./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/up.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/up.i -s /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/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 32bit --witnessprinter.graph.data.programhash 1d0e5aa3c59efbda0d367d965a49cbb0222f117b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:10:01,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:10:01,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:10:01,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:10:01,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:10:01,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:10:01,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:10:01,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:10:01,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:10:01,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:10:01,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:10:01,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:10:01,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:10:01,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:10:01,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:10:01,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:10:01,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:10:01,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:10:01,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:10:01,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:10:01,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:10:01,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:10:01,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:10:01,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:10:01,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:10:01,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:10:01,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:10:01,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:10:01,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:10:01,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:10:01,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:10:01,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:10:01,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:10:01,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:10:01,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:10:01,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:10:01,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:10:01,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:10:01,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:10:01,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:10:01,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:10:01,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 23:10:01,738 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:10:01,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:10:01,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:10:01,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:10:01,746 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:10:01,746 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:10:01,746 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:10:01,747 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:10:01,747 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:10:01,747 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:10:01,749 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:10:01,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:10:01,750 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:10:01,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:10:01,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:10:01,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:10:01,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:10:01,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:10:01,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:10:01,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:10:01,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:10:01,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:10:01,753 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:10:01,753 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:10:01,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:10:01,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:10:01,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:10:01,755 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:10:01,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:10:01,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:10:01,756 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:10:01,760 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:10:01,760 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_12673308-7bd5-4d1e-8ff7-47429967a270/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d0e5aa3c59efbda0d367d965a49cbb0222f117b [2019-11-15 23:10:01,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:10:01,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:10:01,835 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:10:01,837 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:10:01,837 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:10:01,838 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/up.i [2019-11-15 23:10:01,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/data/12ea3b454/120af68e600841bc8aa89f5ee00582e2/FLAG4202b1f91 [2019-11-15 23:10:02,473 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:10:02,474 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/sv-benchmarks/c/loop-invgen/up.i [2019-11-15 23:10:02,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/data/12ea3b454/120af68e600841bc8aa89f5ee00582e2/FLAG4202b1f91 [2019-11-15 23:10:02,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/data/12ea3b454/120af68e600841bc8aa89f5ee00582e2 [2019-11-15 23:10:02,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:10:02,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:10:02,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:10:02,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:10:02,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:10:02,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:10:02" (1/1) ... [2019-11-15 23:10:02,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2327052a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:02, skipping insertion in model container [2019-11-15 23:10:02,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:10:02" (1/1) ... [2019-11-15 23:10:02,839 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:10:02,862 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:10:03,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:10:03,110 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:10:03,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:10:03,228 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:10:03,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03 WrapperNode [2019-11-15 23:10:03,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:10:03,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:10:03,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:10:03,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:10:03,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:10:03,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:10:03,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:10:03,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:10:03,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... [2019-11-15 23:10:03,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:10:03,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:10:03,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:10:03,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:10:03,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:10:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:10:03,633 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:10:03,633 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-15 23:10:03,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:10:03 BoogieIcfgContainer [2019-11-15 23:10:03,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:10:03,635 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:10:03,635 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:10:03,639 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:10:03,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:10:03,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:10:02" (1/3) ... [2019-11-15 23:10:03,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c4f4022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:10:03, skipping insertion in model container [2019-11-15 23:10:03,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:10:03,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:10:03" (2/3) ... [2019-11-15 23:10:03,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c4f4022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:10:03, skipping insertion in model container [2019-11-15 23:10:03,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:10:03,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:10:03" (3/3) ... [2019-11-15 23:10:03,645 INFO L371 chiAutomizerObserver]: Analyzing ICFG up.i [2019-11-15 23:10:03,742 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:10:03,743 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:10:03,743 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:10:03,743 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:10:03,743 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:10:03,743 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:10:03,744 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:10:03,744 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:10:03,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-15 23:10:03,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-15 23:10:03,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:10:03,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:10:03,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 23:10:03,847 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 23:10:03,848 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:10:03,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-15 23:10:03,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-15 23:10:03,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:10:03,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:10:03,850 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 