./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_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:29,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:29,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:29,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:29,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:29,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:29,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:29,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:29,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:29,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:29,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:29,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:29,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:29,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:29,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:29,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:29,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:29,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:29,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:29,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:29,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:29,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:29,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:30,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:30,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:30,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:30,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:30,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:30,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:30,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:30,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:30,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:30,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:30,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:30,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:30,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:30,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:30,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:30,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:30,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:30,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:30,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:10:30,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:30,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:30,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:30,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:30,055 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:30,056 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:10:30,056 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:10:30,056 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:10:30,056 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:10:30,056 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:10:30,057 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:10:30,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:30,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:10:30,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:30,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:30,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:10:30,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:10:30,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:10:30,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:30,058 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:10:30,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:30,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:10:30,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:30,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:30,059 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:10:30,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:30,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:30,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:30,060 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:10:30,061 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:10:30,061 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_510e1036-7000-4bdf-98e5-a36282588903/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbf88ff5eccf5176dc1eb8ce718b872e4a38037 [2020-11-28 03:10:30,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:30,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:30,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:30,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:30,368 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:30,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2020-11-28 03:10:30,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/data/e8030f0cb/7aa0e105777c4cb58bbdcf8d194012a2/FLAG3a313d9be [2020-11-28 03:10:30,881 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:30,881 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2020-11-28 03:10:30,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/data/e8030f0cb/7aa0e105777c4cb58bbdcf8d194012a2/FLAG3a313d9be [2020-11-28 03:10:31,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/data/e8030f0cb/7aa0e105777c4cb58bbdcf8d194012a2 [2020-11-28 03:10:31,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:31,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:31,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:31,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:31,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:31,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747158b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:31,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:31,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:31,502 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:31,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:31,533 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:31,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31 WrapperNode [2020-11-28 03:10:31,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:31,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:31,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:31,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:31,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:31,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:31,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:31,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:31,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:31,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:31,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:31,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:31,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:31,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:31,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:31,888 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:10:31,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31 BoogieIcfgContainer [2020-11-28 03:10:31,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:31,891 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:10:31,891 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:10:31,896 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:10:31,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:10:31,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:10:31" (1/3) ... [2020-11-28 03:10:31,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1327857c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:10:31,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (2/3) ... [2020-11-28 03:10:31,900 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1327857c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:10:31,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31" (3/3) ... [2020-11-28 03:10:31,902 INFO L373 chiAutomizerObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-2.c [2020-11-28 03:10:31,949 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:10:31,949 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:10:31,949 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:10:31,949 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:31,949 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:31,949 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:10:31,950 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:31,950 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:10:31,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-28 03:10:31,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:32,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:10:32,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:10:32,010 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:32,011 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:10:32,011 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:10:32,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-28 03:10:32,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:32,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:10:32,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:10:32,014 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:32,014 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:10:32,022 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 [2020-11-28 03:10:32,022 INFO L796 eck$LassoCheckResult]: Loop: 15#L67-1true assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 15#L67-1true [2020-11-28 03:10:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,028 INFO L82 PathProgramCache]: Analyzing trace with hash 21841375, now seen corresponding path program 1 times [2020-11-28 03:10:32,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695800259] [2020-11-28 03:10:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695800259] [2020-11-28 03:10:32,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:32,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297614904] [2020-11-28 03:10:32,192 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:10:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,193 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2020-11-28 03:10:32,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089786251] [2020-11-28 03:10:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:32,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:32,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:32,310 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-28 03:10:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,421 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2020-11-28 03:10:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:32,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2020-11-28 03:10:32,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-28 03:10:32,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 22 states and 31 transitions. [2020-11-28 03:10:32,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-28 03:10:32,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-28 03:10:32,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2020-11-28 03:10:32,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:10:32,434 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2020-11-28 03:10:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2020-11-28 03:10:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-28 03:10:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:10:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2020-11-28 03:10:32,464 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-28 03:10:32,465 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-28 03:10:32,465 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:10:32,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2020-11-28 03:10:32,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:32,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:10:32,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:10:32,469 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:32,469 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:10:32,470 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 63#L20 assume !!(-268435455 <= main_~y~0); 64#L21 assume !!