./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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 ecbf88ff5eccf5176dc1eb8ce718b872e4a38037 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:48:09,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:48:09,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:48:09,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:48:09,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:48:09,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:48:09,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:48:09,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:48:09,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:48:09,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:48:09,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:48:09,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:48:09,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:48:09,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:48:09,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:48:09,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:48:09,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:48:09,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:48:09,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:48:09,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:48:09,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:48:09,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:48:09,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:48:09,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:48:09,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:48:09,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:48:09,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:48:09,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:48:09,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:48:09,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:48:09,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:48:09,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:48:09,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:48:09,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:48:09,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:48:09,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:48:09,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:48:09,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:48:09,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:48:09,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:48:09,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:48:09,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:48:09,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:48:09,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:48:09,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:48:09,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:48:09,916 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:48:09,916 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:48:09,916 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:48:09,917 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:48:09,917 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:48:09,917 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:48:09,917 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:48:09,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:48:09,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:48:09,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:48:09,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:48:09,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:48:09,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:48:09,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:48:09,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:48:09,919 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:48:09,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:48:09,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:48:09,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:48:09,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:48:09,920 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:48:09,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:48:09,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:48:09,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:48:09,921 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:48:09,922 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:48:09,922 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbf88ff5eccf5176dc1eb8ce718b872e4a38037 [2020-11-30 00:48:10,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:48:10,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:48:10,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:48:10,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:48:10,236 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:48:10,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2020-11-30 00:48:10,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/data/690887995/5c97eca9f9b44e758733e0dbf8cd9da7/FLAG571209489 [2020-11-30 00:48:10,804 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:48:10,805 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2020-11-30 00:48:10,812 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/data/690887995/5c97eca9f9b44e758733e0dbf8cd9da7/FLAG571209489 [2020-11-30 00:48:11,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/data/690887995/5c97eca9f9b44e758733e0dbf8cd9da7 [2020-11-30 00:48:11,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:48:11,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:48:11,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:48:11,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:48:11,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:48:11,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36028137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11, skipping insertion in model container [2020-11-30 00:48:11,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:48:11,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:48:11,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:48:11,372 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:48:11,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:48:11,419 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:48:11,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11 WrapperNode [2020-11-30 00:48:11,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:48:11,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:48:11,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:48:11,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:48:11,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:48:11,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:48:11,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:48:11,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:48:11,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... [2020-11-30 00:48:11,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:48:11,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:48:11,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:48:11,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:48:11,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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 [2020-11-30 00:48:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:48:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:48:11,898 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:48:11,898 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:48:11,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:11 BoogieIcfgContainer [2020-11-30 00:48:11,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:48:11,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:48:11,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:48:11,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:48:11,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:11,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:48:11" (1/3) ... [2020-11-30 00:48:11,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@213729ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:48:11, skipping insertion in model container [2020-11-30 00:48:11,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:11,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:48:11" (2/3) ... [2020-11-30 00:48:11,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@213729ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:48:11, skipping insertion in model container [2020-11-30 00:48:11,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:48:11,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:11" (3/3) ... [2020-11-30 00:48:11,912 INFO L373 chiAutomizerObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-2.c [2020-11-30 00:48:11,966 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:48:11,967 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:48:11,967 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:48:11,967 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:48:11,967 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:48:11,967 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:48:11,967 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:48:11,968 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:48:11,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 00:48:12,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:12,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:12,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:12,010 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:12,010 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:48:12,011 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:48:12,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 00:48:12,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:12,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:12,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:12,015 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:12,015 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:48:12,023 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L20true assume !!