23:10:03,850 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 23:10:03,859 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L15-2true [2019-11-15 23:10:03,860 INFO L793 eck$LassoCheckResult]: Loop: 10#L15-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2;main_#t~post3 := main_~k~0;main_~k~0 := 1 + main_#t~post3;havoc main_#t~post3; 10#L15-2true [2019-11-15 23:10:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:03,869 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 23:10:03,889 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:03,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652886408] [2019-11-15 23:10:03,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:03,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:03,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,069 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:10:04,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:04,071 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-15 23:10:04,072 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:04,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202510232] [2019-11-15 23:10:04,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:04,073 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:04,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,117 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:10:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:04,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 23:10:04,120 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:04,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670573973] [2019-11-15 23:10:04,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:04,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:04,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:04,165 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:10:04,271 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:10:04,271 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:10:04,271 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:10:04,271 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:10:04,272 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:10:04,272 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,272 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:10:04,272 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:10:04,272 INFO L131 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2019-11-15 23:10:04,272 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:10:04,273 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:10:04,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,417 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:10:04,418 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:04,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:10:04,439 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:10:04,440 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:04,447 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:10:04,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:10:04,486 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:10:04,486 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=7}, {ULTIMATE.start_main_~k~0=0}, {ULTIMATE.start_main_~k~0=-6}] Lambdas: [1, 15, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:04,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:10:04,504 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:10:04,504 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/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 [2019-11-15 23:10:04,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:04,511 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:10:04,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:10:04,663 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:10:04,666 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:10:04,666 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:10:04,666 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:10:04,666 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:10:04,667 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:10:04,667 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:04,667 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:10:04,667 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:10:04,667 INFO L131 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2019-11-15 23:10:04,668 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:10:04,668 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:10:04,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:04,787 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:10:04,793 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:10:04,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:10:04,800 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:10:04,801 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:10:04,802 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:10:04,802 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:10:04,802 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:10:04,804 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:10:04,805 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:10:04,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:10:04,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:10:04,822 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:10:04,822 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:10:04,822 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:10:04,822 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:10:04,822 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:10:04,823 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:10:04,824 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:10:04,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:10:04,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:10:04,834 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:10:04,834 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:10:04,834 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:10:04,834 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:10:04,835 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:10:04,840 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:10:04,841 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:10:04,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:10:04,849 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 [2019-11-15 23:10:04,851 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:10:04,851 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:10:04,852 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:10:04,852 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:10:04,852 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:10:04,854 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:10:04,854 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:10:04,869 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:10:04,881 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 23:10:04,881 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:10:04,884 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:10:04,884 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:10:04,884 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:10:04,885 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-15 23:10:04,889 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:10:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:10:04,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:10:04,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:10:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:10:04,958 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:10:04,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:10:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:10:04,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 23:10:04,982 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 2 states. [2019-11-15 23:10:05,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 2 states. Result 27 states and 37 transitions. Complement of second has 5 states. [2019-11-15 23:10:05,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:10:05,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 23:10:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 23:10:05,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-15 23:10:05,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:05,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-15 23:10:05,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:05,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-15 23:10:05,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:05,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2019-11-15 23:10:05,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:10:05,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 7 states and 9 transitions. [2019-11-15 23:10:05,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 23:10:05,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-15 23:10:05,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2019-11-15 23:10:05,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:10:05,085 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-15 23:10:05,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2019-11-15 23:10:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-15 23:10:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 23:10:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-15 23:10:05,123 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-15 23:10:05,124 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-15 23:10:05,124 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:10:05,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-15 23:10:05,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:10:05,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:10:05,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:10:05,127 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 23:10:05,127 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 23:10:05,127 INFO L791 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 67#L15-2 assume !(main_~i~0 < main_~n~0); 68#L15-3 main_~j~0 := 0; 69#L20-2 [2019-11-15 23:10:05,128 INFO L793 eck$LassoCheckResult]: Loop: 69#L20-2 assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 71#L4 assume !