./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7408fe5ba42f5c474832c90e26f3e7ef2342554c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:25:48,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:25:48,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:25:48,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:25:48,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:25:48,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:25:48,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:25:48,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:25:48,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:25:48,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:25:48,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:25:48,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:25:48,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:25:48,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:25:48,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:25:48,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:25:48,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:25:48,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:25:48,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:25:48,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:25:48,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:25:48,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:25:48,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:25:48,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:25:48,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:25:48,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:25:48,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:25:48,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:25:48,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:25:48,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:25:48,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:25:48,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:25:48,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:25:48,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:25:48,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:25:48,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:25:48,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:25:48,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:25:48,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:25:48,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:25:48,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:25:48,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 07:25:48,849 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:25:48,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:25:48,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:25:48,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:25:48,860 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:25:48,861 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 07:25:48,861 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 07:25:48,861 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 07:25:48,861 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 07:25:48,861 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 07:25:48,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 07:25:48,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:25:48,862 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:25:48,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:25:48,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:25:48,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:25:48,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:25:48,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 07:25:48,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 07:25:48,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 07:25:48,864 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:25:48,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:25:48,864 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 07:25:48,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:25:48,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 07:25:48,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:25:48,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:25:48,866 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 07:25:48,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:25:48,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:25:48,866 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 07:25:48,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 07:25:48,867 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_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2019-11-20 07:25:49,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:25:49,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:25:49,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:25:49,055 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:25:49,056 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:25:49,057 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-20 07:25:49,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/data/7ce1eec4e/4efffe932e0740b2990f540baaa8c596/FLAGdaacc12bd [2019-11-20 07:25:49,525 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:25:49,525 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-20 07:25:49,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/data/7ce1eec4e/4efffe932e0740b2990f540baaa8c596/FLAGdaacc12bd [2019-11-20 07:25:49,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/data/7ce1eec4e/4efffe932e0740b2990f540baaa8c596 [2019-11-20 07:25:49,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:25:49,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:25:49,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:25:49,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:25:49,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:25:49,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260da99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49, skipping insertion in model container [2019-11-20 07:25:49,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:25:49,600 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:25:49,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:25:49,900 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:25:49,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:25:49,934 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:25:49,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49 WrapperNode [2019-11-20 07:25:49,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:25:49,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:25:49,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:25:49,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:25:49,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:25:49,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:25:49,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:25:49,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:25:49,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... [2019-11-20 07:25:49,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:25:49,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:25:49,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:25:49,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:25:49,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:25:50,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:25:50,218 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:25:50,219 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 07:25:50,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:50 BoogieIcfgContainer [2019-11-20 07:25:50,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:25:50,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 07:25:50,222 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 07:25:50,224 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 07:25:50,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:25:50,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:25:49" (1/3) ... [2019-11-20 07:25:50,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4182ed52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:25:50, skipping insertion in model container [2019-11-20 07:25:50,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:25:50,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:49" (2/3) ... [2019-11-20 07:25:50,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4182ed52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:25:50, skipping insertion in model container [2019-11-20 07:25:50,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:25:50,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:50" (3/3) ... [2019-11-20 07:25:50,228 INFO L371 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2019-11-20 07:25:50,278 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 07:25:50,278 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 07:25:50,279 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 07:25:50,279 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:25:50,279 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:25:50,279 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 07:25:50,279 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:25:50,280 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 07:25:50,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 07:25:50,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 07:25:50,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:50,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:50,337 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 07:25:50,337 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 07:25:50,337 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 07:25:50,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 07:25:50,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 07:25:50,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:50,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:50,339 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 07:25:50,339 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 07:25:50,347 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2019-11-20 07:25:50,348 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 3#L17-2true assume !(main_~j~0 < 20); 13#L17-3true main_~k~0 := 4; 11#L21-2true assume !true; 8#L21-3true [2019-11-20 07:25:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:50,354 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 07:25:50,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:50,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097146048] [2019-11-20 07:25:50,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:50,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2019-11-20 07:25:50,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:50,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412569774] [2019-11-20 07:25:50,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:50,472 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 07:25:50,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412569774] [2019-11-20 07:25:50,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:50,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 07:25:50,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928261567] [2019-11-20 07:25:50,479 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 07:25:50,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:50,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 07:25:50,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 07:25:50,493 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-11-20 07:25:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:50,498 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-20 07:25:50,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:25:50,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-20 07:25:50,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 07:25:50,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2019-11-20 07:25:50,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 07:25:50,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 07:25:50,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-11-20 07:25:50,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:25:50,507 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 07:25:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-11-20 07:25:50,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-20 07:25:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 07:25:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-20 07:25:50,532 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 07:25:50,532 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 07:25:50,532 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 07:25:50,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-20 07:25:50,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 07:25:50,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:50,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:50,533 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 07:25:50,533 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 07:25:50,534 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 35#L21-3 [2019-11-20 07:25:50,534 INFO L796 eck$LassoCheckResult]: Loop: 35#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 32#L17-2 assume !