./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:11,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:11,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:11,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:11,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:11,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:11,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:11,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:11,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:11,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:11,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:11,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:11,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:11,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:11,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:11,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:11,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:11,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:11,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:11,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:11,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:11,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:11,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:11,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:11,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:11,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:11,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:11,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:11,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:11,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:11,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:11,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:11,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:11,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:11,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:11,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:11,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:11,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:11,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:11,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:11,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:11,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:54:11,071 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:11,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:11,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:11,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:11,072 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:11,073 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:54:11,073 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:54:11,073 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:54:11,073 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:54:11,073 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:54:11,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:54:11,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:11,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:11,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:11,075 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:54:11,076 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:11,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:54:11,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:11,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:11,076 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:54:11,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:11,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:11,077 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:54:11,078 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:54:11,078 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/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 -> 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 [2019-10-22 08:54:11,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:11,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:11,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:11,128 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:11,131 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:11,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2019-10-22 08:54:11,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/data/5c2766aff/d32b13b9ab43427f9d4c708cffe64199/FLAG867d74139 [2019-10-22 08:54:11,517 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:11,518 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2019-10-22 08:54:11,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/data/5c2766aff/d32b13b9ab43427f9d4c708cffe64199/FLAG867d74139 [2019-10-22 08:54:11,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/data/5c2766aff/d32b13b9ab43427f9d4c708cffe64199 [2019-10-22 08:54:11,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:11,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:11,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:11,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:11,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:11,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb6f821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11, skipping insertion in model container [2019-10-22 08:54:11,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,551 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:11,568 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:11,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:11,694 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:11,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:11,778 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11 WrapperNode [2019-10-22 08:54:11,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:11,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:11,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:11,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:11,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:11,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:11,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:11,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:11,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... [2019-10-22 08:54:11,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:11,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:11,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:11,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:11,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 [2019-10-22 08:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:11,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:12,036 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:12,036 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:54:12,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12 BoogieIcfgContainer [2019-10-22 08:54:12,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:12,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:54:12,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:54:12,041 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:54:12,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:12,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:54:11" (1/3) ... [2019-10-22 08:54:12,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4066dd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:12,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:11" (2/3) ... [2019-10-22 08:54:12,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4066dd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:54:12, skipping insertion in model container [2019-10-22 08:54:12,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:54:12,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12" (3/3) ... [2019-10-22 08:54:12,046 INFO L371 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined.c [2019-10-22 08:54:12,088 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:54:12,088 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:54:12,088 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:54:12,089 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:12,089 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:12,089 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:54:12,089 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:12,089 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:54:12,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:54:12,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-10-22 08:54:12,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:12,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:12,125 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:54:12,125 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:54:12,126 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:54:12,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:54:12,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-10-22 08:54:12,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:12,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:12,127 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:54:12,127 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:54:12,134 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 4#L13-2true [2019-10-22 08:54:12,134 INFO L793 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 4#L13-2true [2019-10-22 08:54:12,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,140 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 08:54:12,147 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924282988] [2019-10-22 08:54:12,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,240 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,243 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-10-22 08:54:12,243 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832108007] [2019-10-22 08:54:12,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,262 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-10-22 08:54:12,264 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409597722] [2019-10-22 08:54:12,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,280 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,344 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:12,345 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:12,345 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:12,346 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:12,346 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:54:12,346 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:12,346 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:12,346 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:12,347 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2019-10-22 08:54:12,347 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:12,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:12,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,481 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:12,482 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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) [2019-10-22 08:54:12,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:12,501 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 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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) [2019-10-22 08:54:12,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:54:12,527 