./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:39:50,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:39:50,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:39:50,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:39:50,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:39:50,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:39:50,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:39:50,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:39:50,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:39:50,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:39:50,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:39:50,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:39:50,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:39:50,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:39:50,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:39:50,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:39:50,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:39:50,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:39:50,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:39:50,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:39:50,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:39:50,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:39:50,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:39:50,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:39:50,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:39:50,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:39:50,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:39:50,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:39:50,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:39:50,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:39:50,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:39:50,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:39:50,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:39:50,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:39:50,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:39:50,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:39:50,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:39:50,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:39:50,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:39:50,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:39:50,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:39:50,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 18:39:50,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:39:50,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:39:50,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:39:50,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:39:50,941 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:39:50,942 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:39:50,942 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:39:50,942 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:39:50,943 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:39:50,943 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:39:50,945 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:39:50,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:39:50,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:39:50,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:39:50,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:39:50,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:39:50,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:39:50,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:39:50,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:39:50,948 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:39:50,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:39:50,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:39:50,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:39:50,949 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:39:50,950 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:39:50,950 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2020-11-29 18:39:51,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:39:51,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:39:51,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:39:51,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:39:51,319 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:39:51,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-11-29 18:39:51,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/data/d946bb5b6/77b53bec1ab94e1ea407f2b9c190252d/FLAGf84491e8f [2020-11-29 18:39:52,100 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:39:52,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-11-29 18:39:52,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/data/d946bb5b6/77b53bec1ab94e1ea407f2b9c190252d/FLAGf84491e8f [2020-11-29 18:39:52,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/data/d946bb5b6/77b53bec1ab94e1ea407f2b9c190252d [2020-11-29 18:39:52,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:39:52,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:39:52,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:52,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:39:52,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:39:52,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69554c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52, skipping insertion in model container [2020-11-29 18:39:52,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:39:52,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:39:52,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:52,694 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:39:52,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:52,741 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:39:52,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52 WrapperNode [2020-11-29 18:39:52,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:52,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:52,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:39:52,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:39:52,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:52,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:39:52,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:39:52,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:39:52,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... [2020-11-29 18:39:52,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:39:52,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:39:52,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:39:52,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:39:52,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:39:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:39:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:39:53,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:39:53,219 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 18:39:53,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:53 BoogieIcfgContainer [2020-11-29 18:39:53,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:39:53,224 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:39:53,224 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:39:53,230 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:39:53,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:53,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:39:52" (1/3) ... [2020-11-29 18:39:53,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fce5d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:39:53, skipping insertion in model container [2020-11-29 18:39:53,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:53,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:52" (2/3) ... [2020-11-29 18:39:53,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fce5d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:39:53, skipping insertion in model container [2020-11-29 18:39:53,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:53,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:53" (3/3) ... [2020-11-29 18:39:53,238 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-11-29 18:39:53,333 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:39:53,334 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:39:53,334 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:39:53,334 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:39:53,334 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:39:53,334 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:39:53,335 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:39:53,335 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:39:53,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-29 18:39:53,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 18:39:53,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:53,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:53,387 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:39:53,388 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 18:39:53,388 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:39:53,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-29 18:39:53,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 18:39:53,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:53,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:53,392 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:39:53,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 18:39:53,405 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 8#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 5#L19-2true [2020-11-29 18:39:53,406 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L21true assume !(main_~y~0 < main_~x~0); 12#L21-1true main_~x~0 := main_~x~0 - 1; 5#L19-2true [2020-11-29 18:39:53,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-29 18:39:53,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:53,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592092396] [2020-11-29 18:39:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,610 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:53,616 INFO L82 PathProgramCache]: Analyzing trace with hash 43246, now seen corresponding path program 1 times [2020-11-29 18:39:53,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:53,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122560797] [2020-11-29 18:39:53,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,665 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:53,672 INFO L82 PathProgramCache]: Analyzing trace with hash 29685291, now seen corresponding path program 1 times [2020-11-29 18:39:53,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:53,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731243618] [2020-11-29 18:39:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:53,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:53,723 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:53,860 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:53,861 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:53,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:53,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:53,862 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:39:53,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:53,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:53,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:53,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2020-11-29 18:39:53,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:53,863 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:53,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:53,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:53,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:54,187 