./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_trans.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_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_trans.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 b2585982366e12850b78353d5a08eef796173b16 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:55:50,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:50,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:50,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:50,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:50,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:50,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:50,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:50,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:50,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:50,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:50,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:50,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:50,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:50,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:50,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:50,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:50,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:50,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:50,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:50,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:50,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:50,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:50,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:50,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:50,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:50,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:50,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:50,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:50,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:50,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:50,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:50,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:50,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:50,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:50,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:50,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:50,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:50,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:50,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:50,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:50,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:55:50,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:50,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:50,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:50,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:50,967 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:50,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:55:50,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:55:50,967 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:55:50,967 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:55:50,968 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:55:50,969 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:55:50,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:50,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:55:50,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:55:50,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:55:50,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:50,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:50,971 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:55:50,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:50,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:55:50,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:50,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:50,972 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:55:50,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:50,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:50,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:50,975 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:55:50,976 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:55:50,976 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_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2585982366e12850b78353d5a08eef796173b16 [2020-11-29 23:55:51,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:51,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:51,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:51,240 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:51,240 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:51,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/id_trans.i [2020-11-29 23:55:51,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/data/b7868be8d/36d039ef27f94a968c394f80bb9d3a58/FLAG53cb63879 [2020-11-29 23:55:51,752 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:51,752 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/sv-benchmarks/c/loop-invgen/id_trans.i [2020-11-29 23:55:51,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/data/b7868be8d/36d039ef27f94a968c394f80bb9d3a58/FLAG53cb63879 [2020-11-29 23:55:52,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/data/b7868be8d/36d039ef27f94a968c394f80bb9d3a58 [2020-11-29 23:55:52,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:52,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:52,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:52,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:52,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:52,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6102d644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52, skipping insertion in model container [2020-11-29 23:55:52,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:52,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:52,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:52,384 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:52,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:52,415 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:52,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52 WrapperNode [2020-11-29 23:55:52,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:52,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:52,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:52,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:52,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:52,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:52,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:52,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:52,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... [2020-11-29 23:55:52,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:52,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:52,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:52,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:52,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 23:55:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:52,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:52,809 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-29 23:55:52,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:52 BoogieIcfgContainer [2020-11-29 23:55:52,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:52,819 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:55:52,819 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:55:52,822 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:55:52,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:52,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:55:52" (1/3) ... [2020-11-29 23:55:52,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b1243fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:52, skipping insertion in model container [2020-11-29 23:55:52,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:52,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:52" (2/3) ... [2020-11-29 23:55:52,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b1243fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:52, skipping insertion in model container [2020-11-29 23:55:52,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:52,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:52" (3/3) ... [2020-11-29 23:55:52,834 INFO L373 chiAutomizerObserver]: Analyzing ICFG id_trans.i [2020-11-29 23:55:52,902 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:55:52,902 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:55:52,902 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:55:52,902 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:52,902 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:52,902 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:55:52,902 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:52,902 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:55:52,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-29 23:55:52,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2020-11-29 23:55:52,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:52,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:52,934 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:55:52,934 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:52,934 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:55:52,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-29 23:55:52,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2020-11-29 23:55:52,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:52,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:52,938 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:55:52,938 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:52,945 INFO L794 eck$LassoCheckResult]: Stem: 27#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(9); 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_~idBitLength~0, main_~material_length~0, main_~nlen~0, main_~j~0, main_~k~0;havoc main_~idBitLength~0;havoc main_~material_length~0;havoc main_~nlen~0;havoc main_~j~0;havoc main_~k~0;main_~nlen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~idBitLength~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~material_length~0 := main_#t~nondet5;havoc main_#t~nondet5; 24#L30true assume !!(main_~nlen~0 == (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 32 then 1 + main_~idBitLength~0 / 32 else main_~idBitLength~0 / 32));main_~j~0 := 0; 7#L31-2true [2020-11-29 23:55:52,946 INFO L796 eck$LassoCheckResult]: Loop: 7#L31-2true assume !!(main_~j~0 < (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 8 then 1 + main_~idBitLength~0 / 8 else main_~idBitLength~0 / 8) && main_~j~0 < main_~material_length~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 6#L18true assume !(0 == __VERIFIER_assert_~cond); 4#L18-2true __VERIFIER_assert_#in~cond := (if main_~j~0 < main_~material_length~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 14#L18-5true __VERIFIER_assert_#in~cond := (if 0 <= (if main_~j~0 < 0 && 0 != main_~j~0 % 4 then 1 + main_~j~0 / 4 else main_~j~0 / 4) then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 12#L18-6true assume !(0 == __VERIFIER_assert_~cond); 10#L18-8true __VERIFIER_assert_#in~cond := (if (if main_~j~0 < 0 && 0 != main_~j~0 % 4 then 1 + main_~j~0 / 4 else main_~j~0 / 4) < main_~nlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 26#L18-9true assume !