./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/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 fb13e67548d34af589d64a91d36af5946c1dd198 ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:14:53,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:14:53,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:14:53,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:14:53,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:14:53,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:14:53,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:14:53,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:14:53,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:14:53,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:14:53,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:14:53,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:14:53,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:14:53,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:14:53,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:14:53,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:14:53,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:14:53,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:14:53,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:14:53,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:14:53,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:14:53,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:14:53,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:14:53,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:14:53,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:14:53,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:14:53,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:14:53,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:14:53,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:14:53,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:14:53,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:14:53,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:14:53,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:14:53,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:14:53,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:14:53,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:14:53,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:14:53,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:14:53,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:14:53,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:14:53,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:14:53,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:14:53,148 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:14:53,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:14:53,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:14:53,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:14:53,150 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:14:53,150 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:14:53,150 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:14:53,150 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:14:53,150 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:14:53,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:14:53,151 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:14:53,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:14:53,151 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:14:53,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:14:53,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:14:53,152 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:14:53,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:14:53,153 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:14:53,153 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:14:53,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:14:53,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:14:53,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:14:53,154 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:14:53,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:14:53,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:14:53,154 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:14:53,155 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:14:53,155 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_d6506692-98fa-40b6-8cfe-c9120d8b18be/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 -> fb13e67548d34af589d64a91d36af5946c1dd198 [2019-11-20 10:14:53,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:14:53,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:14:53,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:14:53,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:14:53,319 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:14:53,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2019-11-20 10:14:53,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/data/de45b710b/9372eb432dbf42bf820875e77c4d3819/FLAG7024f0291 [2019-11-20 10:14:53,770 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:14:53,771 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2019-11-20 10:14:53,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/data/de45b710b/9372eb432dbf42bf820875e77c4d3819/FLAG7024f0291 [2019-11-20 10:14:54,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/data/de45b710b/9372eb432dbf42bf820875e77c4d3819 [2019-11-20 10:14:54,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:14:54,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:14:54,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:14:54,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:14:54,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:14:54,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dcddee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54, skipping insertion in model container [2019-11-20 10:14:54,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,171 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:14:54,185 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:14:54,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:14:54,372 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:14:54,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:14:54,491 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:14:54,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54 WrapperNode [2019-11-20 10:14:54,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:14:54,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:14:54,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:14:54,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:14:54,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:14:54,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:14:54,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:14:54,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:14:54,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... [2019-11-20 10:14:54,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:14:54,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:14:54,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:14:54,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:14:54,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:14:54,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:14:54,754 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:14:54,754 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 10:14:54,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:54 BoogieIcfgContainer [2019-11-20 10:14:54,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:14:54,756 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:14:54,756 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:14:54,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:14:54,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:14:54,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:14:54" (1/3) ... [2019-11-20 10:14:54,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@be3195e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:14:54, skipping insertion in model container [2019-11-20 10:14:54,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:14:54,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:54" (2/3) ... [2019-11-20 10:14:54,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@be3195e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:14:54, skipping insertion in model container [2019-11-20 10:14:54,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:14:54,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:54" (3/3) ... [2019-11-20 10:14:54,764 INFO L371 chiAutomizerObserver]: Analyzing ICFG cggmp2005_variant.i [2019-11-20 10:14:54,806 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:14:54,806 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:14:54,806 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:14:54,806 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:14:54,806 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:14:54,806 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:14:54,806 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:14:54,806 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:14:54,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 10:14:54,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 10:14:54,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:14:54,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:14:54,845 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:14:54,845 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 10:14:54,845 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:14:54,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 10:14:54,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 10:14:54,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:14:54,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:14:54,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:14:54,847 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 10:14:54,854 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_~lo~0, main_~mid~0, main_~hi~0;havoc main_~lo~0;havoc main_~mid~0;havoc main_~hi~0;main_~lo~0 := 0;main_~mid~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L14true assume !!