26:31,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:26:31,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:26:31,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:26:31,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:26:31,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:31,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:31,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:26:31,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:26:31,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:26:31,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:26:32,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... [2019-12-07 12:26:32,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:26:32,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:26:32,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:26:32,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:26:32,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:26:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:26:32,137 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:26:32,137 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 12:26:32,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:32 BoogieIcfgContainer [2019-12-07 12:26:32,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:26:32,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:26:32,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:26:32,141 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:26:32,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:32,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:26:31" (1/3) ... [2019-12-07 12:26:32,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e2a93cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:32, skipping insertion in model container [2019-12-07 12:26:32,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:32,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:31" (2/3) ... [2019-12-07 12:26:32,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e2a93cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:32, skipping insertion in model container [2019-12-07 12:26:32,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:32,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:32" (3/3) ... [2019-12-07 12:26:32,143 INFO L371 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2019-12-07 12:26:32,173 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:26:32,173 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:26:32,173 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:26:32,173 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:26:32,173 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:26:32,173 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:26:32,173 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:26:32,173 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:26:32,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 12:26:32,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:32,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:32,200 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:26:32,200 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:26:32,200 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:26:32,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 12:26:32,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:32,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:32,201 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:26:32,201 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:26:32,206 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L19-2true [2019-12-07 12:26:32,206 INFO L796 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8#L19true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 6#L19-2true [2019-12-07 12:26:32,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,210 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 12:26:32,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172607604] [2019-12-07 12:26:32,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-12-07 12:26:32,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981728288] [2019-12-07 12:26:32,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-12-07 12:26:32,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277384325] [2019-12-07 12:26:32,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,306 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,341 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:32,341 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:32,341 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:32,341 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:32,341 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:26:32,341 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,342 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:32,342 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:32,342 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-12-07 12:26:32,342 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:32,342 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:32,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,443 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:32,444 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:32,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:32,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:32,455 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/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:32,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:32,463 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:32,463 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_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:32,467 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:26:32,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:32,480 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:26:32,481 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:32,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:32,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:32,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:32,482 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:26:32,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:32,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:32,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-12-07 12:26:32,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:32,482 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:32,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,535 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:32,538 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,544 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 [2019-12-07 12:26:32,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:32,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:32,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:32,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:32,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:32,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:32,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,559 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 [2019-12-07 12:26:32,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:32,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:32,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:32,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:32,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:32,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:32,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,570 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 [2019-12-07 12:26:32,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:32,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:32,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:32,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:32,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:32,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:32,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:32,575 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:26:32,578 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:26:32,579 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:26:32,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:26:32,586 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:26:32,586 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 12:26:32,589 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:26:32,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:32,610 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:32,611 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:32,617 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:32,618 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:32,637 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 [2019-12-07 12:26:32,637 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-12-07 12:26:32,666 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2019-12-07 12:26:32,667 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 [2019-12-07 12:26:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-12-07 12:26:32,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 12:26:32,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 12:26:32,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 12:26:32,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 12:26:32,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 12:26:32,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 12:26:32,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 12:26:32,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 12:26:32,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:26:32,676 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 12:26:32,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 12:26:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 12:26:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 12:26:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 12:26:32,693 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 12:26:32,693 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 12:26:32,693 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:26:32,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 12:26:32,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:32,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:32,694 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:26:32,694 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:26:32,694 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 68#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 73#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 69#L19-2 [2019-12-07 12:26:32,694 INFO L796 eck$LassoCheckResult]: Loop: 69#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 70#L19 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 69#L19-2 [2019-12-07 12:26:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,695 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-12-07 12:26:32,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980793679] [2019-12-07 12:26:32,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,702 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-12-07 12:26:32,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984359120] [2019-12-07 12:26:32,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,707 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-12-07 12:26:32,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,707 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750126562] [2019-12-07 12:26:32,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,729 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:32,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:32,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:32,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:32,729 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:26:32,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:32,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:32,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-12-07 12:26:32,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:32,729 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:32,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:32,773 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:32,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:32,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:32,779 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_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:32,783 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:26:32,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:32,794 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:26:32,795 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:32,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:32,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:32,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:32,795 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:26:32,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,796 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:32,796 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:32,796 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-12-07 12:26:32,796 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:32,796 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:32,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,846 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:32,846 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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 [2019-12-07 12:26:32,849 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 [2019-12-07 12:26:32,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:32,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:32,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:32,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:32,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:32,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:32,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,861 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 [2019-12-07 12:26:32,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:32,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:32,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:32,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:32,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:32,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:32,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:32,866 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:26:32,868 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 12:26:32,868 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:26:32,871 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:26:32,872 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:26:32,872 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 12:26:32,873 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:26:32,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:32,886 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:32,887 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:32,890 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:32,890 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:32,898 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 [2019-12-07 12:26:32,898 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 12:26:32,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-12-07 12:26:32,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:26:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 12:26:32,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 12:26:32,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 12:26:32,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-12-07 12:26:32,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:32,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-12-07 12:26:32,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 12:26:32,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 12:26:32,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 12:26:32,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-12-07 12:26:32,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:26:32,911 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 12:26:32,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-12-07 12:26:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 12:26:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 12:26:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 12:26:32,913 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 12:26:32,913 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 12:26:32,913 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:26:32,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-12-07 12:26:32,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 12:26:32,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:32,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:32,914 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-12-07 12:26:32,914 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:26:32,914 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 122#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 127#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 