(main_~j~0 < 20); 33#L17-3 main_~k~0 := 4; 36#L21-2 assume !(main_~k~0 <= 3); 35#L21-3 [2019-11-20 07:25:50,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:50,534 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-20 07:25:50,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:50,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364055067] [2019-11-20 07:25:50,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,542 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:50,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:50,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2019-11-20 07:25:50,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:50,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646312705] [2019-11-20 07:25:50,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:50,555 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:50,556 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2019-11-20 07:25:50,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:50,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539655965] [2019-11-20 07:25:50,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:50,592 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 07:25:50,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539655965] [2019-11-20 07:25:50,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:50,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:25:50,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425808834] [2019-11-20 07:25:50,670 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:50,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:50,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:50,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:50,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 07:25:50,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:50,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:50,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:50,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-20 07:25:50,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:50,672 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:50,691 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 07:25:50,702 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 07:25:50,714 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 07:25:50,774 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:50,774 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:25:50,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:50,791 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:50,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 07:25:50,800 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:50,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:50,810 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:50,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 07:25:50,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 07:25:50,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 07:25:50,832 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:50,832 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:50,832 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:50,832 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:50,832 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:25:50,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:50,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:50,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:50,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-20 07:25:50,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:50,833 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:50,834 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 07:25:50,841 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 07:25:50,853 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 07:25:50,900 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:50,903 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:50,908 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 07:25:50,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:50,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:25:50,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:50,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:50,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:50,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:25:50,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:25:50,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:50,931 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 07:25:50,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:50,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:25:50,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:50,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:50,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:50,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:25:50,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:25:50,942 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:25:50,948 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 07:25:50,949 INFO L444 ModelExtractionUtils]: 0 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_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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) [2019-11-20 07:25:50,959 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:25:50,959 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 07:25:50,959 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:25:50,960 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:50,965 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 07:25:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:51,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:51,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:51,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:51,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:51,071 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 07:25:51,074 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 07:25:51,075 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-20 07:25:51,110 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 4 states. [2019-11-20 07:25:51,113 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 07:25:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 07:25:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-20 07:25:51,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 07:25:51,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:51,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 07:25:51,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:51,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2019-11-20 07:25:51,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:51,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2019-11-20 07:25:51,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-20 07:25:51,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2019-11-20 07:25:51,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 07:25:51,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 07:25:51,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2019-11-20 07:25:51,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 07:25:51,126 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2019-11-20 07:25:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2019-11-20 07:25:51,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-20 07:25:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 07:25:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2019-11-20 07:25:51,130 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2019-11-20 07:25:51,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:51,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:25:51,131 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2019-11-20 07:25:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:51,142 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2019-11-20 07:25:51,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:51,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2019-11-20 07:25:51,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-20 07:25:51,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2019-11-20 07:25:51,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 07:25:51,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 07:25:51,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2019-11-20 07:25:51,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 07:25:51,145 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-20 07:25:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2019-11-20 07:25:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 07:25:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 07:25:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2019-11-20 07:25:51,147 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-20 07:25:51,147 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-20 07:25:51,148 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 07:25:51,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2019-11-20 07:25:51,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-20 07:25:51,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:51,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:51,149 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 07:25:51,149 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 07:25:51,149 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 112#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 113#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-20 07:25:51,149 INFO L796 eck$LassoCheckResult]: Loop: 107#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-20 07:25:51,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:51,152 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-20 07:25:51,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:51,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973820500] [2019-11-20 07:25:51,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:51,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:51,180 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-20 07:25:51,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:51,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385603600] [2019-11-20 07:25:51,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:51,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:51,197 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2019-11-20 07:25:51,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:51,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077513607] [2019-11-20 07:25:51,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:51,216 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:51,268 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:51,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:51,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:51,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:51,268 