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:12,542 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:54:12,544 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:12,544 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:12,545 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:12,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:12,545 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:54:12,545 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:12,545 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:12,545 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:12,545 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2019-10-22 08:54:12,545 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:12,546 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:12,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,692 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:12,698 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:54:12,701 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 [2019-10-22 08:54:12,702 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:54:12,702 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:54:12,703 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:54:12,703 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:54:12,703 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:54:12,705 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:54:12,705 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:54:12,719 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:54:12,724 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:54:12,726 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:54:12,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:54:12,731 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:54:12,732 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:54:12,732 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 08:54:12,736 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:54:12,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:12,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:54:12,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:12,782 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:54:12,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:12,798 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 [2019-10-22 08:54:12,800 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2019-10-22 08:54:12,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 23 states and 39 transitions. Complement of second has 5 states. [2019-10-22 08:54:12,852 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 [2019-10-22 08:54:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-10-22 08:54:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-10-22 08:54:12,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2019-10-22 08:54:12,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:12,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2019-10-22 08:54:12,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:12,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 08:54:12,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:12,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 39 transitions. [2019-10-22 08:54:12,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:54:12,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 9 states and 16 transitions. [2019-10-22 08:54:12,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:54:12,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 08:54:12,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2019-10-22 08:54:12,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:54:12,871 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2019-10-22 08:54:12,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2019-10-22 08:54:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-10-22 08:54:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:54:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2019-10-22 08:54:12,897 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2019-10-22 08:54:12,897 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2019-10-22 08:54:12,897 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:54:12,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2019-10-22 08:54:12,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:54:12,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:12,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:12,899 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:54:12,899 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:54:12,899 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 61#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2019-10-22 08:54:12,900 INFO L793 eck$LassoCheckResult]: Loop: 63#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 65#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2019-10-22 08:54:12,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-10-22 08:54:12,900 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577321885] [2019-10-22 08:54:12,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,909 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 1 times [2019-10-22 08:54:12,909 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775254519] [2019-10-22 08:54:12,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,927 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:12,928 INFO L82 PathProgramCache]: Analyzing trace with hash 961679, now seen corresponding path program 1 times [2019-10-22 08:54:12,928 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:12,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352853650] [2019-10-22 08:54:12,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:12,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:12,939 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:12,971 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:12,971 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:12,971 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:12,972 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:12,972 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:54:12,972 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:12,972 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:12,972 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:12,972 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2019-10-22 08:54:12,972 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:12,972 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:12,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:12,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,061 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:13,062 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 [2019-10-22 08:54:13,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:13,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:13,074 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:13,074 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/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 [2019-10-22 08:54:13,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:13,082 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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 [2019-10-22 08:54:13,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:54:13,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:54:13,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:54:13,138 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:13,138 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:13,138 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:13,138 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:13,138 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:54:13,138 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:13,139 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:13,139 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:13,139 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2019-10-22 08:54:13,139 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:13,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:13,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:13,211 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:54:13,212 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 [2019-10-22 08:54:13,212 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:54:13,213 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:54:13,213 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:54:13,213 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:54:13,216 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:54:13,217 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:54:13,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:54:13,222 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 [2019-10-22 08:54:13,225 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:54:13,225 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:54:13,226 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:54:13,226 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:54:13,226 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:54:13,227 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:54:13,227 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:54:13,240 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:54:13,245 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:54:13,246 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:54:13,247 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:54:13,247 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:54:13,247 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:54:13,247 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 08:54:13,248 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:54:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:54:13,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,286 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:54:13,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,316 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 [2019-10-22 08:54:13,316 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-10-22 08:54:13,348 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 22 states and 34 transitions. Complement of second has 7 states. [2019-10-22 08:54:13,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 08:54:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:54:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-10-22 08:54:13,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-10-22 08:54:13,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:54:13,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 08:54:13,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2019-10-22 08:54:13,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:54:13,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 23 transitions. [2019-10-22 08:54:13,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:54:13,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-10-22 08:54:13,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 23 transitions. [2019-10-22 08:54:13,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:54:13,357 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-10-22 08:54:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 23 transitions. [2019-10-22 08:54:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-22 