128#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 129#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 123#L19-2 [2019-12-07 12:26:32,915 INFO L796 eck$LassoCheckResult]: Loop: 123#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 124#L19 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 123#L19-2 [2019-12-07 12:26:32,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,915 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-12-07 12:26:32,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842308949] [2019-12-07 12:26:32,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,927 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-12-07 12:26:32,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12942012] [2019-12-07 12:26:32,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:32,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2019-12-07 12:26:32,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:32,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828167381] [2019-12-07 12:26:32,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:32,950 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:32,963 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:32,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:32,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:32,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:32,964 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:26:32,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:32,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:32,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:32,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-12-07 12:26:32,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:32,965 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:32,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:32,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,010 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:33,010 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,023 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,023 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,030 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,040 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:26:33,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,052 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:26:33,053 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:33,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:33,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:33,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:33,053 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:26:33,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:33,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:33,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-12-07 12:26:33,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:33,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:33,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:33,099 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,101 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 [2019-12-07 12:26:33,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:33,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,103 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 12:26:33,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,104 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 12:26:33,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:33,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,109 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 [2019-12-07 12:26:33,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:33,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:33,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,122 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 [2019-12-07 12:26:33,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:33,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:33,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:33,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,128 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 [2019-12-07 12:26:33,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:33,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:33,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,139 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 [2019-12-07 12:26:33,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:33,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:33,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:33,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:26:33,145 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 12:26:33,145 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,154 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:26:33,154 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:26:33,154 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:26:33,155 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 12:26:33,156 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:26:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,173 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,176 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:33,183 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 [2019-12-07 12:26:33,183 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 12:26:33,189 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-12-07 12:26:33,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:26:33,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 12:26:33,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 12:26:33,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,190 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 12:26:33,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,202 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,205 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:33,212 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 12:26:33,212 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 12:26:33,218 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-12-07 12:26:33,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:26:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:33,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 12:26:33,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 12:26:33,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,218 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 12:26:33,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,230 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,230 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,233 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,233 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:33,239 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 12:26:33,239 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 12:26:33,247 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-12-07 12:26:33,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:26:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-12-07 12:26:33,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 12:26:33,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 12:26:33,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 12:26:33,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-12-07 12:26:33,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 12:26:33,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-12-07 12:26:33,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 12:26:33,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 12:26:33,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-12-07 12:26:33,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:26:33,250 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-12-07 12:26:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-12-07 12:26:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-12-07 12:26:33,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:26:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-12-07 12:26:33,251 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 12:26:33,251 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 12:26:33,251 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 12:26:33,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-12-07 12:26:33,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 12:26:33,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:33,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:33,251 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:26:33,251 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:26:33,251 INFO L794 eck$LassoCheckResult]: Stem: 268#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 269#L19-2 [2019-12-07 12:26:33,251 INFO L796 eck$LassoCheckResult]: Loop: 269#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 271#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 269#L19-2 [2019-12-07 12:26:33,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,252 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-12-07 12:26:33,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:33,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256172812] [2019-12-07 12:26:33,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,255 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-12-07 12:26:33,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:33,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420876850] [2019-12-07 12:26:33,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2019-12-07 12:26:33,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:33,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344826899] [2019-12-07 12:26:33,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:33,264 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:33,276 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:33,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:33,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:33,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:33,277 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:26:33,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:33,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:33,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-12-07 12:26:33,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:33,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:33,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,320 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:33,321 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,327 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:26:33,334 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:26:33,338 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:26:33,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:26:33,349 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:26:33,350 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:26:33,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:26:33,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:26:33,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:26:33,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:26:33,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:26:33,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:26:33,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-12-07 12:26:33,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:26:33,350 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:26:33,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:26:33,393 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:26:33,393 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,395 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 [2019-12-07 12:26:33,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:33,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:33,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:33,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,402 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 [2019-12-07 12:26:33,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:26:33,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:26:33,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,413 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 [2019-12-07 12:26:33,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:26:33,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:26:33,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:26:33,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:26:33,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:26:33,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:26:33,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:26:33,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:26:33,419 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:26:33,420 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1df0561-c6b7-4f54-ba24-4b70a114b322/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:26:33,422 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:26:33,422 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:26:33,422 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:26:33,422 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 12:26:33,423 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:26:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,434 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:33,437 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:26:33,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:26:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:26:33,443 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 [2019-12-07 12:26:33,443 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-12-07 12:26:33,449 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2019-12-07 12:26:33,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:26:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:26:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 12:26:33,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 12:26:33,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 12:26:33,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 12:26:33,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:26:33,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2019-12-07 12:26:33,451 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:26:33,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-12-07 12:26:33,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:26:33,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:26:33,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:26:33,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:26:33,451 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:26:33,451 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:26:33,451 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:26:33,451 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 12:26:33,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:26:33,452 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:26:33,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:26:33,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:26:33 BoogieIcfgContainer [2019-12-07 12:26:33,457 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:26:33,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:26:33,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:26:33,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:26:33,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:32" (3/4) ... [2019-12-07 12:26:33,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:26:33,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:26:33,461 INFO L168 Benchmark]: Toolchain (without parser) took 1668.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 946.2 MB in the beginning and 989.7 MB in the end (delta: -43.4 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:26:33,461 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:26:33,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:26:33,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.29 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. [2019-12-07 12:26:33,463 INFO L168 Benchmark]: Boogie Preprocessor took 11.74 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. [2019-12-07 12:26:33,463 INFO L168 Benchmark]: RCFGBuilder took 130.16 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:26:33,464 INFO L168 Benchmark]: BuchiAutomizer took 1318.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 993.9 MB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:26:33,464 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory was 993.9 MB in the beginning and 989.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:26:33,467 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.29 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 11.74 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 130.16 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1318.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 993.9 MB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory was 993.9 MB in the beginning and 989.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 0.9s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 19 SDslu, 7 SDs, 0 SdLazy, 35 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...