./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fde3d54a6d21dc7fcdb8b6dec7e47021d215ebe0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:15,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:15,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:15,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:15,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:15,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:15,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:15,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:15,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:15,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:15,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:15,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:15,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:15,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:15,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:15,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:15,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:15,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:15,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:15,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:15,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:15,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:15,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:15,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:15,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:15,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:15,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:15,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:15,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:15,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:15,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:15,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:15,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:15,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:15,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:15,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:15,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:15,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:15,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:15,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:15,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:15,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:15:15,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:15,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:15,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:15,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:15,281 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:15,281 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:15:15,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:15:15,282 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:15:15,282 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:15:15,282 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:15:15,284 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:15:15,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:15,284 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:15,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:15,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:15,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:15,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:15,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:15:15,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:15:15,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:15:15,286 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:15,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:15,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:15:15,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:15,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:15:15,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:15,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:15,288 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:15:15,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:15,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:15,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:15,290 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:15:15,291 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:15:15,292 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_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde3d54a6d21dc7fcdb8b6dec7e47021d215ebe0 [2020-11-28 03:15:15,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:15,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:15,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:15,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:15,674 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:15,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/../../sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i [2020-11-28 03:15:15,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/data/56bbe30ac/637f7d582aeb44cb9b5284cb61de5b6c/FLAGcc19bd652 [2020-11-28 03:15:16,295 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:16,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/sv-benchmarks/c/array-industry-pattern/array_ptr_single_elem_init-2.i [2020-11-28 03:15:16,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/data/56bbe30ac/637f7d582aeb44cb9b5284cb61de5b6c/FLAGcc19bd652 [2020-11-28 03:15:16,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/data/56bbe30ac/637f7d582aeb44cb9b5284cb61de5b6c [2020-11-28 03:15:16,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:16,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:16,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:16,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:16,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:16,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:16,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a681332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16, skipping insertion in model container [2020-11-28 03:15:16,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:16,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:16,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:16,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:16,889 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:16,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:16,960 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:16,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16 WrapperNode [2020-11-28 03:15:16,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:16,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:16,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:16,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:16,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:17,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:17,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:17,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:17,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... [2020-11-28 03:15:17,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:17,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:17,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:17,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:17,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:17,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:17,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:17,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:15:17,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:15:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:17,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:17,688 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 03:15:17,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:17 BoogieIcfgContainer [2020-11-28 03:15:17,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:17,692 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:15:17,693 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:15:17,696 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:15:17,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:17,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:15:16" (1/3) ... [2020-11-28 03:15:17,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218ca548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:15:17, skipping insertion in model container [2020-11-28 03:15:17,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:17,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:16" (2/3) ... [2020-11-28 03:15:17,700 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@218ca548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:15:17, skipping insertion in model container [2020-11-28 03:15:17,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:17,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:17" (3/3) ... [2020-11-28 03:15:17,703 INFO L373 chiAutomizerObserver]: Analyzing ICFG array_ptr_single_elem_init-2.i [2020-11-28 03:15:17,783 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:15:17,783 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:15:17,784 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:15:17,784 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:17,784 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:17,784 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:15:17,784 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:17,784 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:15:17,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-11-28 03:15:17,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-11-28 03:15:17,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:17,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:17,830 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:15:17,831 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:15:17,831 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:15:17,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-11-28 03:15:17,835 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-11-28 03:15:17,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:17,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:17,835 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:15:17,835 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:15:17,843 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(31); 11#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~mem5, main_#t~mem6, main_#t~post3, main_~q~0, main_#t~mem8, main_#t~post7, main_~i~0, main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~0.offset, main_~c~0;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);call main_~#b~0.base, main_~#b~0.offset := #Ultimate.allocOnStack(400000);havoc main_~c~0;main_~i~0 := 0; 5#L21-3true [2020-11-28 03:15:17,843 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-3true assume !!(main_~i~0 < 100000);main_~q~0 := main_#t~nondet4;havoc main_#t~nondet4;call write~int(0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 23#L25true assume 0 == main_~q~0;call write~int(1, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~int((if main_~i~0 < 0 && 0 != main_~i~0 % 2 then main_~i~0 % 2 - 2 else main_~i~0 % 2), main_~#b~0.base, main_~#b~0.offset + 4 * main_~i~0, 4); 18#L25-2true call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 9#L30true assume !