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:54,192 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:54,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:39:54,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:54,211 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:39:54,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:54,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:39:54,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:54,249 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:39:54,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:54,282 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:39:54,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:39:54,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:39:54,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:39:54,376 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:54,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:54,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:54,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:54,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:54,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:54,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:54,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2020-11-29 18:39:54,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:54,378 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:54,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:54,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:54,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:54,586 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 18:39:54,702 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:54,708 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:54,729 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 [2020-11-29 18:39:54,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:54,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:54,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:54,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:54,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:54,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:54,836 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 [2020-11-29 18:39:54,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:54,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:54,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:54,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:54,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:54,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:54,925 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 [2020-11-29 18:39:54,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:54,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:54,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:54,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:54,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:54,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:54,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:39:54,951 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:39:54,952 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:54,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:39:54,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:39:54,958 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:39:54,959 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-11-29 18:39:55,006 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 18:39:55,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:55,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:39:55,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:55,103 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:39:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:55,155 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 [2020-11-29 18:39:55,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2020-11-29 18:39:55,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 44 transitions. Complement of second has 7 states. [2020-11-29 18:39:55,273 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 [2020-11-29 18:39:55,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:39:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-11-29 18:39:55,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2020-11-29 18:39:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:55,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-29 18:39:55,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:55,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-29 18:39:55,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:55,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2020-11-29 18:39:55,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:39:55,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 13 transitions. [2020-11-29 18:39:55,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-29 18:39:55,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-29 18:39:55,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-11-29 18:39:55,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:55,303 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-11-29 18:39:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-11-29 18:39:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 18:39:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 18:39:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-11-29 18:39:55,338 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-11-29 18:39:55,338 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-11-29 18:39:55,338 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:39:55,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2020-11-29 18:39:55,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:39:55,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:55,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:55,341 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 18:39:55,341 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:39:55,341 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 88#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 89#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 82#L21 assume main_~y~0 < main_~x~0; 83#L22-2 [2020-11-29 18:39:55,342 INFO L796 eck$LassoCheckResult]: Loop: 83#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 83#L22-2 [2020-11-29 18:39:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:55,342 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2020-11-29 18:39:55,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:55,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640655237] [2020-11-29 18:39:55,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:55,365 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-11-29 18:39:55,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:55,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073736387] [2020-11-29 18:39:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,378 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:55,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:55,378 INFO L82 PathProgramCache]: Analyzing trace with hash 29684850, now seen corresponding path program 1 times [2020-11-29 18:39:55,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:55,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334523907] [2020-11-29 18:39:55,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:55,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:55,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:55,555 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-11-29 18:39:55,604 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:55,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:55,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:55,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:55,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:39:55,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:55,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:55,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:55,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2020-11-29 18:39:55,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:55,605 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:55,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:55,831 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:55,831 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:55,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:55,841 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 [2020-11-29 18:39:55,847 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:55,847 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:55,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:55,887 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:55,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:55,890 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:39:55,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:55,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:39:55,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:55,934 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:55,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:55,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:39:55,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:55,978 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:56,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:56,039 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 [2020-11-29 18:39:56,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:39:56,048 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:56,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:39:56,105 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:39:56,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:39:56,178 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:08,323 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-11-29 18:40:08,336 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:08,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:08,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:08,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:08,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:40:08,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:08,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:08,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:08,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2020-11-29 18:40:08,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:08,337 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:08,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:08,553 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:08,553 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:08,568 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 [2020-11-29 18:40:08,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:08,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:08,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:08,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:08,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:08,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:08,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:08,644 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 [2020-11-29 18:40:08,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:08,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:08,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:08,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:08,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:08,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:08,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:08,736 