./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 0.1.24-678e011 [2019-11-20 01:58:44,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:58:44,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:58:44,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:58:44,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:58:44,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:58:44,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:58:44,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:58:44,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:58:44,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:58:44,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:58:44,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:58:44,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:58:44,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:58:44,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:58:44,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:58:44,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:58:44,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:58:44,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:58:44,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:58:44,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:58:44,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:58:44,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:58:44,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:58:44,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:58:44,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:58:44,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:58:44,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:58:44,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:58:44,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:58:44,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:58:44,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:58:44,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:58:44,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:58:44,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:58:44,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:58:44,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:58:44,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:58:44,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:58:44,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:58:44,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:58:44,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 01:58:44,775 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:58:44,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:58:44,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:58:44,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:58:44,783 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:58:44,784 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:58:44,784 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:58:44,784 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:58:44,784 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:58:44,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:58:44,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:58:44,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:58:44,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:58:44,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:58:44,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:58:44,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:58:44,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:58:44,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:58:44,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:58:44,786 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:58:44,786 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:58:44,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:58:44,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:58:44,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:58:44,787 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:58:44,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:58:44,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:58:44,787 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:58:44,788 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:58:44,788 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 [2019-11-20 01:58:44,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:58:44,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:58:44,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:58:44,939 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:58:44,939 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:58:44,940 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-20 01:58:45,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/data/7529ed283/2cc86b8ca54a49a5ac2356dd1f08c12d/FLAG896acf496 [2019-11-20 01:58:45,404 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:58:45,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-20 01:58:45,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/data/7529ed283/2cc86b8ca54a49a5ac2356dd1f08c12d/FLAG896acf496 [2019-11-20 01:58:45,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/data/7529ed283/2cc86b8ca54a49a5ac2356dd1f08c12d [2019-11-20 01:58:45,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:58:45,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:58:45,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:58:45,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:58:45,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:58:45,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8d5db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45, skipping insertion in model container [2019-11-20 01:58:45,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,450 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:58:45,468 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:58:45,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:58:45,623 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:58:45,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:58:45,708 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:58:45,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45 WrapperNode [2019-11-20 01:58:45,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:58:45,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:58:45,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:58:45,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:58:45,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:58:45,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:58:45,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:58:45,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:58:45,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... [2019-11-20 01:58:45,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:58:45,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:58:45,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:58:45,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:58:45,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:58:45,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:58:45,942 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:58:45,942 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 01:58:45,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:58:45 BoogieIcfgContainer [2019-11-20 01:58:45,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:58:45,944 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:58:45,944 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:58:45,947 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:58:45,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:58:45,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:58:45" (1/3) ... [2019-11-20 01:58:45,949 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39812768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:58:45, skipping insertion in model container [2019-11-20 01:58:45,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:58:45,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:45" (2/3) ... [2019-11-20 01:58:45,950 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39812768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:58:45, skipping insertion in model container [2019-11-20 01:58:45,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:58:45,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:58:45" (3/3) ... [2019-11-20 01:58:45,951 INFO L371 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2019-11-20 01:58:45,997 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:58:45,997 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:58:45,997 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:58:45,997 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:58:45,997 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:58:45,997 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:58:45,997 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:58:45,998 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:58:46,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 01:58:46,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:46,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:58:46,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:58:46,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 01:58:46,035 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:58:46,036 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:58:46,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 01:58:46,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:46,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:58:46,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:58:46,037 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 01:58:46,037 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:58:46,044 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L19-2true [2019-11-20 01:58:46,045 INFO L796 eck$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 [2019-11-20 01:58:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 01:58:46,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328244601] [2019-11-20 01:58:46,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-20 01:58:46,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214406346] [2019-11-20 01:58:46,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,171 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,172 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-20 01:58:46,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827674811] [2019-11-20 01:58:46,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,286 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:46,287 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:46,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:46,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:46,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:58:46,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:46,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:46,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-11-20 01:58:46,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:46,288 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:46,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,468 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:46,469 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:46,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:58:46,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:46,491 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:46,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:58:46,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:46,513 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:46,518 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:58:46,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:58:46,541 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:58:46,544 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:46,544 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:46,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:46,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:46,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:58:46,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:46,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:46,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2019-11-20 01:58:46,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:46,545 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:46,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,638 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:46,643 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:58:46,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:46,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:46,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:46,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:46,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:46,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:46,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:46,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:46,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:46,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:46,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:46,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:46,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:58:46,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:58:46,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:46,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:46,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:46,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:46,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:46,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:46,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:46,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:58:46,721 