./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/seq-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/seq-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63d818ac17d423e56496424f9fa44743b17c8897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:14,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:14,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:14,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:14,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:14,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:14,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:14,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:14,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:14,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:14,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:14,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:14,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:14,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:14,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:14,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:14,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:14,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:14,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:14,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:14,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:14,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:14,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:14,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:14,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:14,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:14,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:14,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:14,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:14,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:14,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:14,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:14,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:14,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:14,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:14,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:14,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:14,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:14,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:14,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:14,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:14,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:54:14,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:14,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:14,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:14,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:14,829 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:14,829 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:54:14,829 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:54:14,829 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:54:14,829 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:54:14,830 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:54:14,830 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:54:14,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:14,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:14,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:54:14,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:54:14,832 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:14,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:14,832 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:54:14,832 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:14,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:54:14,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:14,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:14,833 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:54:14,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:14,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:14,833 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:54:14,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:54:14,834 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_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63d818ac17d423e56496424f9fa44743b17c8897 [2019-11-25 08:54:14,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:14,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:14,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:14,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:14,968 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:14,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/seq-3.i [2019-11-25 08:54:15,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/data/c2760adfc/45fda3e9647d43b0ae8b56b36a5e4ced/FLAG2d154b500 [2019-11-25 08:54:15,427 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:15,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/sv-benchmarks/c/loop-invgen/seq-3.i [2019-11-25 08:54:15,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/data/c2760adfc/45fda3e9647d43b0ae8b56b36a5e4ced/FLAG2d154b500 [2019-11-25 08:54:15,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/data/c2760adfc/45fda3e9647d43b0ae8b56b36a5e4ced [2019-11-25 08:54:15,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:15,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:15,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:15,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:15,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:15,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:15" (1/1) ... [2019-11-25 08:54:15,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48697b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:15, skipping insertion in model container [2019-11-25 08:54:15,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:15" (1/1) ... [2019-11-25 08:54:15,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:15,872 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:16,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:16,047 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:16,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:16,136 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:16,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16 WrapperNode [2019-11-25 08:54:16,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:16,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:16,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:16,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:16,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:16,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:16,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:16,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:16,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... [2019-11-25 08:54:16,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:16,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:16,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:16,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:16,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:16,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:16,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:16,399 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:16,399 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:54:16,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:16 BoogieIcfgContainer [2019-11-25 08:54:16,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:16,402 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:54:16,402 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:54:16,404 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:54:16,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:16,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:54:15" (1/3) ... [2019-11-25 08:54:16,405 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49c64de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:16, skipping insertion in model container [2019-11-25 08:54:16,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:16,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:16" (2/3) ... [2019-11-25 08:54:16,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49c64de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:16, skipping insertion in model container [2019-11-25 08:54:16,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:16,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:16" (3/3) ... [2019-11-25 08:54:16,407 INFO L371 chiAutomizerObserver]: Analyzing ICFG seq-3.i [2019-11-25 08:54:16,454 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:54:16,454 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:54:16,454 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:54:16,455 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:16,455 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:16,455 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:54:16,455 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:16,455 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:54:16,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-25 08:54:16,496 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:54:16,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:16,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:16,505 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:54:16,525 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:54:16,525 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:54:16,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-25 08:54:16,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:54:16,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:16,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:16,527 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:54:16,527 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:54:16,542 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L16true assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 8#L17true assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 7#L18-2true [2019-11-25 08:54:16,542 INFO L796 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i0~0 < main_~n0~0);main_#t~post3 := main_~i0~0;main_~i0~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 7#L18-2true [2019-11-25 08:54:16,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2019-11-25 08:54:16,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:16,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043339771] [2019-11-25 08:54:16,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2019-11-25 08:54:16,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:16,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704882149] [2019-11-25 08:54:16,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,640 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:16,641 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2019-11-25 08:54:16,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:16,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223046146] [2019-11-25 08:54:16,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:16,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:16,714 