(0 == __VERIFIER_assert_~cond); 21#L18-11true main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 7#L31-2true [2020-11-29 23:55:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:52,952 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-29 23:55:52,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:52,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604764434] [2020-11-29 23:55:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,096 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:53,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:53,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1457815803, now seen corresponding path program 1 times [2020-11-29 23:55:53,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:53,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150725426] [2020-11-29 23:55:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash 686396344, now seen corresponding path program 1 times [2020-11-29 23:55:53,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:53,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064108109] [2020-11-29 23:55:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:53,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:53,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:53,500 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-11-29 23:55:53,567 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:53,578 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:53,592 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:53,592 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:53,765 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 23 [2020-11-29 23:55:53,776 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:53,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:53,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:53,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:53,777 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:53,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:53,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:53,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:53,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2020-11-29 23:55:53,779 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:53,779 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:53,799 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 23:55:53,805 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 23:55:53,828 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 23:55:53,925 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:53,925 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 23:55:53,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:53,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:53,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:55:53,952 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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) [2020-11-29 23:55:54,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:54,005 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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) [2020-11-29 23:55:54,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:54,060 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:54,137 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:54,139 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:54,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:54,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:54,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:54,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:54,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:54,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:54,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:54,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2020-11-29 23:55:54,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:54,141 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:54,142 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 23:55:54,147 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 23:55:54,158 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 23:55:54,268 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:54,273 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 23:55:54,279 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 23:55:54,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:54,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:54,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:54,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:54,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:54,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:54,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:54,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:54,335 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 23:55:54,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:54,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:54,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:54,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:54,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:54,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:54,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:54,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 23:55:54,387 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 23:55:54,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:54,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:54,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:54,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:54,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:54,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:54,405 INFO L402 nArgumentSynthesizer]: A total of 0 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 23:55:54,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:55:54,433 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 23:55:54,433 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2a4d94-12b1-44a8-89a6-27b0ec62fac1/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 23:55:54,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:55:54,477 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:55:54,478 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:55:54,478 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~nlen~0) = -1*ULTIMATE.start_main_~j~0 + 4*ULTIMATE.start_main_~nlen~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:54,502 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:55:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:54,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:54,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:54,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 23:55:54,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:54,785 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-11-29 23:55:54,790 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:55:54,796 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:54,798 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:54,800 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:54,804 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:54,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:55,007 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-11-29 23:55:55,012 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:55:55,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:55,020 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:55,021 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:55,024 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:55:55,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:55:55,106 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 23:55:55,121 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-11-29 23:55:55,122 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 7 states. [2020-11-29 23:55:55,501 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-11-29 23:55:55,519 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states.. Second operand 7 states. Result 73 states and 95 transitions. Complement of second has 13 states. [2020-11-29 23:55:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 23:55:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2020-11-29 23:55:55,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 9 letters. [2020-11-29 23:55:55,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:55,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 12 letters. Loop has 9 letters. [2020-11-29 23:55:55,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:55,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 18 letters. [2020-11-29 23:55:55,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:55,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 95 transitions. [2020-11-29 23:55:55,543 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:55:55,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2020-11-29 23:55:55,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:55:55,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:55:55,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:55:55,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:55:55,548 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:55:55,548 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:55:55,548 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:55:55,548 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:55:55,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:55:55,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:55:55,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:55:55,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:55:55 BoogieIcfgContainer [2020-11-29 23:55:55,555 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:55:55,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:55,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:55,556 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:55,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:52" (3/4) ... [2020-11-29 23:55:55,559 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:55:55,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:55,563 INFO L168 Benchmark]: Toolchain (without parser) took 3407.62 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 101.9 MB in the beginning and 46.6 MB in the end (delta: 55.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:55,564 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:55,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.53 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 101.9 MB in the end (delta: 15.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:55,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 100.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:55,567 INFO L168 Benchmark]: Boogie Preprocessor took 19.86 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 99.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:55,568 INFO L168 Benchmark]: RCFGBuilder took 339.94 ms. Allocated memory is still 127.9 MB. Free memory was 99.3 MB in the beginning and 85.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:55,575 INFO L168 Benchmark]: BuchiAutomizer took 2736.72 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 85.7 MB in the beginning and 46.6 MB in the end (delta: 39.1 MB). Peak memory consumption was 66.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:55,576 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 155.2 MB. Free memory is still 46.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:55,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.53 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 101.9 MB in the end (delta: 15.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.28 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 100.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.86 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 99.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 339.94 ms. Allocated memory is still 127.9 MB. Free memory was 99.3 MB in the beginning and 85.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2736.72 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 85.7 MB in the beginning and 46.6 MB in the end (delta: 39.1 MB). Peak memory consumption was 66.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 155.2 MB. Free memory is still 46.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * j + 4 * nlen and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 25 SDslu, 38 SDs, 0 SdLazy, 42 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div404 bol100 ite100 ukn100 eq106 hnf48 smp100 dnf100 smp100 tf104 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 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...