./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 535f92a2734d803c22d5e10e2200913cae078252 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:14:43,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:14:43,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:14:43,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:14:43,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:14:43,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:14:43,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:14:43,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:14:43,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:14:43,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:14:43,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:14:43,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:14:43,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:14:43,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:14:43,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:14:43,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:14:43,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:14:43,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:14:43,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:14:43,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:14:43,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:14:43,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:14:43,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:14:43,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:14:43,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:14:43,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:14:43,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:14:43,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:14:43,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:14:43,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:14:43,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:14:43,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:14:43,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:14:43,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:14:43,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:14:43,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:14:43,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:14:43,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:14:43,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:14:43,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:14:43,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:14:43,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:14:43,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:14:43,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:14:43,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:14:43,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:14:43,830 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:14:43,831 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:14:43,831 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:14:43,831 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:14:43,831 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:14:43,831 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:14:43,832 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:14:43,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:14:43,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:14:43,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:14:43,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:14:43,833 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:14:43,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:14:43,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:14:43,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:14:43,834 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:14:43,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:14:43,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:14:43,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:14:43,835 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:14:43,836 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:14:43,836 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_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 535f92a2734d803c22d5e10e2200913cae078252 [2019-12-07 12:14:43,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:14:43,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:14:43,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:14:43,958 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:14:43,959 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:14:43,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2019-12-07 12:14:44,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/data/6c6edb46f/0055b29d85784448ad05b4e0d01444a6/FLAGfbb4067c7 [2019-12-07 12:14:44,319 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:14:44,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2019-12-07 12:14:44,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/data/6c6edb46f/0055b29d85784448ad05b4e0d01444a6/FLAGfbb4067c7 [2019-12-07 12:14:44,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/data/6c6edb46f/0055b29d85784448ad05b4e0d01444a6 [2019-12-07 12:14:44,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:14:44,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:14:44,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:14:44,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:14:44,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:14:44,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b32c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44, skipping insertion in model container [2019-12-07 12:14:44,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:14:44,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:14:44,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:14:44,897 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:14:44,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:14:44,949 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:14:44,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44 WrapperNode [2019-12-07 12:14:44,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:14:44,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:14:44,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:14:44,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:14:44,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:14:44,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:14:44,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:14:44,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:14:44,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... [2019-12-07 12:14:44,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:14:44,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:14:44,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:14:44,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:14:44,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:14:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:14:45,112 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:14:45,112 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 12:14:45,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:14:45 BoogieIcfgContainer [2019-12-07 12:14:45,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:14:45,113 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:14:45,113 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:14:45,115 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:14:45,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:14:45,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:14:44" (1/3) ... [2019-12-07 12:14:45,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@735393e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:14:45, skipping insertion in model container [2019-12-07 12:14:45,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:14:45,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:14:44" (2/3) ... [2019-12-07 12:14:45,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@735393e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:14:45, skipping insertion in model container [2019-12-07 12:14:45,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:14:45,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:14:45" (3/3) ... [2019-12-07 12:14:45,118 INFO L371 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2019-12-07 12:14:45,147 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:14:45,147 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:14:45,147 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:14:45,147 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:14:45,147 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:14:45,147 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:14:45,148 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:14:45,148 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:14:45,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 12:14:45,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-12-07 12:14:45,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:14:45,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:14:45,173 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:14:45,173 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:14:45,173 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:14:45,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 12:14:45,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-12-07 12:14:45,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:14:45,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:14:45,174 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 12:14:45,174 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:14:45,179 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 8#L10-2true [2019-12-07 12:14:45,179 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2019-12-07 12:14:45,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,183 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 12:14:45,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:14:45,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458818365] [2019-12-07 12:14:45,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:14:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,250 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:14:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,250 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-12-07 12:14:45,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:14:45,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364911844] [2019-12-07 12:14:45,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:14:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:14:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 12:14:45,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:14:45,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494902716] [2019-12-07 12:14:45,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:14:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:14:45,300 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:14:45,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:14:45,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:14:45,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:14:45,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:14:45,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:14:45,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:14:45,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2019-12-07 12:14:45,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:14:45,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:14:45,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,393 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:14:45,393 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,406 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:14:45,406 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,414 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:14:45,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,418 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:14:45,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:14:45,436 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:14:45,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:14:45,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:14:45,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:14:45,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:14:45,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:14:45,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:14:45,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2019-12-07 12:14:45,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:14:45,437 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:14:45,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,490 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:14:45,494 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:14:45,505 