(0 == __VERIFIER_assert_~cond); 70#L4-2 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := main_#t~post5 - 1;havoc main_#t~post5; 69#L20-2 [2019-11-15 23:10:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:05,129 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2019-11-15 23:10:05,129 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:05,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761072421] [2019-11-15 23:10:05,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:05,153 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:10:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:05,154 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2019-11-15 23:10:05,154 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:05,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895521891] [2019-11-15 23:10:05,155 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,155 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:10:05,194 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:10:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:05,195 INFO L82 PathProgramCache]: Analyzing trace with hash 923961140, now seen corresponding path program 1 times [2019-11-15 23:10:05,195 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:10:05,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97226680] [2019-11-15 23:10:05,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:10:05,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:10:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:10:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:10:05,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97226680] [2019-11-15 23:10:05,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:10:05,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:10:05,266 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282371630] [2019-11-15 23:10:05,329 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:10:05,329 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:10:05,329 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:10:05,329 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:10:05,329 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:10:05,329 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:05,330 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:10:05,330 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:10:05,330 INFO L131 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2019-11-15 23:10:05,330 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:10:05,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:10:05,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,488 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:10:05,488 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:10:05,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:05,505 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:05,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:10:05,512 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/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) [2019-11-15 23:10:05,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:10:05,530 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12673308-7bd5-4d1e-8ff7-47429967a270/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:10:05,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:10:05,559 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:05,744 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:10:05,747 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:10:05,747 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:10:05,748 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:10:05,748 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:10:05,748 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:10:05,748 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:10:05,748 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:10:05,748 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:10:05,748 INFO L131 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2019-11-15 23:10:05,749 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:10:05,749 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:10:05,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:10:05,912 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:10:05,912 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:10:05,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:10:05,913 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:10:05,914 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:10:05,914 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:10:05,914 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:10:05,914 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:10:05,915 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:10:05,916 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:10:05,932 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:10:05,953 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:10:05,955 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:10:05,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:10:05,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:10:05,957 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:10:05,957 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2019-11-15 23:10:05,958 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:10:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:10:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:10:05,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:10:05,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:10:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:10:06,006 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:10:06,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:10:06,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:10:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:10:06,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-15 23:10:06,081 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-11-15 23:10:06,157 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 10 states and 13 transitions. Complement of second has 6 states. [2019-11-15 23:10:06,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 23:10:06,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 23:10:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-11-15 23:10:06,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-15 23:10:06,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:06,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 23:10:06,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:06,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-15 23:10:06,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:10:06,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2019-11-15 23:10:06,163 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:10:06,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-15 23:10:06,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:10:06,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:10:06,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:10:06,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:10:06,164 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:10:06,164 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:10:06,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:10:06,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:10:06,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:10:06,172 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2019-11-15 23:10:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:10:06,176 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-15 23:10:06,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:10:06,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-15 23:10:06,177 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:10:06,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:10:06,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:10:06,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:10:06,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:10:06,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:10:06,178 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:10:06,178 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:10:06,178 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:10:06,179 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 23:10:06,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:10:06,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:10:06,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:10:06,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:10:06 BoogieIcfgContainer [2019-11-15 23:10:06,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:10:06,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:10:06,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:10:06,196 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:10:06,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:10:03" (3/4) ... [2019-11-15 23:10:06,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:10:06,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:10:06,207 INFO L168 Benchmark]: Toolchain (without parser) took 3389.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 950.1 MB in the beginning and 931.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:10:06,208 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:10:06,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:10:06,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:10:06,212 INFO L168 Benchmark]: Boogie Preprocessor took 25.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:10:06,213 INFO L168 Benchmark]: RCFGBuilder took 337.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:10:06,220 INFO L168 Benchmark]: BuchiAutomizer took 2559.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.7 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:10:06,220 INFO L168 Benchmark]: Witness Printer took 8.73 ms. Allocated memory is still 1.2 GB. Free memory is still 931.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:10:06,226 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 408.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 337.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2559.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.7 MB in the end (delta: 167.8 MB). Peak memory consumption was 167.8 MB. Max. memory is 11.5 GB. * Witness Printer took 8.73 ms. Allocated memory is still 1.2 GB. Free memory is still 931.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite118 ukn100 eq166 hnf92 smp77 dnf98 smp100 tf110 neg98 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...