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:16,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:16,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:16,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:16,716 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:16,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:16,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:16,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:16,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2019-11-25 08:54:16,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:16,717 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:16,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,828 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:16,831 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:16,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:16,837 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:16,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:16,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:54:16,960 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:16,962 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:16,962 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:16,962 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:16,962 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:16,962 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:16,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:16,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:16,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:16,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2019-11-25 08:54:16,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:16,963 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:16,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:16,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,034 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:17,038 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:54:17,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:17,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:17,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:17,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:17,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:17,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:17,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:17,054 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:17,061 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:54:17,061 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/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) [2019-11-25 08:54:17,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:17,073 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,074 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:17,075 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i0~0, ULTIMATE.start_main_~n0~0) = -1*ULTIMATE.start_main_~i0~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2019-11-25 08:54:17,079 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:54:17,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:17,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:17,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:17,148 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:17,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:17,165 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:54:17,167 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 2 states. [2019-11-25 08:54:17,229 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 2 states. Result 38 states and 54 transitions. Complement of second has 5 states. [2019-11-25 08:54:17,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:54:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2019-11-25 08:54:17,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-25 08:54:17,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-25 08:54:17,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-25 08:54:17,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 54 transitions. [2019-11-25 08:54:17,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:54:17,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 11 states and 14 transitions. [2019-11-25 08:54:17,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-25 08:54:17,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-25 08:54:17,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-25 08:54:17,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:17,249 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-25 08:54:17,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-25 08:54:17,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-25 08:54:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-25 08:54:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-25 08:54:17,275 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-25 08:54:17,276 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-25 08:54:17,276 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:54:17,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-25 08:54:17,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:54:17,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:17,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:17,281 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:54:17,281 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:54:17,282 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 95#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 96#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 92#L18-2 assume !(main_~i0~0 < main_~n0~0); 87#L18-3 main_~i1~0 := 0; 88#L23-2 [2019-11-25 08:54:17,282 INFO L796 eck$LassoCheckResult]: Loop: 88#L23-2 assume !!(main_~i1~0 < main_~n1~0);main_#t~post5 := main_~i1~0;main_~i1~0 := 1 + main_#t~post5;havoc main_#t~post5;main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 88#L23-2 [2019-11-25 08:54:17,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,282 INFO L82 PathProgramCache]: Analyzing trace with hash 29742571, now seen corresponding path program 1 times [2019-11-25 08:54:17,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533746586] [2019-11-25 08:54:17,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,308 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2019-11-25 08:54:17,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599900201] [2019-11-25 08:54:17,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash 922019734, now seen corresponding path program 1 times [2019-11-25 08:54:17,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500791850] [2019-11-25 08:54:17,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,327 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:17,342 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:17,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:17,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:17,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:17,343 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:17,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:17,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:17,343 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2019-11-25 08:54:17,343 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:17,344 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:17,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,401 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:17,401 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:17,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:17,409 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,413 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:17,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:17,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:17,421 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:17,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:54:17,567 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:17,569 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:17,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:17,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:17,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:17,569 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:17,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:17,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:17,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2019-11-25 08:54:17,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:17,569 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:17,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,617 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:17,618 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:54:17,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:17,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:17,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:17,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:17,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:17,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:17,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:17,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:17,629 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:54:17,629 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,633 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:17,633 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:54:17,633 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:17,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0, ULTIMATE.start_main_~n1~0) = -1*ULTIMATE.start_main_~i1~0 + 1*ULTIMATE.start_main_~n1~0 Supporting invariants [] [2019-11-25 08:54:17,635 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:54:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:17,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:17,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:17,669 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:17,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:17,670 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:54:17,670 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6 Second operand 2 states. [2019-11-25 08:54:17,686 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2019-11-25 08:54:17,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:54:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-25 08:54:17,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-25 08:54:17,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-25 08:54:17,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:54:17,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:17,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2019-11-25 08:54:17,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:17,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2019-11-25 08:54:17,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-25 08:54:17,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-25 08:54:17,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-25 08:54:17,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:17,691 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-25 08:54:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-25 08:54:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:54:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:54:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-25 08:54:17,693 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-25 08:54:17,693 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-25 08:54:17,693 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:54:17,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-25 08:54:17,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:17,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:17,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:17,695 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:17,695 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:54:17,695 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 159#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 160#L18-2 assume !