./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67768b34e7b9299b4c0862a201d7fe793c7261b3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:35:42,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:42,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:42,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:42,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:42,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:42,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:42,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:42,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:42,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:42,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:42,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:42,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:42,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:42,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:42,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:42,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:42,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:42,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:42,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:42,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:42,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:42,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:42,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:42,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:42,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:42,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:42,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:42,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:42,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:42,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:42,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:42,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:42,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:42,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:42,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:42,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:42,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:42,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:42,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:42,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:42,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:35:42,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:42,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:42,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:42,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:42,687 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:35:42,688 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:35:42,688 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:35:42,688 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:35:42,688 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:35:42,688 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:35:42,689 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:35:42,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:42,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:42,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:35:42,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:35:42,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:42,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:42,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:35:42,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:35:42,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:35:42,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:42,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:35:42,691 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:35:42,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:42,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:35:42,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:42,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:35:42,692 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:35:42,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:42,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:35:42,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:35:42,693 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:35:42,695 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:35:42,695 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_6c26d2ff-3c45-44af-9f58-d0081cc8f712/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67768b34e7b9299b4c0862a201d7fe793c7261b3 [2020-11-30 00:35:43,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:43,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:43,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:43,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:43,137 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:43,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/../../sv-benchmarks/c/loops/sum01_bug02.i [2020-11-30 00:35:43,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/data/47ddf3d65/cb0a20dcf54e4b439f60e10d762e1a27/FLAGdf5909402 [2020-11-30 00:35:43,678 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:43,679 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/sv-benchmarks/c/loops/sum01_bug02.i [2020-11-30 00:35:43,689 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/data/47ddf3d65/cb0a20dcf54e4b439f60e10d762e1a27/FLAGdf5909402 [2020-11-30 00:35:44,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/data/47ddf3d65/cb0a20dcf54e4b439f60e10d762e1a27 [2020-11-30 00:35:44,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:44,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:44,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:44,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:44,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:44,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555d0573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44, skipping insertion in model container [2020-11-30 00:35:44,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:44,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:44,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:44,266 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:44,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:44,309 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:44,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44 WrapperNode [2020-11-30 00:35:44,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:44,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:44,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:44,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:44,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:44,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:44,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:44,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:44,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... [2020-11-30 00:35:44,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:44,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:44,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:44,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:44,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:35:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:44,835 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:44,836 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:35:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:44 BoogieIcfgContainer [2020-11-30 00:35:44,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:44,852 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:35:44,852 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:35:44,869 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:35:44,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:44,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:35:44" (1/3) ... [2020-11-30 00:35:44,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67ab7b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:44, skipping insertion in model container [2020-11-30 00:35:44,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:44,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:44" (2/3) ... [2020-11-30 00:35:44,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67ab7b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:44, skipping insertion in model container [2020-11-30 00:35:44,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:44,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:44" (3/3) ... [2020-11-30 00:35:44,873 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum01_bug02.i [2020-11-30 00:35:44,942 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:35:44,942 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:35:44,942 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:35:44,942 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:35:44,942 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:35:44,943 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:35:44,943 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:35:44,943 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:35:44,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-30 00:35:44,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:35:44,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:44,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:44,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:35:44,981 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:35:44,981 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:35:44,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-30 00:35:44,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:35:44,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:44,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:44,986 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:35:44,986 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:35:44,993 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(14); 6#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post5, main_#t~post4, main_~i~0, main_~j~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~j~0 := 10;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 8#L24-3true [2020-11-30 00:35:44,993 INFO L796 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0 <= main_~n~0); 16#L25true assume main_~i~0 < main_~j~0;main_~sn~0 := 2 + main_~sn~0; 12#L25-2true main_#t~post5 := main_~j~0;main_~j~0 := main_#t~post5 - 1;havoc main_#t~post5; 10#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 8#L24-3true [2020-11-30 00:35:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:45,000 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-30 00:35:45,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:45,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251140886] [2020-11-30 00:35:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:45,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1234470, now seen corresponding path program 1 times [2020-11-30 00:35:45,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:45,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382772895] [2020-11-30 00:35:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,240 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:45,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:45,242 INFO L82 PathProgramCache]: Analyzing trace with hash 889661672, now seen corresponding path program 1 times [2020-11-30 00:35:45,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:45,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87557760] [2020-11-30 00:35:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:45,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:45,321 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:45,443 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:45,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:45,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:45,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:45,444 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:35:45,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:45,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:45,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:45,445 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2020-11-30 00:35:45,445 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:45,445 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:45,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:45,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:45,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:45,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:45,639 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:35:45,639 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:45,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:35:45,653 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:45,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:35:45,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:35:45,707 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:35:45,707 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:45,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:35:45,746 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:45,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:35:45,791 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:46,011 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:35:46,013 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:46,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:46,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:46,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:46,014 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:35:46,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:46,014 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:46,014 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:46,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2020-11-30 00:35:46,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:46,015 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:46,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,203 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:35:46,206 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:46,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:46,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:46,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:46,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:46,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:46,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:46,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:46,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:46,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/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 [2020-11-30 