(-268435455 <= main_~y~0); 10#L21true assume !!(-268435455 <= main_~z~0); 12#L22true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := 1; 8#L22-2true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 3#L27-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 9#L32-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 19#L37-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 6#L42-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 18#L47-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 5#L52-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 16#L57-1true assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 15#L67-1true [2020-11-30 00:48:12,023 INFO L796 eck$LassoCheckResult]: Loop: 15#L67-1true assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 15#L67-1true [2020-11-30 00:48:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash 21841375, now seen corresponding path program 1 times [2020-11-30 00:48:12,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076603341] [2020-11-30 00:48:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:12,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:12,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076603341] [2020-11-30 00:48:12,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:48:12,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:48:12,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306738886] [2020-11-30 00:48:12,199 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:48:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,201 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2020-11-30 00:48:12,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737993238] [2020-11-30 00:48:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:48:12,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:48:12,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:48:12,322 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-30 00:48:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:48:12,474 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2020-11-30 00:48:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:48:12,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2020-11-30 00:48:12,481 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-30 00:48:12,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 22 states and 31 transitions. [2020-11-30 00:48:12,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-30 00:48:12,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 00:48:12,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2020-11-30 00:48:12,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:12,491 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2020-11-30 00:48:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2020-11-30 00:48:12,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-30 00:48:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:48:12,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2020-11-30 00:48:12,517 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-30 00:48:12,517 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-30 00:48:12,517 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:48:12,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2020-11-30 00:48:12,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:12,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:12,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:12,521 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:12,522 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:48:12,522 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 63#L20 assume !!(-268435455 <= main_~y~0); 64#L21 assume !!(-268435455 <= main_~z~0); 66#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 68#L22-2 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 56#L27-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 57#L32-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 65#L37-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 60#L42-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 61#L47-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 58#L52-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 59#L57-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 69#L67-1 [2020-11-30 00:48:12,522 INFO L796 eck$LassoCheckResult]: Loop: 69#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 69#L67-1 [2020-11-30 00:48:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,523 INFO L82 PathProgramCache]: Analyzing trace with hash -322927901, now seen corresponding path program 1 times [2020-11-30 00:48:12,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771720596] [2020-11-30 00:48:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:12,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771720596] [2020-11-30 00:48:12,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:48:12,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:48:12,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258363212] [2020-11-30 00:48:12,552 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:48:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,553 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 2 times [2020-11-30 00:48:12,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204625534] [2020-11-30 00:48:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:48:12,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:48:12,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:48:12,602 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-30 00:48:12,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:48:12,700 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-30 00:48:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:48:12,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 23 transitions. [2020-11-30 00:48:12,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-30 00:48:12,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 00:48:12,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-30 00:48:12,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 00:48:12,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2020-11-30 00:48:12,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:12,705 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 00:48:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2020-11-30 00:48:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-30 00:48:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:48:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 00:48:12,707 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:48:12,708 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:48:12,708 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:48:12,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2020-11-30 00:48:12,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:12,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:12,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:12,717 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:12,718 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:48:12,718 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 111#L20 assume !!(-268435455 <= main_~y~0); 112#L21 assume !!(-268435455 <= main_~z~0); 115#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 113#L22-2 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 105#L27-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 106#L32-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 114#L37-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 109#L42-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 110#L47-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 123#L52-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 122#L57-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 118#L67-1 [2020-11-30 00:48:12,718 INFO L796 eck$LassoCheckResult]: Loop: 118#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 118#L67-1 [2020-11-30 00:48:12,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,720 INFO L82 PathProgramCache]: Analyzing trace with hash 701899747, now seen corresponding path program 1 times [2020-11-30 00:48:12,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59202258] [2020-11-30 00:48:12,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,763 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,765 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 3 times [2020-11-30 00:48:12,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994364506] [2020-11-30 00:48:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,782 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:12,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash 284055750, now seen corresponding path program 1 times [2020-11-30 00:48:12,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:12,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780009322] [2020-11-30 00:48:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:12,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:12,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:13,036 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-11-30 00:48:13,081 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:48:13,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:48:13,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:48:13,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:48:13,082 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:48:13,082 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:48:13,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:48:13,084 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2020-11-30 00:48:13,084 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:48:13,084 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:48:13,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,261 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:48:13,262 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:13,273 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 [2020-11-30 00:48:13,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:13,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:13,332 