(-268435455 <= main_~z~0); 66#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 68#L22-2 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 56#L27-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 57#L32-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 65#L37-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 60#L42-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 61#L47-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 58#L52-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 59#L57-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 69#L67-1 [2020-11-28 03:10:32,470 INFO L796 eck$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 [2020-11-28 03:10:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,471 INFO L82 PathProgramCache]: Analyzing trace with hash -322927901, now seen corresponding path program 1 times [2020-11-28 03:10:32,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104796251] [2020-11-28 03:10:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104796251] [2020-11-28 03:10:32,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:32,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900824857] [2020-11-28 03:10:32,518 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:10:32,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,519 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 2 times [2020-11-28 03:10:32,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226008742] [2020-11-28 03:10:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,539 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:32,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:32,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:32,576 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 03:10:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,660 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-28 03:10:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:32,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 23 transitions. [2020-11-28 03:10:32,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-28 03:10:32,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 03:10:32,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-28 03:10:32,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-28 03:10:32,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2020-11-28 03:10:32,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:10:32,664 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 03:10:32,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2020-11-28 03:10:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-11-28 03:10:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:10:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 03:10:32,667 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:10:32,667 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:10:32,667 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:10:32,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2020-11-28 03:10:32,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:32,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:10:32,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:10:32,673 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:32,674 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:10:32,674 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 [2020-11-28 03:10:32,674 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 [2020-11-28 03:10:32,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,676 INFO L82 PathProgramCache]: Analyzing trace with hash 701899747, now seen corresponding path program 1 times [2020-11-28 03:10:32,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719610423] [2020-11-28 03:10:32,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:32,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,744 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 3 times [2020-11-28 03:10:32,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277550316] [2020-11-28 03:10:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,761 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:32,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,763 INFO L82 PathProgramCache]: Analyzing trace with hash 284055750, now seen corresponding path program 1 times [2020-11-28 03:10:32,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153286570] [2020-11-28 03:10:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:32,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:32,825 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:32,999 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-11-28 03:10:33,049 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:10:33,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:10:33,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:10:33,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:10:33,051 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:10:33,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:10:33,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:10:33,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2020-11-28 03:10:33,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:10:33,053 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:10:33,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,227 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:10:33,228 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:33,235 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 [2020-11-28 03:10:33,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:33,243 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_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:33,287 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 [2020-11-28 03:10:33,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:33,298 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_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:33,341 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 [2020-11-28 03:10:33,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:33,345 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_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:33,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:33,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:33,383 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_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:33,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:33,406 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:10:33,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:33,509 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:10:33,511 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:10:33,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:10:33,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:10:33,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:10:33,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:10:33,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:10:33,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:10:33,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2020-11-28 03:10:33,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:10:33,512 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:10:33,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:33,676 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:10:33,681 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,690 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 [2020-11-28 03:10:33,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:33,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:33,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:33,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:33,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:10:33,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:10:33,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,746 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 [2020-11-28 03:10:33,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:33,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:33,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:33,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:33,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:33,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:33,749 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 [2020-11-28 03:10:33,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,794 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 [2020-11-28 03:10:33,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:33,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:33,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:33,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:33,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:33,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:33,797 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 [2020-11-28 03:10:33,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:33,842 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 [2020-11-28 03:10:33,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:33,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:33,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:33,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:33,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:10:33,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:33,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:10:33,964 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-28 03:10:33,965 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_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:33,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:10:33,973 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:10:33,973 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:10:33,974 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] [2020-11-28 03:10:34,003 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:10:34,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:34,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:10:34,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:34,312 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:10:34,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:34,316 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 [2020-11-28 03:10:34,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 22 transitions. cyclomatic complexity: 2 Second operand 10 states. [2020-11-28 03:10:34,563 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. [2020-11-28 03:10:34,563 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 [2020-11-28 03:10:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:10:34,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 23 transitions. [2020-11-28 03:10:34,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2020-11-28 03:10:34,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:34,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2020-11-28 03:10:34,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:34,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 03:10:34,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:34,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2020-11-28 03:10:34,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:34,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 13 states and 13 transitions. [2020-11-28 03:10:34,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 03:10:34,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-28 03:10:34,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 13 transitions. [2020-11-28 03:10:34,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:10:34,570 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:10:34,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 13 transitions. [2020-11-28 03:10:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:10:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:10:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 03:10:34,571 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:10:34,571 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:10:34,572 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:10:34,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 13 transitions. [2020-11-28 