./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.02-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.02-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 422e0eaf2d7a917ba2bde807c111198f2d7aea19 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:52:23,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:52:23,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:52:23,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:52:23,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:52:23,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:52:23,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:52:23,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:52:23,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:52:23,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:52:23,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:52:23,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:52:23,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:52:23,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:52:23,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:52:23,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:52:23,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:52:23,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:52:23,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:52:23,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:52:23,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:52:23,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:52:23,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:52:23,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:52:23,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:52:23,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:52:23,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:52:23,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:52:23,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:52:23,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:52:23,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:52:23,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:52:23,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:52:23,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:52:23,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:52:23,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:52:23,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:52:23,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:52:23,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:52:23,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:52:23,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:52:23,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 22:52:23,862 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:52:23,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:52:23,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:52:23,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:52:23,864 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:52:23,864 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:52:23,864 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:52:23,864 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:52:23,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:52:23,865 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:52:23,865 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:52:23,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:52:23,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:52:23,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:52:23,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:52:23,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:52:23,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:52:23,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:52:23,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:52:23,867 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:52:23,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:52:23,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:52:23,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:52:23,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:52:23,868 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:52:23,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:52:23,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:52:23,869 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:52:23,869 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:52:23,870 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_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422e0eaf2d7a917ba2bde807c111198f2d7aea19 [2019-11-15 22:52:23,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:52:23,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:52:23,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:52:23,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:52:23,935 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:52:23,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/b.02-alloca.i [2019-11-15 22:52:23,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/data/871a6f29c/8ee864c0fd19440e885f0d727f34af97/FLAG2860b0ac4 [2019-11-15 22:52:24,443 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:52:24,443 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/sv-benchmarks/c/termination-memory-alloca/b.02-alloca.i [2019-11-15 22:52:24,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/data/871a6f29c/8ee864c0fd19440e885f0d727f34af97/FLAG2860b0ac4 [2019-11-15 22:52:24,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/bin/uautomizer/data/871a6f29c/8ee864c0fd19440e885f0d727f34af97 [2019-11-15 22:52:24,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:52:24,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:52:24,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:52:24,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:52:24,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:52:24,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:52:24" (1/1) ... [2019-11-15 22:52:24,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca44468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:24, skipping insertion in model container [2019-11-15 22:52:24,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:52:24" (1/1) ... [2019-11-15 22:52:24,838 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:52:24,869 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:52:25,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:52:25,231 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:52:25,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:52:25,323 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:52:25,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25 WrapperNode [2019-11-15 22:52:25,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:52:25,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:52:25,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:52:25,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:52:25,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:52:25,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:52:25,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:52:25,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:52:25,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... [2019-11-15 22:52:25,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:52:25,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:52:25,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:52:25,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:52:25,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d0df35c-5b5a-49ea-ba6f-4b9cca3c27b1/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 [2019-11-15 22:52:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:52:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:52:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:52:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:52:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:52:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:52:25,754 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:52:25,754 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 22:52:25,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:52:25 BoogieIcfgContainer [2019-11-15 22:52:25,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:52:25,756 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:52:25,756 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:52:25,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:52:25,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:52:25,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:52:24" (1/3) ... [2019-11-15 22:52:25,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79cfc33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:52:25, skipping insertion in model container [2019-11-15 22:52:25,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:52:25,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:52:25" (2/3) ... [2019-11-15 22:52:25,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79cfc33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:52:25, skipping insertion in model container [2019-11-15 22:52:25,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:52:25,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:52:25" (3/3) ... [2019-11-15 22:52:25,763 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.02-alloca.i [2019-11-15 22:52:25,805 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:52:25,805 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:52:25,806 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:52:25,806 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:52:25,806 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:52:25,806 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:52:25,806 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:52:25,807 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:52:25,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-15 22:52:25,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:52:25,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:52:25,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:52:25,846 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:52:25,846 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:52:25,846 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:52:25,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-15 22:52:25,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:52:25,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:52:25,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:52:25,848 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:52:25,848 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:52:25,855 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~ret12;test_fun_#in~x, test_fun_#in~y := main_#t~nondet10, main_#t~nondet11;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem9, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 5#L555-3true [2019-11-15 22:52:25,856 INFO L793 eck$LassoCheckResult]: Loop: 5#L555-3true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 10#L555-1true assume !!