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 18:40:08,736 INFO L444 ModelExtractionUtils]: 3 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:40:08,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:40:08,753 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-11-29 18:40:08,753 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:08,754 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483645 Supporting invariants [-1*ULTIMATE.start_main_~x~0 + 1073741823 >= 0, 1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-11-29 18:40:08,830 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2020-11-29 18:40:08,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:08,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:40:08,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:08,980 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:40:08,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:08,981 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-11-29 18:40:08,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-29 18:40:09,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2020-11-29 18:40:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:40:09,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 18:40:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-11-29 18:40:09,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-29 18:40:09,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:09,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-29 18:40:09,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:09,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 18:40:09,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:09,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2020-11-29 18:40:09,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 21 transitions. [2020-11-29 18:40:09,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-29 18:40:09,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-29 18:40:09,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2020-11-29 18:40:09,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:09,095 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-29 18:40:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2020-11-29 18:40:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2020-11-29 18:40:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:40:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-11-29 18:40:09,107 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 18:40:09,108 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 18:40:09,108 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:40:09,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-11-29 18:40:09,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:09,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:09,112 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-11-29 18:40:09,113 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:40:09,113 INFO L794 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 170#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 171#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 172#L21 assume main_~y~0 < main_~x~0; 167#L22-2 assume !(main_~y~0 < main_~x~0); 168#L21-1 main_~x~0 := main_~x~0 - 1; 174#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 164#L21 assume main_~y~0 < main_~x~0; 165#L22-2 [2020-11-29 18:40:09,113 INFO L796 eck$LassoCheckResult]: Loop: 165#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 165#L22-2 [2020-11-29 18:40:09,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,114 INFO L82 PathProgramCache]: Analyzing trace with hash -421925037, now seen corresponding path program 1 times [2020-11-29 18:40:09,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544523548] [2020-11-29 18:40:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:09,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544523548] [2020-11-29 18:40:09,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:40:09,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:40:09,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032229488] [2020-11-29 18:40:09,192 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:40:09,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,193 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-11-29 18:40:09,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368707009] [2020-11-29 18:40:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,205 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:09,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:40:09,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:40:09,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:40:09,263 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-29 18:40:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:40:09,287 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2020-11-29 18:40:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:40:09,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2020-11-29 18:40:09,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2020-11-29 18:40:09,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 18:40:09,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-29 18:40:09,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2020-11-29 18:40:09,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:09,291 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-11-29 18:40:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2020-11-29 18:40:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-29 18:40:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 18:40:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-11-29 18:40:09,294 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 18:40:09,294 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 18:40:09,294 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:40:09,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-11-29 18:40:09,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:09,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:09,297 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-11-29 18:40:09,297 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:40:09,297 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 202#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 203#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 198#L21 assume main_~y~0 < main_~x~0; 199#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 205#L22-2 assume !(main_~y~0 < main_~x~0); 208#L21-1 main_~x~0 := main_~x~0 - 1; 206#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 196#L21 assume main_~y~0 < main_~x~0; 197#L22-2 [2020-11-29 18:40:09,297 INFO L796 eck$LassoCheckResult]: Loop: 197#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 197#L22-2 [2020-11-29 18:40:09,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,298 INFO L82 PathProgramCache]: Analyzing trace with hash -193177154, now seen corresponding path program 1 times [2020-11-29 18:40:09,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675592020] [2020-11-29 18:40:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:09,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675592020] [2020-11-29 18:40:09,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664925072] [2020-11-29 18:40:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-29 18:40:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:40:09,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:40:09,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:09,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:40:09,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-29 18:40:09,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152959450] [2020-11-29 18:40:09,513 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:40:09,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2020-11-29 18:40:09,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985766653] [2020-11-29 18:40:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:09,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:40:09,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:40:09,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:40:09,559 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand 8 states. [2020-11-29 18:40:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:40:09,717 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-11-29 18:40:09,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:40:09,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-11-29 18:40:09,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 14 states and 16 transitions. [2020-11-29 18:40:09,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 18:40:09,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 18:40:09,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2020-11-29 18:40:09,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:09,722 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-29 18:40:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2020-11-29 18:40:09,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2020-11-29 18:40:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 18:40:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-29 18:40:09,724 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-29 18:40:09,725 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-29 18:40:09,725 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:40:09,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-11-29 18:40:09,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 18:40:09,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:09,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:09,726 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-11-29 18:40:09,726 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 18:40:09,727 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 284#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 285#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 281#L21 assume main_~y~0 < main_~x~0; 282#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 287#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 289#L22-2 assume !