(main_~i0~0 < main_~n0~0); 151#L18-3 main_~i1~0 := 0; 152#L23-2 assume !(main_~i1~0 < main_~n1~0); 156#L23-3 main_~j1~0 := 0; 153#L28-2 [2019-11-25 08:54:17,695 INFO L796 eck$LassoCheckResult]: Loop: 153#L28-2 assume !!(main_~j1~0 < main_~n0~0 + main_~n1~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 154#L4 assume !(0 == __VERIFIER_assert_~cond); 162#L4-2 main_#t~post7 := main_~j1~0;main_~j1~0 := 1 + main_#t~post7;havoc main_#t~post7;main_#t~post8 := main_~k~0;main_~k~0 := main_#t~post8 - 1;havoc main_#t~post8; 153#L28-2 [2019-11-25 08:54:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1482159343, now seen corresponding path program 1 times [2019-11-25 08:54:17,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974754095] [2019-11-25 08:54:17,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash 75696, now seen corresponding path program 1 times [2019-11-25 08:54:17,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,707 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762540782] [2019-11-25 08:54:17,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:17,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:17,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1549828768, now seen corresponding path program 1 times [2019-11-25 08:54:17,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:17,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217863407] [2019-11-25 08:54:17,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:17,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217863407] [2019-11-25 08:54:17,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:17,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:54:17,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000338514] [2019-11-25 08:54:17,841 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:17,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:17,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:17,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:17,841 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:17,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:17,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:17,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:17,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2019-11-25 08:54:17,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:17,842 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:17,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:17,954 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:17,954 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:17,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:17,968 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:17,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:17,991 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:20,627 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:20,629 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:20,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:20,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:20,630 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:20,630 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:20,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:20,630 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:20,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:20,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2019-11-25 08:54:20,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:20,630 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:20,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:20,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:20,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:20,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:20,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:20,755 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:20,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:54:20,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:20,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:20,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:20,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:20,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:20,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:20,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:20,776 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:20,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:54:20,782 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd4fecc5-b607-41e3-accc-20f5f0ecb13f/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 [2019-11-25 08:54:20,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:20,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:54:20,787 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:20,787 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n1~0, ULTIMATE.start_main_~j1~0, ULTIMATE.start_main_~n0~0) = 1*ULTIMATE.start_main_~n1~0 - 1*ULTIMATE.start_main_~j1~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2019-11-25 08:54:20,788 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:54:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:20,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:20,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:20,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:20,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:20,835 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:54:20,835 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-25 08:54:20,843 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 4 states. [2019-11-25 08:54:20,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:54:20,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:54:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-25 08:54:20,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-25 08:54:20,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:20,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-25 08:54:20,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:20,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-25 08:54:20,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:20,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-11-25 08:54:20,846 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:20,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-25 08:54:20,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:54:20,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:54:20,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:54:20,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:20,847 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:20,847 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:20,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:20,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:20,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:20,850 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 7 states. [2019-11-25 08:54:20,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:20,852 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:54:20,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:54:20,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:54:20,852 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:20,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:20,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:54:20,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:54:20,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:54:20,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:20,853 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:20,853 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:20,853 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:20,853 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:54:20,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:20,854 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:20,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:54:20,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:54:20 BoogieIcfgContainer [2019-11-25 08:54:20,858 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:54:20,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:20,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:20,859 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:20,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:16" (3/4) ... [2019-11-25 08:54:20,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:54:20,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:20,863 INFO L168 Benchmark]: Toolchain (without parser) took 5024.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 919.9 MB in the end (delta: 30.2 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:20,864 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:20,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:20,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:20,865 INFO L168 Benchmark]: Boogie Preprocessor took 17.74 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:20,866 INFO L168 Benchmark]: RCFGBuilder took 215.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:20,867 INFO L168 Benchmark]: BuchiAutomizer took 4456.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.9 MB in the end (delta: 194.7 MB). Peak memory consumption was 194.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:20,867 INFO L168 Benchmark]: Witness Printer took 2.98 ms. Allocated memory is still 1.2 GB. Free memory is still 919.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:20,870 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.09 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 17.74 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.39 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4456.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 919.9 MB in the end (delta: 194.7 MB). Peak memory consumption was 194.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 ms. Allocated memory is still 1.2 GB. Free memory is still 919.9 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 -1 * i0 + n0 and consists of 4 locations. One deterministic module has affine ranking function -1 * i1 + n1 and consists of 3 locations. One deterministic module has affine ranking function n1 + -1 * j1 + n0 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 39 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq164 hnf92 smp84 dnf100 smp100 tf111 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...