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 07:25:51,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:51,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:51,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:51,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-20 07:25:51,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:51,269 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:51,270 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 07:25:51,275 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 07:25:51,292 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 07:25:51,352 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:51,352 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:51,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:51,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 07:25:51,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 07:25:51,365 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=9} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:25:51,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:51,379 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:51,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 07:25:51,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 07:25:53,558 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 07:25:53,561 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:53,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:53,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:53,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:53,562 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:25:53,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:53,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:53,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:53,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-20 07:25:53,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:53,562 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:53,563 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 07:25:53,569 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 07:25:53,593 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 07:25:53,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:53,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:53,666 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 07:25:53,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:53,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:53,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:53,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:53,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:25:53,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:53,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:53,698 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 07:25:53,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:53,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:53,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:53,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:53,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:25:53,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:25:53,722 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:25:53,747 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 07:25:53,747 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:53,754 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:25:53,760 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 07:25:53,760 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:25:53,760 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2019-11-20 07:25:53,766 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-20 07:25:53,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:53,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:53,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:53,847 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:25:53,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:53,848 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 07:25:53,849 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2019-11-20 07:25:53,849 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-20 07:25:53,910 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 20 states and 33 transitions. Complement of second has 6 states. [2019-11-20 07:25:53,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 07:25:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 07:25:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-20 07:25:53,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-20 07:25:53,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:53,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-20 07:25:53,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:53,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 07:25:53,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:53,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2019-11-20 07:25:53,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 07:25:53,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2019-11-20 07:25:53,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 07:25:53,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-20 07:25:53,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2019-11-20 07:25:53,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 07:25:53,916 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2019-11-20 07:25:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2019-11-20 07:25:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 07:25:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:25:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2019-11-20 07:25:53,923 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-20 07:25:53,923 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-20 07:25:53,924 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 07:25:53,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2019-11-20 07:25:53,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 07:25:53,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:53,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:53,928 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 07:25:53,928 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 07:25:53,928 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 187#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 188#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 183#L17-2 assume !(main_~j~0 < 20); 184#L17-3 main_~k~0 := 4; 191#L21-2 [2019-11-20 07:25:53,929 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2019-11-20 07:25:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:53,929 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-11-20 07:25:53,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:53,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514837038] [2019-11-20 07:25:53,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:25:53,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514837038] [2019-11-20 07:25:53,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857801260] [2019-11-20 07:25:53,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:25:54,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:25:54,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-20 07:25:54,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046477662] [2019-11-20 07:25:54,050 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 07:25:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,050 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2019-11-20 07:25:54,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:54,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729992817] [2019-11-20 07:25:54,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:54,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:54,072 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:54,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:54,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:54,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:54,073 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 07:25:54,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:54,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:54,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-20 07:25:54,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:54,074 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:54,074 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 07:25:54,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:54,103 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:25:54,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:54,117 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:54,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 07:25:54,141 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 07:25:54,150 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 07:25:54,152 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:54,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:54,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:54,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:54,153 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:25:54,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:54,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:54,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-20 07:25:54,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:54,154 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:54,154 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 07:25:54,188 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:54,188 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:54,204 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 07:25:54,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:54,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:25:54,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:54,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:54,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:54,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:25:54,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,213 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:25:54,215 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 07:25:54,216 INFO L444 ModelExtractionUtils]: 0 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_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:54,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:25:54,231 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 07:25:54,231 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:25:54,231 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-20 07:25:54,234 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,270 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,270 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 07:25:54,271 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 07:25:54,271 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2019-11-20 07:25:54,295 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 47 states and 75 transitions. Complement of second has 5 states. [2019-11-20 07:25:54,296 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 07:25:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 07:25:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-20 07:25:54,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-20 07:25:54,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-20 07:25:54,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 07:25:54,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2019-11-20 07:25:54,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 07:25:54,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2019-11-20 07:25:54,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-20 07:25:54,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 07:25:54,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2019-11-20 07:25:54,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 07:25:54,302 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-11-20 07:25:54,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2019-11-20 07:25:54,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2019-11-20 