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 01:58:46,722 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:58:46,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:58:46,742 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:58:46,742 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-20 01:58:46,747 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:58:46,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:46,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:46,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:46,793 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:46,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:46,822 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 01:58:46,823 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-20 01:58:46,865 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. [2019-11-20 01:58:46,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 01:58:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-20 01:58:46,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 01:58:46,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:46,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 01:58:46,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:46,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 01:58:46,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:46,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-20 01:58:46,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:46,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-20 01:58:46,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 01:58:46,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 01:58:46,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-20 01:58:46,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:58:46,881 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 01:58:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-20 01:58:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 01:58:46,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 01:58:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 01:58:46,908 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 01:58:46,908 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 01:58:46,908 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:58:46,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 01:58:46,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:46,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:58:46,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:58:46,910 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 01:58:46,910 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:58:46,910 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 68#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 73#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 69#L19-2 [2019-11-20 01:58:46,910 INFO L796 eck$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 [2019-11-20 01:58:46,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,911 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-20 01:58:46,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839235039] [2019-11-20 01:58:46,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,922 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-20 01:58:46,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901956826] [2019-11-20 01:58:46,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-20 01:58:46,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:46,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625339667] [2019-11-20 01:58:46,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:46,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:46,964 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:46,964 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:46,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:46,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:46,964 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:58:46,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:46,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:46,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:46,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-11-20 01:58:46,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:46,965 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:46,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:46,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,045 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:47,046 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 [2019-11-20 01:58:47,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:58:47,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:47,056 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,072 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:58:47,094 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,102 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:58:47,108 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:47,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:47,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:47,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:47,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:58:47,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:47,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:47,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2019-11-20 01:58:47,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:47,109 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:47,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:47,211 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:47,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:58:47,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:58:47,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:47,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:47,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,271 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:58:47,290 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 01:58:47,290 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 [2019-11-20 01:58:47,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:58:47,298 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:58:47,298 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:58:47,298 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-20 01:58:47,300 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:58:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:47,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:47,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:47,339 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:47,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:47,352 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 01:58:47,353 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 01:58:47,367 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. [2019-11-20 01:58:47,368 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 [2019-11-20 01:58:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 01:58:47,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 01:58:47,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:47,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 01:58:47,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:47,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-20 01:58:47,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:47,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-20 01:58:47,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:47,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 01:58:47,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-20 01:58:47,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 01:58:47,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-20 01:58:47,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:58:47,373 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 01:58:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-20 01:58:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 01:58:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 01:58:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 01:58:47,375 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 01:58:47,375 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 01:58:47,375 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 01:58:47,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-20 01:58:47,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 01:58:47,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:58:47,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:58:47,379 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-11-20 01:58:47,379 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:58:47,379 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 122#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 127#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 128#L19-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 129#L19 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~y~0 - 1; 123#L19-2 [2019-11-20 01:58:47,379 INFO L796 eck$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 [2019-11-20 01:58:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:47,380 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-11-20 01:58:47,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:47,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949082261] [2019-11-20 01:58:47,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,400 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:47,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-20 01:58:47,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:47,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909234892] [2019-11-20 01:58:47,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,421 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:47,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:47,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2019-11-20 01:58:47,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:47,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000078926] [2019-11-20 01:58:47,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:47,449 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:47,474 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:47,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:47,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:47,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:47,474 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:58:47,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:47,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:47,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-11-20 01:58:47,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:47,475 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:47,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,564 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:47,564 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:58:47,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,585 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:47,591 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:58:47,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,607 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,612 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:47,612 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,630 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,634 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:47,634 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,651 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,657 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:47,657 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:47,672 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:58:47,701 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,709 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:58:47,712 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:47,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:47,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:47,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:47,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:58:47,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:47,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:47,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2019-11-20 01:58:47,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:47,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:47,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:47,801 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:47,801 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:47,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,809 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 01:58:47,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,811 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 01:58:47,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 [2019-11-20 01:58:47,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:47,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:58:47,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,861 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 [2019-11-20 01:58:47,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:47,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:47,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:47,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:47,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:47,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:47,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:47,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:47,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:47,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:47,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:47,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:47,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:58:47,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 01:58:47,913 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 01:58:47,914 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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 [2019-11-20 01:58:47,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:58:47,926 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:58:47,926 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:58:47,926 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-20 01:58:47,928 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:58:48,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,026 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:48,037 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 01:58:48,037 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 01:58:48,048 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. [2019-11-20 01:58:48,049 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 [2019-11-20 01:58:48,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 01:58:48,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 01:58:48,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,050 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 01:58:48,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,080 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:48,090 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 [2019-11-20 01:58:48,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 01:58:48,106 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. [2019-11-20 01:58:48,107 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 [2019-11-20 01:58:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:48,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 01:58:48,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 01:58:48,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,108 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 01:58:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,134 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:48,149 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 [2019-11-20 01:58:48,149 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 01:58:48,162 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. [2019-11-20 01:58:48,163 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 [2019-11-20 01:58:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:48,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 01:58:48,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 01:58:48,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 01:58:48,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 01:58:48,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-11-20 01:58:48,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 01:58:48,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-11-20 01:58:48,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 01:58:48,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 01:58:48,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-11-20 01:58:48,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:58:48,167 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-11-20 01:58:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-11-20 01:58:48,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-11-20 01:58:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 01:58:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-20 01:58:48,168 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 01:58:48,168 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 01:58:48,168 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 01:58:48,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-20 01:58:48,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 01:58:48,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:58:48,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:58:48,169 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 01:58:48,169 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 01:58:48,169 INFO L794 eck$LassoCheckResult]: Stem: 268#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 269#L19-2 [2019-11-20 01:58:48,169 INFO L796 eck$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 [2019-11-20 01:58:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,169 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-20 01:58:48,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:48,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655746689] [2019-11-20 01:58:48,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:48,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-11-20 01:58:48,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:48,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807487136] [2019-11-20 01:58:48,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:48,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,194 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2019-11-20 01:58:48,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:58:48,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415936597] [2019-11-20 01:58:48,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:58:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:58:48,209 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:58:48,232 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:48,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:48,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:48,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:48,232 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:58:48,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:48,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:48,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-11-20 01:58:48,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:48,233 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:48,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,320 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:48,320 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:48,329 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:48,334 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:48,340 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:58:48,345 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:58:48,353 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:58:48,363 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:58:48,372 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:58:48,372 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:58:48,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:58:48,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:58:48,373 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:58:48,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:58:48,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:58:48,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration4_Loop [2019-11-20 01:58:48,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:58:48,373 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:58:48,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:58:48,460 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:58:48,461 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:48,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:48,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:48,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:48,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:48,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:48,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:48,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:48,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:48,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:48,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:48,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:48,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:58:48,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:58:48,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:58:48,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:58:48,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:58:48,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:58:48,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:58:48,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:58:48,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:58:48,515 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 01:58:48,515 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_8ec9bcc6-8273-4838-b3f6-480b813f1740/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) [2019-11-20 01:58:48,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:58:48,519 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:58:48,520 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:58:48,520 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-20 01:58:48,522 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:58:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:58:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:58:48,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:58:48,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:58:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:58:48,566 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 01:58:48,566 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-20 01:58:48,580 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. [2019-11-20 01:58:48,581 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 [2019-11-20 01:58:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:58:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-20 01:58:48,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 01:58:48,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 01:58:48,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 01:58:48,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:58:48,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2019-11-20 01:58:48,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:58:48,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-20 01:58:48,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 01:58:48,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 01:58:48,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 01:58:48,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:58:48,584 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:58:48,584 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:58:48,584 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:58:48,584 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 01:58:48,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:58:48,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:58:48,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 01:58:48,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:58:48 BoogieIcfgContainer [2019-11-20 01:58:48,591 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:58:48,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:58:48,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:58:48,592 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:58:48,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:58:45" (3/4) ... [2019-11-20 01:58:48,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:58:48,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:58:48,598 INFO L168 Benchmark]: Toolchain (without parser) took 3164.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -87.3 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,598 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:58:48,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.43 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,600 INFO L168 Benchmark]: Boogie Preprocessor took 13.96 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,600 INFO L168 Benchmark]: RCFGBuilder took 185.62 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,601 INFO L168 Benchmark]: BuchiAutomizer took 2647.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:58:48,601 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:58:48,604 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.43 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.96 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.62 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2647.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.1 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 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 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...