(0 != main_#t~mem5);havoc main_#t~mem5; 8#L21-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5#L21-3true [2020-11-28 03:15:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:17,851 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:15:17,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:17,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340727588] [2020-11-28 03:15:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:17,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:18,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:18,048 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:18,050 INFO L82 PathProgramCache]: Analyzing trace with hash 38268879, now seen corresponding path program 1 times [2020-11-28 03:15:18,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:18,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197349347] [2020-11-28 03:15:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:18,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:18,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:18,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:18,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1809708365, now seen corresponding path program 1 times [2020-11-28 03:15:18,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:18,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889864063] [2020-11-28 03:15:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:18,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889864063] [2020-11-28 03:15:18,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:18,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:15:18,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54621364] [2020-11-28 03:15:18,571 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-11-28 03:15:18,787 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-11-28 03:15:18,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:18,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:15:18,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:18,812 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-11-28 03:15:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:18,980 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-11-28 03:15:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:15:18,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-11-28 03:15:18,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-11-28 03:15:18,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 24 transitions. [2020-11-28 03:15:19,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 03:15:19,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 03:15:19,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2020-11-28 03:15:19,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:15:19,005 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 03:15:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2020-11-28 03:15:19,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2020-11-28 03:15:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:15:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-11-28 03:15:19,041 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-28 03:15:19,042 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-28 03:15:19,042 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:15:19,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-11-28 03:15:19,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2020-11-28 03:15:19,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:19,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:19,049 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:15:19,049 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:15:19,050 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(31); 71#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~mem5, main_#t~mem6, main_#t~post3, main_~q~0, main_#t~mem8, main_#t~post7, main_~i~0, main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~0.offset, main_~c~0;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);call main_~#b~0.base, main_~#b~0.offset := #Ultimate.allocOnStack(400000);havoc main_~c~0;main_~i~0 := 0; 64#L21-3 [2020-11-28 03:15:19,050 INFO L796 eck$LassoCheckResult]: Loop: 64#L21-3 assume !!(main_~i~0 < 100000);main_~q~0 := main_#t~nondet4;havoc main_#t~nondet4;call write~int(0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 65#L25 assume !(0 == main_~q~0); 74#L25-2 call main_#t~mem5 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 75#L30 assume !(0 != main_#t~mem5);havoc main_#t~mem5; 67#L21-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 64#L21-3 [2020-11-28 03:15:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-28 03:15:19,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:19,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88218678] [2020-11-28 03:15:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,114 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:19,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:19,120 INFO L82 PathProgramCache]: Analyzing trace with hash 38328461, now seen corresponding path program 1 times [2020-11-28 03:15:19,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:19,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930192241] [2020-11-28 03:15:19,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:19,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:19,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1809767947, now seen corresponding path program 1 times [2020-11-28 03:15:19,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:19,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382602506] [2020-11-28 03:15:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:19,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:19,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:19,888 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-11-28 03:15:20,020 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-11-28 03:15:20,033 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:20,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:20,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:20,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:20,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:15:20,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:20,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:20,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:20,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_ptr_single_elem_init-2.i_Iteration2_Lasso [2020-11-28 03:15:20,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:20,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:20,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,331 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-11-28 03:15:20,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:20,895 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:20,902 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:20,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:20,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:20,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:20,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:20,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:20,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:20,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:20,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:20,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:20,977 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 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:20,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:20,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:20,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:20,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:20,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:20,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:20,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:20,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:21,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:21,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:21,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:21,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:15:21,093 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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) [2020-11-28 03:15:21,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:21,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:21,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:15:21,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:21,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:21,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:21,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:21,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:21,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:21,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:21,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:21,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:21,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:21,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:21,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:21,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:15:21,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:15:21,518 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-28 03:15:21,518 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:21,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,535 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:15:21,536 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:15:21,537 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199999 Supporting invariants [] [2020-11-28 03:15:21,630 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-28 03:15:21,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:21,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:21,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:21,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:15:21,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:21,740 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 [2020-11-28 03:15:21,740 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-28 03:15:21,820 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 25 states and 36 transitions. Complement of second has 7 states. [2020-11-28 03:15:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:15:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:15:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-28 03:15:21,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 5 letters. [2020-11-28 03:15:21,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:21,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 5 letters. [2020-11-28 03:15:21,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:21,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 10 letters. [2020-11-28 03:15:21,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:21,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 36 transitions. [2020-11-28 03:15:21,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:15:21,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 23 transitions. [2020-11-28 03:15:21,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:15:21,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-28 03:15:21,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2020-11-28 03:15:21,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:15:21,834 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-11-28 03:15:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2020-11-28 03:15:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 03:15:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 03:15:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-11-28 03:15:21,838 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-11-28 03:15:21,838 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-11-28 03:15:21,838 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:15:21,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-11-28 03:15:21,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:15:21,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:21,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:21,843 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:15:21,843 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:15:21,843 INFO L794 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(31); 202#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~mem5, main_#t~mem6, main_#t~post3, main_~q~0, main_#t~mem8, main_#t~post7, main_~i~0, main_~#a~0.base, main_~#a~0.offset, main_~#b~0.base, main_~#b~0.offset, main_~c~0;havoc main_~i~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(400000);call main_~#b~0.base, main_~#b~0.offset := #Ultimate.allocOnStack(400000);havoc main_~c~0;main_~i~0 := 0; 194#L21-3 assume !