(test_fun_#t~mem5 > test_fun_#t~mem6);havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem7 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem7;call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem8, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem8; 5#L555-3true [2019-11-15 22:52:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-15 22:52:25,869 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:52:25,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348395248] [2019-11-15 22:52:25,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:25,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:25,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:52:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,038 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:52:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-11-15 22:52:26,040 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:52:26,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668651944] [2019-11-15 22:52:26,040 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:26,041 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:26,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:52:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,067 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:52:26,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:26,069 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-15 22:52:26,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:52:26,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160791299] [2019-11-15 22:52:26,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:26,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:52:26,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:52:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:52:26,136 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:52:26,817 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-11-15 22:52:27,020 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-11-15 22:52:27,032 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:52:27,033 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:52:27,033 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:52:27,033 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:52:27,034 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:52:27,034 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:52:27,034 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:52:27,034 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:52:27,034 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.02-alloca.i_Iteration1_Lasso [2019-11-15 22:52:27,035 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:52:27,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:52:27,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,500 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-11-15 22:52:27,622 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-11-15 22:52:27,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:27,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:52:28,629 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-11-15 22:52:28,698 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:52:28,703 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:52:28,705 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 [2019-11-15 22:52:28,706 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,706 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:52:28,707 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,707 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,707 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,709 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:52:28,709 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:52:28,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,711 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 [2019-11-15 22:52:28,712 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,712 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:52:28,712 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,712 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,712 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,713 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:52:28,713 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:52:28,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,714 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 [2019-11-15 22:52:28,714 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,715 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:52:28,715 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,715 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,715 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,715 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:52:28,715 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:52:28,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,716 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 [2019-11-15 22:52:28,717 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,717 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:52:28,717 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,717 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,717 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,718 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:52:28,718 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:52:28,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,719 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 [2019-11-15 22:52:28,719 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,720 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,720 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,720 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,722 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:52:28,722 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:52:28,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,726 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 [2019-11-15 22:52:28,734 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,734 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:52:28,734 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,734 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,735 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,735 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:52:28,735 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:52:28,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,737 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 [2019-11-15 22:52:28,737 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,738 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,738 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,738 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,740 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:52:28,742 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:52:28,746 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:52:28,753 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 [2019-11-15 22:52:28,754 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:52:28,755 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:52:28,755 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:52:28,755 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:52:28,761 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:52:28,769 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:52:28,833 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:52:28,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:52:28,872 INFO L444 ModelExtractionUtils]: 25 out of 28 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:52:28,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:52:28,876 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 22:52:28,883 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:52:28,883 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 - 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1 Supporting invariants [] [2019-11-15 22:52:28,958 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2019-11-15 22:52:28,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-15 22:52:28,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-15 22:52:28,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:52:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:52:29,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:52:29,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:52:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:52:29,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 22:52:29,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:52:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:52:29,066 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 [2019-11-15 22:52:29,067 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 3 states. [2019-11-15 22:52:29,119 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 3 states. Result 21 states and 23 transitions. Complement of second has 7 states. [2019-11-15 22:52:29,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 22:52:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:52:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2019-11-15 22:52:29,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 22:52:29,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:52:29,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 22:52:29,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:52:29,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 22:52:29,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:52:29,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 23 transitions. [2019-11-15 22:52:29,127 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:52:29,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-11-15 22:52:29,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:52:29,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:52:29,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:52:29,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:52:29,132 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:52:29,132 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:52:29,132 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:52:29,133 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:52:29,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:52:29,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:52:29,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:52:29,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:52:29 BoogieIcfgContainer [2019-11-15 22:52:29,139 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:52:29,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:52:29,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:52:29,140 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:52:29,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:52:25" (3/4) ... [2019-11-15 22:52:29,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:52:29,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:52:29,146 INFO L168 Benchmark]: Toolchain (without parser) took 4323.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:29,146 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:52:29,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:29,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:29,148 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:52:29,149 INFO L168 Benchmark]: RCFGBuilder took 362.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:29,150 INFO L168 Benchmark]: BuchiAutomizer took 3382.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -49.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:52:29,150 INFO L168 Benchmark]: Witness Printer took 4.83 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. [2019-11-15 22:52:29,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 500.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 362.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3382.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -49.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.83 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 unknown-#memory_int-unknown[x_ref][x_ref] + -1 * unknown-#memory_int-unknown[y_ref][y_ref] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. 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: 5 SDtfs, 5 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital294 mio100 ax106 hnf100 lsp92 ukn56 mio100 lsp33 div100 bol100 ite100 ukn100 eq196 hnf87 smp100 dnf359 smp91 tf100 neg92 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...