03:10:34,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:10:34,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:10:34,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:10:34,573 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:34,573 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:10:34,573 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 [2020-11-28 03:10:34,573 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 [2020-11-28 03:10:34,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:34,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1002986271, now seen corresponding path program 1 times [2020-11-28 03:10:34,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:34,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646916100] [2020-11-28 03:10:34,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,603 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 4 times [2020-11-28 03:10:34,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:34,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180993608] [2020-11-28 03:10:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,618 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:34,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1027803256, now seen corresponding path program 1 times [2020-11-28 03:10:34,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:34,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763946261] [2020-11-28 03:10:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:34,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:34,647 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:34,794 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-11-28 03:10:34,814 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:10:34,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:10:34,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:10:34,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:10:34,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:10:34,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:34,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:10:34,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:10:34,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2020-11-28 03:10:34,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:10:34,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:10:34,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:34,952 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:10:34,952 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:34,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:34,959 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:34,963 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:34,963 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_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:35,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,005 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 [2020-11-28 03:10:35,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:35,014 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_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:35,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,054 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 [2020-11-28 03:10:35,057 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:35,057 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_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:35,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:35,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:35,090 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_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:35,130 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:35,131 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_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:35,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:10:35,163 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_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:10:35,191 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:10:35,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:10:35,274 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:10:35,276 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:10:35,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:10:35,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:10:35,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:10:35,276 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:10:35,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:10:35,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:10:35,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2020-11-28 03:10:35,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:10:35,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:10:35,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:10:35,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:10:35,420 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:35,438 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 [2020-11-28 03:10:35,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:10:35,444 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 [2020-11-28 03:10:35,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:35,486 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 [2020-11-28 03:10:35,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:35,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:35,489 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 [2020-11-28 03:10:35,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:35,518 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 [2020-11-28 03:10:35,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:35,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:35,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:10:35,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,547 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 [2020-11-28 03:10:35,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:35,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:35,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:10:35,550 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:35,572 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 [2020-11-28 03:10:35,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:10:35,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:10:35,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:10:35,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,598 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 [2020-11-28 03:10:35,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:10:35,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:10:35,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_510e1036-7000-4bdf-98e5-a36282588903/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) [2020-11-28 03:10:35,651 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 [2020-11-28 03:10:35,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:10:35,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:10:35,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:10:35,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:10:35,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:10:35,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:10:35,669 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:10:35,680 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-28 03:10:35,680 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_510e1036-7000-4bdf-98e5-a36282588903/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 [2020-11-28 03:10:35,687 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:10:35,689 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:10:35,689 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:10:35,689 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] [2020-11-28 03:10:35,712 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:10:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:35,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:10:35,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:35,899 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:10:35,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:35,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:35,900 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 [2020-11-28 03:10:35,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1 Second operand 9 states. [2020-11-28 03:10:36,118 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. [2020-11-28 03:10:36,118 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 [2020-11-28 03:10:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:10:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-11-28 03:10:36,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 1 letters. [2020-11-28 03:10:36,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:36,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 13 letters. Loop has 1 letters. [2020-11-28 03:10:36,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:36,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 03:10:36,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:10:36,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2020-11-28 03:10:36,120 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:10:36,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:10:36,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:10:36,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:10:36,121 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:10:36,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:10:36,121 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:10:36,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:10:36,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:10:36 BoogieIcfgContainer [2020-11-28 03:10:36,127 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:10:36,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:36,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:36,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:36,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31" (3/4) ... [2020-11-28 03:10:36,131 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:10:36,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:36,133 INFO L168 Benchmark]: Toolchain (without parser) took 4852.89 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 67.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:36,133 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:36,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.08 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 68.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:36,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:36,135 INFO L168 Benchmark]: Boogie Preprocessor took 19.33 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:36,135 INFO L168 Benchmark]: RCFGBuilder took 302.76 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 54.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:36,136 INFO L168 Benchmark]: BuchiAutomizer took 4236.22 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 67.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:36,137 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 109.1 MB. Free memory was 67.2 MB in the beginning and 67.0 MB in the end (delta: 155.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:36,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.08 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 68.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.51 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.33 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 302.76 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 54.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4236.22 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 67.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.89 ms. Allocated memory is still 109.1 MB. Free memory was 67.2 MB in the beginning and 67.0 MB in the end (delta: 155.1 kB). There was no memory consumed. 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 4.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. 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, 0.2s 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: 19ms 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...