(main_~y~0 < main_~x~0); 288#L21-1 main_~x~0 := main_~x~0 - 1; 286#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 279#L21 assume main_~y~0 < main_~x~0; 280#L22-2 [2020-11-29 18:40:09,727 INFO L796 eck$LassoCheckResult]: Loop: 280#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 280#L22-2 [2020-11-29 18:40:09,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1691927373, now seen corresponding path program 2 times [2020-11-29 18:40:09,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709515430] [2020-11-29 18:40:09,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:09,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,771 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2020-11-29 18:40:09,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785972709] [2020-11-29 18:40:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,785 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:09,786 INFO L82 PathProgramCache]: Analyzing trace with hash -910140986, now seen corresponding path program 3 times [2020-11-29 18:40:09,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:09,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75636422] [2020-11-29 18:40:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:09,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:09,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:09,980 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-11-29 18:40:10,003 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:10,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:10,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:10,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:10,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:40:10,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:10,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:10,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2020-11-29 18:40:10,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:10,004 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:10,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,172 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:10,172 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:40:10,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:40:10,206 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:40:10,211 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:40:10,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:40:10,267 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:40:10,271 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:40:10,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:40:10,324 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:40:10,328 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_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:10,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:40:10,378 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,384 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:40:10,384 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:40:10,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:40:10,439 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:40:10,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:40:10,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:40:10,677 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 18:40:10,679 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:10,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:10,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:10,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:10,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:40:10,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:10,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:10,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2020-11-29 18:40:10,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:10,680 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:10,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:10,888 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:10,888 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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) [2020-11-29 18:40:10,898 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 [2020-11-29 18:40:10,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:10,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:10,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:10,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:10,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:10,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:10,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/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 [2020-11-29 18:40:10,955 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 [2020-11-29 18:40:10,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:10,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:10,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:10,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:10,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:10,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:10,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:10,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:10,995 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 [2020-11-29 18:40:10,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:10,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:10,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:10,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:10,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:10,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:10,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:11,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:11,034 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 [2020-11-29 18:40:11,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:11,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:11,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:11,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:11,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:11,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:11,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:11,095 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 [2020-11-29 18:40:11,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:11,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:11,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:11,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:11,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:11,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:11,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:11,142 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 18:40:11,142 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9145f9a1-137c-4adb-9f74-5f9494b9e2ca/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:11,150 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:11,154 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:40:11,155 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:11,155 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-11-29 18:40:11,202 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-29 18:40:11,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,325 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:11,326 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-11-29 18:40:11,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-29 18:40:11,386 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2020-11-29 18:40:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:40:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:40:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-11-29 18:40:11,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2020-11-29 18:40:11,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:11,388 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:40:11,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,459 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:11,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2020-11-29 18:40:11,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-29 18:40:11,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2020-11-29 18:40:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:40:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:40:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-11-29 18:40:11,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2020-11-29 18:40:11,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:11,504 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:40:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:11,572 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:40:11,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:11,574 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-11-29 18:40:11,574 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-29 18:40:11,621 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 14 states and 16 transitions. Complement of second has 5 states. [2020-11-29 18:40:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:40:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:40:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-29 18:40:11,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 1 letters. [2020-11-29 18:40:11,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:11,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2020-11-29 18:40:11,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:11,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-29 18:40:11,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:11,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-11-29 18:40:11,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:40:11,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:40:11,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:40:11,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:40:11,626 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:40:11,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:40:11,626 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:40:11,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:40:11,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:40:11 BoogieIcfgContainer [2020-11-29 18:40:11,640 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:40:11,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:40:11,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:40:11,640 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:40:11,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:53" (3/4) ... [2020-11-29 18:40:11,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:40:11,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:40:11,646 INFO L168 Benchmark]: Toolchain (without parser) took 19188.61 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.8 MB in the beginning and 65.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:11,647 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:11,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.60 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 76.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:11,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 98.6 MB. Free memory was 76.7 MB in the beginning and 75.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:11,649 INFO L168 Benchmark]: Boogie Preprocessor took 32.87 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 74.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:11,650 INFO L168 Benchmark]: RCFGBuilder took 381.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 65.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:11,651 INFO L168 Benchmark]: BuchiAutomizer took 18415.97 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 65.1 MB in the end (delta: 559.0 kB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:11,652 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 119.5 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:11,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.60 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 76.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 98.6 MB. Free memory was 76.7 MB in the beginning and 75.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.87 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 74.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 381.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 65.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 18415.97 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 65.1 MB in the end (delta: 559.0 kB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 119.5 MB. Free memory is still 65.1 MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483645 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 17.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 11 SDs, 0 SdLazy, 108 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf97 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...