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 [2020-11-30 00:48:13,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:13,337 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:13,379 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:13,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:13,427 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:13,430 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:13,470 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:48:13,524 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,580 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:48:13,583 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:48:13,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:48:13,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:48:13,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:48:13,584 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:48:13,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:48:13,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:48:13,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2020-11-30 00:48:13,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:48:13,585 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:48:13,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:13,744 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:48:13,749 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,766 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 [2020-11-30 00:48:13,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:13,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:13,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:13,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:13,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:48:13,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,853 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 [2020-11-30 00:48:13,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:13,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:13,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:13,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:13,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:13,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:13,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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) [2020-11-30 00:48:13,907 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 [2020-11-30 00:48:13,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:13,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:13,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:13,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:13,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:13,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:13,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:13,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/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 [2020-11-30 00:48:13,952 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 [2020-11-30 00:48:13,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:13,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:13,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:13,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:13,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:48:13,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:48:13,980 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:48:14,037 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-30 00:48:14,038 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:14,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:48:14,049 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:48:14,049 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:48:14,050 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~z~0 + 100 Supporting invariants [-1*ULTIMATE.start_main_~x~0 - 2 >= 0] [2020-11-30 00:48:14,083 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-30 00:48:14,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:14,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:48:14,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:48:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:14,433 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:48:14,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:48:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:14,438 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 1 loop predicates [2020-11-30 00:48:14,439 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 22 transitions. cyclomatic complexity: 2 Second operand 10 states. [2020-11-30 00:48:14,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 22 transitions. cyclomatic complexity: 2. Second operand 10 states. Result 23 states and 24 transitions. Complement of second has 10 states. [2020-11-30 00:48:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-30 00:48:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 00:48:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 23 transitions. [2020-11-30 00:48:14,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2020-11-30 00:48:14,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:14,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2020-11-30 00:48:14,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:14,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:48:14,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:14,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2020-11-30 00:48:14,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:14,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 13 states and 13 transitions. [2020-11-30 00:48:14,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-30 00:48:14,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-30 00:48:14,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 13 transitions. [2020-11-30 00:48:14,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:14,721 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 00:48:14,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 13 transitions. [2020-11-30 00:48:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 00:48:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:48:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-30 00:48:14,723 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 00:48:14,723 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 00:48:14,724 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:48:14,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 13 transitions. [2020-11-30 00:48:14,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 00:48:14,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:48:14,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:48:14,725 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:48:14,725 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:48:14,725 INFO L794 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 242#L20 assume !!(-268435455 <= main_~y~0); 243#L21 assume !!(-268435455 <= main_~z~0); 246#L22 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := 1; 244#L22-2 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 236#L27-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 237#L32-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 245#L37-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 240#L42-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 241#L47-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 238#L52-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 239#L57-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 248#L67-1 [2020-11-30 00:48:14,725 INFO L796 eck$LassoCheckResult]: Loop: 248#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 248#L67-1 [2020-11-30 00:48:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:14,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1002986271, now seen corresponding path program 1 times [2020-11-30 00:48:14,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:14,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11040625] [2020-11-30 00:48:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:14,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:14,751 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 4 times [2020-11-30 00:48:14,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:14,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075189325] [2020-11-30 00:48:14,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1027803256, now seen corresponding path program 1 times [2020-11-30 00:48:14,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:48:14,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599297722] [2020-11-30 00:48:14,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:48:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:48:14,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:48:14,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:48:14,989 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-11-30 00:48:15,006 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:48:15,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:48:15,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:48:15,006 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:48:15,006 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:48:15,006 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:48:15,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:48:15,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2020-11-30 00:48:15,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:48:15,007 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:48:15,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,166 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:48:15,166 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:48:15,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,225 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,229 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,276 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,280 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,280 