(main_~i~0 < 100000); 192#L21-4 call write~int(1, main_~#a~0.base, 60000 + main_~#a~0.offset, 4);main_~i~0 := 0; 193#L43-3 [2020-11-28 03:15:21,844 INFO L796 eck$LassoCheckResult]: Loop: 193#L43-3 assume !!(main_~i~0 < 100000); 197#L45 assume !(15000 == main_~i~0); 201#L43-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 193#L43-3 [2020-11-28 03:15:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:21,846 INFO L82 PathProgramCache]: Analyzing trace with hash 925725, now seen corresponding path program 1 times [2020-11-28 03:15:21,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:21,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588174986] [2020-11-28 03:15:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:21,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588174986] [2020-11-28 03:15:21,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:21,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:15:21,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379327536] [2020-11-28 03:15:21,900 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:15:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash 72171, now seen corresponding path program 1 times [2020-11-28 03:15:21,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:21,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658684270] [2020-11-28 03:15:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:21,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:21,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:21,911 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:21,928 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:21,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:21,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:21,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:21,929 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:15:21,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:21,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:21,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:21,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_ptr_single_elem_init-2.i_Iteration3_Loop [2020-11-28 03:15:21,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:21,930 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:21,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:21,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:22,030 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:22,031 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:22,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:22,037 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,043 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:22,043 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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 [2020-11-28 03:15:22,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:22,079 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:15:22,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:15:22,202 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:15:22,204 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:22,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:22,205 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:22,205 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:22,205 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:15:22,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:22,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:22,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_ptr_single_elem_init-2.i_Iteration3_Loop [2020-11-28 03:15:22,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:22,205 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:22,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:22,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:22,312 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:22,312 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:15:22,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:22,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:22,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:22,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:22,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:22,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:22,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:22,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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) [2020-11-28 03:15:22,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:15:22,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:22,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:22,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:22,411 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:15:22,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,414 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:15:22,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:22,419 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:15:22,424 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:15:22,424 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a4aa004-86a4-45e6-bf88-8f65fa503db3/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) [2020-11-28 03:15:22,433 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:15:22,433 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:15:22,433 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:15:22,433 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199999 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:22,476 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:15:22,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:22,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:15:22,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:22,570 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:15:22,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:22,657 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 [2020-11-28 03:15:22,657 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 03:15:22,684 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 30 transitions. Complement of second has 4 states. [2020-11-28 03:15:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:15:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:15:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2020-11-28 03:15:22,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2020-11-28 03:15:22,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:22,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-28 03:15:22,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:22,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 4 letters. Loop has 6 letters. [2020-11-28 03:15:22,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:22,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2020-11-28 03:15:22,688 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:15:22,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2020-11-28 03:15:22,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:15:22,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:15:22,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:15:22,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:15:22,688 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:22,689 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:22,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:22,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:15:22,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:15:22,690 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-28 03:15:22,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:22,690 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-28 03:15:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:15:22,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-28 03:15:22,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:15:22,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:15:22,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:15:22,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:15:22,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:15:22,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:15:22,691 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:22,691 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:22,691 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:22,691 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:15:22,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:22,692 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:15:22,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:15:22,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:15:22 BoogieIcfgContainer [2020-11-28 03:15:22,697 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:15:22,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:22,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:22,698 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:22,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:17" (3/4) ... [2020-11-28 03:15:22,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:15:22,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:22,707 INFO L168 Benchmark]: Toolchain (without parser) took 6068.49 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.9 MB in the beginning and 90.7 MB in the end (delta: -21.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:22,714 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 75.5 MB. Free memory was 33.7 MB in the beginning and 33.7 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:22,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.00 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 78.0 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:22,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:22,716 INFO L168 Benchmark]: Boogie Preprocessor took 58.43 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:22,717 INFO L168 Benchmark]: RCFGBuilder took 595.64 ms. Allocated memory is still 102.8 MB. Free memory was 75.3 MB in the beginning and 60.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:22,717 INFO L168 Benchmark]: BuchiAutomizer took 5005.12 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 60.6 MB in the beginning and 90.7 MB in the end (delta: -30.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:22,721 INFO L168 Benchmark]: Witness Printer took 6.78 ms. Allocated memory is still 123.7 MB. Free memory is still 90.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:22,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 75.5 MB. Free memory was 33.7 MB in the beginning and 33.7 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.00 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 78.0 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.55 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.43 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 75.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 595.64 ms. Allocated memory is still 102.8 MB. Free memory was 75.3 MB in the beginning and 60.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5005.12 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 60.6 MB in the beginning and 90.7 MB in the end (delta: -30.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.78 ms. Allocated memory is still 123.7 MB. Free memory is still 90.7 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199999 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 199999 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 36 SDtfs, 55 SDslu, 29 SDs, 0 SdLazy, 66 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital72 mio100 ax100 hnf100 lsp96 ukn85 mio100 lsp81 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf143 smp94 tf103 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...