07:25:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 07:25:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2019-11-20 07:25:54,304 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2019-11-20 07:25:54,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:54,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:25:54,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:54,305 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2019-11-20 07:25:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:54,351 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2019-11-20 07:25:54,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:25:54,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2019-11-20 07:25:54,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 07:25:54,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2019-11-20 07:25:54,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 07:25:54,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 07:25:54,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2019-11-20 07:25:54,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 07:25:54,354 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-20 07:25:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2019-11-20 07:25:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 07:25:54,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 07:25:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2019-11-20 07:25:54,357 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-20 07:25:54,357 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-20 07:25:54,357 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 07:25:54,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2019-11-20 07:25:54,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 07:25:54,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:25:54,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:25:54,359 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2019-11-20 07:25:54,359 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 07:25:54,360 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2019-11-20 07:25:54,360 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2019-11-20 07:25:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,360 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2019-11-20 07:25:54,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:54,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693061643] [2019-11-20 07:25:54,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 07:25:54,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693061643] [2019-11-20 07:25:54,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303651058] [2019-11-20 07:25:54,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 07:25:54,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:25:54,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-20 07:25:54,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731012391] [2019-11-20 07:25:54,507 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 07:25:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2019-11-20 07:25:54,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:54,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029571976] [2019-11-20 07:25:54,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:25:54,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:25:54,525 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:54,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:54,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:54,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:54,526 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 07:25:54,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:54,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:54,527 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-20 07:25:54,527 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:54,527 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:54,528 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 07:25:54,554 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:54,554 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:25:54,586 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 07:25:54,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 07:25:54,617 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 07:25:54,619 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:25:54,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:25:54,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:25:54,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:25:54,620 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:25:54,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:25:54,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:25:54,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-20 07:25:54,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:25:54,621 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:25:54,622 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 07:25:54,661 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:25:54,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:25:54,666 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 07:25:54,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:25:54,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:25:54,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:25:54,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:25:54,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:25:54,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:25:54,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:25:54,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:25:54,673 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 07:25:54,673 INFO L444 ModelExtractionUtils]: 0 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_976a7960-4d3a-4bdf-aa74-14e9b53bcd6e/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 07:25:54,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:25:54,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 07:25:54,677 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:25:54,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-20 07:25:54,679 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 07:25:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,712 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,712 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 07:25:54,713 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 07:25:54,713 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-20 07:25:54,724 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-20 07:25:54,725 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 07:25:54,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 07:25:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-20 07:25:54,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-20 07:25:54,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,726 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 07:25:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,765 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,766 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 07:25:54,766 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 07:25:54,766 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-20 07:25:54,777 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-20 07:25:54,778 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 07:25:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 07:25:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-20 07:25:54,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-20 07:25:54,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,780 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 07:25:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,809 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:25:54,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:54,810 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 07:25:54,810 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 1 loop predicates [2019-11-20 07:25:54,810 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-20 07:25:54,824 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 48 transitions. Complement of second has 4 states. [2019-11-20 07:25:54,825 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 07:25:54,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 07:25:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-11-20 07:25:54,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-20 07:25:54,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2019-11-20 07:25:54,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-20 07:25:54,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:25:54,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2019-11-20 07:25:54,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:25:54,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-20 07:25:54,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 07:25:54,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 07:25:54,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 07:25:54,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:25:54,829 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:25:54,829 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:25:54,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:54,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:25:54,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:25:54,829 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-20 07:25:54,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:54,830 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-20 07:25:54,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:25:54,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-20 07:25:54,830 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:25:54,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:25:54,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 07:25:54,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 07:25:54,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 07:25:54,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:25:54,831 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:25:54,831 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:25:54,831 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:25:54,831 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 07:25:54,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:25:54,831 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:25:54,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 07:25:54,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:25:54 BoogieIcfgContainer [2019-11-20 07:25:54,839 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 07:25:54,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:25:54,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:25:54,841 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:25:54,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:50" (3/4) ... [2019-11-20 07:25:54,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 07:25:54,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:25:54,848 INFO L168 Benchmark]: Toolchain (without parser) took 5288.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -117.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:25:54,848 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:25:54,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:25:54,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:25:54,852 INFO L168 Benchmark]: Boogie Preprocessor took 15.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:25:54,852 INFO L168 Benchmark]: RCFGBuilder took 237.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:25:54,853 INFO L168 Benchmark]: BuchiAutomizer took 4618.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:25:54,853 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:25:54,868 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 237.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4618.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 45 SDslu, 34 SDs, 0 SdLazy, 44 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...