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:14:45,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:14:45,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:14:45,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:14:45,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:14:45,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:14:45,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:14:45,531 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:14:45,531 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_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:14:45,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:14:45,535 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:14:45,536 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-12-07 12:14:45,539 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:14:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:14:45,564 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:14:45,564 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:14:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:14:45,571 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:14:45,571 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:14:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:14:45,581 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 [2019-12-07 12:14:45,582 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2019-12-07 12:14:45,608 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 21 states and 29 transitions. Complement of second has 5 states. [2019-12-07 12:14:45,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 12:14:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 12:14:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-12-07 12:14:45,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 1 letters. [2019-12-07 12:14:45,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 12:14:45,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 12:14:45,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2019-12-07 12:14:45,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:14:45,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 5 states and 7 transitions. [2019-12-07 12:14:45,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 12:14:45,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 12:14:45,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-12-07 12:14:45,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:14:45,618 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 12:14:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-12-07 12:14:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-12-07 12:14:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:14:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-12-07 12:14:45,634 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 12:14:45,634 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 12:14:45,634 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:14:45,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-12-07 12:14:45,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:14:45,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:14:45,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:14:45,635 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:14:45,635 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:14:45,636 INFO L794 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 59#L10-2 assume !(main_~i~0 < 100); 60#L10-3 main_~j~0 := 5; 61#L15-2 [2019-12-07 12:14:45,636 INFO L796 eck$LassoCheckResult]: Loop: 61#L15-2 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 61#L15-2 [2019-12-07 12:14:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2019-12-07 12:14:45,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:14:45,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025370135] [2019-12-07 12:14:45,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:14:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:14:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:14:45,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025370135] [2019-12-07 12:14:45,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:14:45,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:14:45,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980330628] [2019-12-07 12:14:45,663 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 12:14:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,663 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2019-12-07 12:14:45,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:14:45,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805302542] [2019-12-07 12:14:45,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:14:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:14:45,670 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:14:45,681 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:14:45,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:14:45,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:14:45,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:14:45,681 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:14:45,681 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:14:45,681 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:14:45,681 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2019-12-07 12:14:45,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:14:45,682 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:14:45,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,728 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:14:45,728 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,734 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:14:45,734 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,741 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:14:45,741 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:14:45,745 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:14:45,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:14:45,757 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:14:45,758 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:14:45,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:14:45,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:14:45,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:14:45,759 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:14:45,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:14:45,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:14:45,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2019-12-07 12:14:45,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:14:45,759 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:14:45,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:14:45,800 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:14:45,800 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:14:45,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:14:45,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:14:45,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:14:45,820 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:14:45,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:14:45,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:14:45,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:14:45,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:14:45,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:14:45,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:14:45,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:14:45,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:14:45,837 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 12:14:45,837 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_04a7b8a6-033f-42ba-a661-f62fe9a48943/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:14:45,843 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:14:45,844 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 12:14:45,844 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:14:45,844 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2019-12-07 12:14:45,845 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 12:14:45,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:14:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:14:45,863 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:14:45,863 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:14:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:14:45,867 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:14:45,868 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:14:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:14:45,868 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 [2019-12-07 12:14:45,868 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 12:14:45,871 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 6 states and 8 transitions. Complement of second has 2 states. [2019-12-07 12:14:45,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 12:14:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 12:14:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2019-12-07 12:14:45,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 12:14:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 12:14:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 12:14:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:14:45,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2019-12-07 12:14:45,874 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:14:45,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2019-12-07 12:14:45,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:14:45,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:14:45,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:14:45,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:14:45,875 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:14:45,875 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:14:45,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:14:45,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:14:45,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:14:45,878 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-12-07 12:14:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:14:45,879 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 12:14:45,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:14:45,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 12:14:45,880 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:14:45,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:14:45,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:14:45,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:14:45,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:14:45,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:14:45,880 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:14:45,880 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:14:45,880 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:14:45,881 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:14:45,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:14:45,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:14:45,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:14:45,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:14:45 BoogieIcfgContainer [2019-12-07 12:14:45,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:14:45,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:14:45,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:14:45,885 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:14:45,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:14:45" (3/4) ... [2019-12-07 12:14:45,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:14:45,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:14:45,889 INFO L168 Benchmark]: Toolchain (without parser) took 1118.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 939.8 MB in the beginning and 930.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:14:45,890 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:14:45,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:14:45,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.18 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:14:45,891 INFO L168 Benchmark]: Boogie Preprocessor took 11.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:14:45,892 INFO L168 Benchmark]: RCFGBuilder took 125.81 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:14:45,892 INFO L168 Benchmark]: BuchiAutomizer took 771.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.8 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:14:45,892 INFO L168 Benchmark]: Witness Printer took 2.73 ms. Allocated memory is still 1.1 GB. Free memory is still 930.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:14:45,894 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.18 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.31 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 125.81 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 771.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.8 MB in the end (delta: 146.6 MB). Peak memory consumption was 146.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.73 ms. Allocated memory is still 1.1 GB. Free memory is still 930.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...