08:54:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 08:54:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2019-10-22 08:54:13,358 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-10-22 08:54:13,358 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-10-22 08:54:13,359 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:54:13,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2019-10-22 08:54:13,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:54:13,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:54:13,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:54:13,360 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-10-22 08:54:13,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:54:13,360 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 127#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 128#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 140#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 137#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 135#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2019-10-22 08:54:13,360 INFO L793 eck$LassoCheckResult]: Loop: 130#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 131#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2019-10-22 08:54:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,360 INFO L82 PathProgramCache]: Analyzing trace with hash 924176399, now seen corresponding path program 1 times [2019-10-22 08:54:13,361 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246921676] [2019-10-22 08:54:13,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,438 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246921676] [2019-10-22 08:54:13,439 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:13,439 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:54:13,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473000132] [2019-10-22 08:54:13,442 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:54:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 2 times [2019-10-22 08:54:13,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:13,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261789037] [2019-10-22 08:54:13,443 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:13,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:13,456 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:13,487 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:13,487 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:13,487 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:13,487 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:13,488 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:54:13,488 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:13,488 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:13,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:13,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2019-10-22 08:54:13,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:13,488 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:13,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,559 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:13,560 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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) [2019-10-22 08:54:13,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:13,566 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:13,570 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:54:13,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:54:13,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:54:13,579 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b699d4de-f339-4823-9516-41b2c91f8459/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) [2019-10-22 08:54:13,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:54:13,595 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 [2019-10-22 08:54:13,663 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:54:13,665 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:54:13,665 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:54:13,665 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:54:13,665 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:54:13,665 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:54:13,665 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:54:13,665 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:54:13,665 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:54:13,665 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2019-10-22 08:54:13,665 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:54:13,666 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:54:13,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:54:13,732 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:54:13,732 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:54:13,733 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 [2019-10-22 08:54:13,733 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:54:13,734 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:54:13,734 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:54:13,734 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:54:13,736 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:54:13,736 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:54:13,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:54:13,745 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 [2019-10-22 08:54:13,747 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:54:13,748 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:54:13,748 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:54:13,748 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:54:13,749 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:54:13,749 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:54:13,749 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:54:13,753 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:54:13,762 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 08:54:13,766 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:54:13,767 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:54:13,767 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:54:13,767 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:54:13,767 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 08:54:13,768 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:54:13,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:54:13,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:13,797 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:54:13,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:13,809 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 [2019-10-22 08:54:13,810 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-10-22 08:54:13,835 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 43 states and 65 transitions. Complement of second has 7 states. [2019-10-22 08:54:13,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 08:54:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:54:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-10-22 08:54:13,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:54:13,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 08:54:13,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-10-22 08:54:13,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:54:13,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 65 transitions. [2019-10-22 08:54:13,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:54:13,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 45 transitions. [2019-10-22 08:54:13,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 08:54:13,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-10-22 08:54:13,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 45 transitions. [2019-10-22 08:54:13,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:54:13,841 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 45 transitions. [2019-10-22 08:54:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 45 transitions. [2019-10-22 08:54:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2019-10-22 08:54:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:54:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2019-10-22 08:54:13,844 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 30 transitions. [2019-10-22 08:54:13,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:13,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:13,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:13,848 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 5 states. [2019-10-22 08:54:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:13,885 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2019-10-22 08:54:13,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:13,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-10-22 08:54:13,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:54:13,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-10-22 08:54:13,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:54:13,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:54:13,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:54:13,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:54:13,888 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:13,888 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:13,888 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:13,888 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:54:13,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:13,888 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:54:13,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:54:13,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:54:13 BoogieIcfgContainer [2019-10-22 08:54:13,895 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:54:13,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:13,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:13,896 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:13,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:12" (3/4) ... [2019-10-22 08:54:13,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:13,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:13,903 INFO L168 Benchmark]: Toolchain (without parser) took 2365.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.9 MB in the beginning and 935.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 157.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:13,903 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:13,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:13,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:13,905 INFO L168 Benchmark]: Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:13,905 INFO L168 Benchmark]: RCFGBuilder took 213.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:13,906 INFO L168 Benchmark]: BuchiAutomizer took 1857.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.1 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:13,906 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 1.2 GB. Free memory is still 935.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:13,909 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 213.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1857.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.1 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.67 ms. Allocated memory is still 1.2 GB. Free memory is still 935.1 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...