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:48:15,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,328 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,379 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,428 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,431 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:48:15,432 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:48:15,475 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:48:15,527 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,575 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:48:15,578 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:48:15,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:48:15,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:48:15,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:48:15,579 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:48:15,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:48:15,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:48:15,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2020-11-30 00:48:15,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:48:15,579 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:48:15,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:48:15,728 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:48:15,728 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,732 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 [2020-11-30 00:48:15,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:48:15,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,746 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,789 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 [2020-11-30 00:48:15,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:15,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:15,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,841 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 [2020-11-30 00:48:15,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:15,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:15,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:48:15,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,897 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 [2020-11-30 00:48:15,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:15,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:15,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,933 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 [2020-11-30 00:48:15,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:48:15,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:48:15,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:48:15,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:48:15,981 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 [2020-11-30 00:48:15,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:15,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:15,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:15,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:15,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:48:15,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:15,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:16,030 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 [2020-11-30 00:48:16,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:48:16,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:48:16,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:48:16,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:48:16,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:48:16,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:48:16,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:48:16,068 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 00:48:16,069 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1e4faf-a8bc-4965-b048-f05555927cfa/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:48:16,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:48:16,074 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:48:16,075 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:48:16,075 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 + 100 Supporting invariants [1*ULTIMATE.start_main_~x~0 - 2 >= 0] [2020-11-30 00:48:16,101 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-30 00:48:16,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:48:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:16,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:48:16,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:48:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:48:16,359 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:48:16,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:48:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:48:16,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 1 loop predicates [2020-11-30 00:48:16,360 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1 Second operand 9 states. [2020-11-30 00:48:16,535 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1. Second operand 9 states. Result 14 states and 14 transitions. Complement of second has 9 states. [2020-11-30 00:48:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 8 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-30 00:48:16,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 00:48:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-11-30 00:48:16,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 1 letters. [2020-11-30 00:48:16,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:16,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 13 letters. Loop has 1 letters. [2020-11-30 00:48:16,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:16,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:48:16,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:48:16,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2020-11-30 00:48:16,538 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:48:16,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-11-30 00:48:16,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:48:16,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:48:16,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:48:16,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:48:16,538 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:48:16,539 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:48:16,539 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:48:16,539 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:48:16,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:48:16,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:48:16,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:48:16,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:48:16 BoogieIcfgContainer [2020-11-30 00:48:16,545 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:48:16,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:48:16,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:48:16,545 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:48:16,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:48:11" (3/4) ... [2020-11-30 00:48:16,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:48:16,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:48:16,549 INFO L168 Benchmark]: Toolchain (without parser) took 5367.77 ms. Allocated memory was 123.7 MB in the beginning and 151.0 MB in the end (delta: 27.3 MB). Free memory was 90.0 MB in the beginning and 81.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,550 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory is still 36.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:48:16,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.45 ms. Allocated memory is still 123.7 MB. Free memory was 89.8 MB in the beginning and 100.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.51 ms. Allocated memory is still 123.7 MB. Free memory was 100.2 MB in the beginning and 98.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:48:16,551 INFO L168 Benchmark]: Boogie Preprocessor took 36.40 ms. Allocated memory is still 123.7 MB. Free memory was 98.8 MB in the beginning and 97.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,552 INFO L168 Benchmark]: RCFGBuilder took 388.76 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 86.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,553 INFO L168 Benchmark]: BuchiAutomizer took 4642.91 ms. Allocated memory was 123.7 MB in the beginning and 151.0 MB in the end (delta: 27.3 MB). Free memory was 86.3 MB in the beginning and 82.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,553 INFO L168 Benchmark]: Witness Printer took 3.41 ms. Allocated memory is still 151.0 MB. Free memory was 82.7 MB in the beginning and 81.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:48:16,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory is still 36.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.45 ms. Allocated memory is still 123.7 MB. Free memory was 89.8 MB in the beginning and 100.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.51 ms. Allocated memory is still 123.7 MB. Free memory was 100.2 MB in the beginning and 98.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.40 ms. Allocated memory is still 123.7 MB. Free memory was 98.8 MB in the beginning and 97.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 388.76 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 86.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4642.91 ms. Allocated memory was 123.7 MB in the beginning and 151.0 MB in the end (delta: 27.3 MB). Free memory was 86.3 MB in the beginning and 82.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.41 ms. Allocated memory is still 151.0 MB. Free memory was 82.7 MB in the beginning and 81.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + 100 and consists of 10 locations. One deterministic module has affine ranking function -1 * y + 100 and consists of 9 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 24 SDslu, 18 SDs, 0 SdLazy, 101 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital34 mio100 ax135 hnf95 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...