00:35:46,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:46,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:46,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:46,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:46,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:46,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:46,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:46,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:46,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:35:46,294 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:35:46,295 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:46,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:35:46,323 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:35:46,323 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:35:46,323 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:46,355 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:35:46,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:46,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:35:46,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:46,464 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:35:46,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:35:46,581 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-30 00:35:46,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 5 states. [2020-11-30 00:35:46,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 5 states. Result 39 states and 51 transitions. Complement of second has 7 states. [2020-11-30 00:35:46,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:35:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:35:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-30 00:35:46,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:35:46,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:46,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:35:46,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:46,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-30 00:35:46,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:46,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2020-11-30 00:35:46,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:35:46,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 15 states and 18 transitions. [2020-11-30 00:35:46,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-30 00:35:46,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 00:35:46,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2020-11-30 00:35:46,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:35:46,670 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-11-30 00:35:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2020-11-30 00:35:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-11-30 00:35:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:35:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-30 00:35:46,696 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-30 00:35:46,696 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-30 00:35:46,696 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:35:46,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-11-30 00:35:46,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:35:46,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:46,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:46,697 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-30 00:35:46,697 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:35:46,698 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(14); 99#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post5, main_#t~post4, main_~i~0, main_~j~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~j~0 := 10;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 100#L24-3 assume !!(main_~i~0 <= main_~n~0); 102#L25 [2020-11-30 00:35:46,698 INFO L796 eck$LassoCheckResult]: Loop: 102#L25 assume !(main_~i~0 < main_~j~0); 108#L25-2 main_#t~post5 := main_~j~0;main_~j~0 := main_#t~post5 - 1;havoc main_#t~post5; 106#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 101#L24-3 assume !!(main_~i~0 <= main_~n~0); 102#L25 [2020-11-30 00:35:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:46,698 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2020-11-30 00:35:46,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:46,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641033793] [2020-11-30 00:35:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:46,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:46,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:46,728 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:46,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1387322, now seen corresponding path program 1 times [2020-11-30 00:35:46,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:46,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534912301] [2020-11-30 00:35:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:46,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:46,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:46,738 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:46,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1809767648, now seen corresponding path program 1 times [2020-11-30 00:35:46,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:46,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947324535] [2020-11-30 00:35:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:46,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:35:46,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947324535] [2020-11-30 00:35:46,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:35:46,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:35:46,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319984542] [2020-11-30 00:35:46,834 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:46,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:46,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:46,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:46,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:35:46,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:46,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:46,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:46,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2020-11-30 00:35:46,835 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:46,836 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:46,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:46,964 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:35:46,964 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:46,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:35:46,972 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:47,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:35:47,023 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:47,340 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:35:47,341 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:47,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:47,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:47,342 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:47,342 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:35:47,342 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:47,342 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:47,342 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:47,342 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2020-11-30 00:35:47,342 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:47,342 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:47,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:47,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:47,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:47,427 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:35:47,427 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:47,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:47,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:47,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:47,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:47,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:47,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:47,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:47,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:47,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:35:47,461 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:35:47,461 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c26d2ff-3c45-44af-9f58-d0081cc8f712/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) [2020-11-30 00:35:47,467 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:35:47,467 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:35:47,468 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:35:47,468 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:47,503 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:35:47,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:47,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:35:47,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:47,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:35:47,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:35:47,565 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:35:47,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-30 00:35:47,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 23 states and 29 transitions. Complement of second has 6 states. [2020-11-30 00:35:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:35:47,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:35:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-11-30 00:35:47,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-30 00:35:47,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:47,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-30 00:35:47,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:47,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 8 letters. [2020-11-30 00:35:47,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:47,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2020-11-30 00:35:47,599 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:35:47,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-11-30 00:35:47,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:35:47,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:35:47,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:35:47,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:35:47,600 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:47,600 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:47,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:35:47,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:35:47,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:35:47,604 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-30 00:35:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:35:47,607 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-30 00:35:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:35:47,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-30 00:35:47,607 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:35:47,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:35:47,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:35:47,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:35:47,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:35:47,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:35:47,608 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:47,608 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:47,608 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:47,608 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:35:47,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:35:47,608 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:35:47,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:35:47,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:35:47 BoogieIcfgContainer [2020-11-30 00:35:47,614 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:35:47,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:35:47,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:35:47,615 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:35:47,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:44" (3/4) ... [2020-11-30 00:35:47,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:35:47,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:35:47,621 INFO L168 Benchmark]: Toolchain (without parser) took 3565.21 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 51.3 MB in the end (delta: -877.5 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:47,622 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 88.1 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:47,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.66 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 66.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:47,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 64.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:47,624 INFO L168 Benchmark]: Boogie Preprocessor took 44.28 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.8 MB in the end (delta: 758.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:47,625 INFO L168 Benchmark]: RCFGBuilder took 450.27 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 67.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:47,625 INFO L168 Benchmark]: BuchiAutomizer took 2762.10 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 67.2 MB in the beginning and 52.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:47,626 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 109.1 MB. Free memory was 52.2 MB in the beginning and 51.3 MB in the end (delta: 919.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:47,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 88.1 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.66 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 66.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 64.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.28 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.8 MB in the end (delta: 758.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.27 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 67.2 MB in the end (delta: -3.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2762.10 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 67.2 MB in the beginning and 52.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.49 ms. Allocated memory is still 109.1 MB. Free memory was 52.2 MB in the beginning and 51.3 MB in the end (delta: 919.6 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function j + -1 * i and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 15 SDslu, 14 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf97 lsp89 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...