(main_~mid~0 > 0 && main_~mid~0 <= 1000000);main_~hi~0 := 2 * main_~mid~0; 11#L16-2true [2019-11-20 10:14:54,854 INFO L796 eck$LassoCheckResult]: Loop: 11#L16-2true assume !!(main_~mid~0 > 0);main_~lo~0 := 1 + main_~lo~0;main_~hi~0 := main_~hi~0 - 1;main_~mid~0 := main_~mid~0 - 1; 11#L16-2true [2019-11-20 10:14:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:54,859 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-20 10:14:54,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:54,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657597411] [2019-11-20 10:14:54,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,959 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:14:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2019-11-20 10:14:54,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:54,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616718767] [2019-11-20 10:14:54,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:14:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:54,971 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2019-11-20 10:14:54,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:54,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181973516] [2019-11-20 10:14:54,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:54,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:14:55,047 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:14:55,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:14:55,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:14:55,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:14:55,049 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:14:55,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:14:55,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:14:55,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2019-11-20 10:14:55,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:14:55,052 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:14:55,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,204 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:14:55,204 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:14:55,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:14:55,215 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/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) [2019-11-20 10:14:55,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:14:55,235 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 [2019-11-20 10:14:55,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:14:55,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~lo~0=0} Honda state: {ULTIMATE.start_main_~lo~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~lo~0=1}, {ULTIMATE.start_main_~lo~0=0}, {ULTIMATE.start_main_~lo~0=0}] Lambdas: [1, 7, 4] Nus: [1, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:14:55,265 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:14:55,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:14:55,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:14:55,311 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~hi~0=0} Honda state: {ULTIMATE.start_main_~hi~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~hi~0=-2}, {ULTIMATE.start_main_~hi~0=2}, {ULTIMATE.start_main_~hi~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:14:55,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:14:55,339 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:14:55,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:14:55,367 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:14:55,369 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:14:55,370 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:14:55,370 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:14:55,370 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:14:55,370 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:14:55,370 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:14:55,371 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:14:55,371 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2019-11-20 10:14:55,371 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:14:55,371 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:14:55,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:14:55,454 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:14:55,458 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:14:55,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:14:55,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:14:55,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:14:55,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:14:55,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:14:55,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:14:55,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:14:55,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:14:55,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:14:55,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:14:55,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:14:55,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:14:55,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:14:55,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:14:55,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:14:55,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:14:55,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:14:55,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:14:55,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:14:55,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:14:55,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:14:55,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:14:55,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:14:55,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:14:55,541 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:14:55,542 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6506692-98fa-40b6-8cfe-c9120d8b18be/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:14:55,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:14:55,554 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:14:55,555 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:14:55,555 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~mid~0) = 1*ULTIMATE.start_main_~mid~0 Supporting invariants [] [2019-11-20 10:14:55,559 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:14:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:55,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:14:55,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:14:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:55,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:14:55,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:14:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:55,631 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 10:14:55,633 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 2 states. [2019-11-20 10:14:55,688 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 2 states. Result 28 states and 33 transitions. Complement of second has 5 states. [2019-11-20 10:14:55,691 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 [2019-11-20 10:14:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 10:14:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-11-20 10:14:55,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-20 10:14:55,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:14:55,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-20 10:14:55,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:14:55,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-20 10:14:55,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:14:55,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2019-11-20 10:14:55,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:14:55,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2019-11-20 10:14:55,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:14:55,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:14:55,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:14:55,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:14:55,703 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:14:55,703 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:14:55,703 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:14:55,703 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:14:55,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:14:55,703 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:14:55,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:14:55,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:14:55 BoogieIcfgContainer [2019-11-20 10:14:55,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:14:55,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:14:55,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:14:55,708 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:14:55,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:54" (3/4) ... [2019-11-20 10:14:55,712 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:14:55,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:14:55,714 INFO L168 Benchmark]: Toolchain (without parser) took 1557.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -83.8 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:55,715 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:55,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:55,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:55,716 INFO L168 Benchmark]: Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:55,717 INFO L168 Benchmark]: RCFGBuilder took 217.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:55,717 INFO L168 Benchmark]: BuchiAutomizer took 951.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:55,718 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:55,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 217.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 951.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function mid and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 11 SDslu, 6 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...