./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b23842887bb783492886a6eb7113cc470799b443 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:25:40,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:25:40,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:25:40,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:25:40,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:25:40,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:25:40,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:25:40,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:25:40,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:25:40,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:25:40,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:25:40,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:25:40,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:25:40,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:25:40,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:25:40,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:25:40,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:25:40,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:25:40,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:25:40,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:25:40,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:25:40,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:25:40,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:25:40,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:25:40,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:25:40,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:25:40,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:25:40,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:25:40,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:25:40,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:25:40,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:25:40,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:25:40,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:25:40,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:25:40,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:25:40,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:25:40,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:25:40,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:25:40,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:25:40,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:25:40,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:25:40,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:25:40,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:25:40,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:25:40,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:25:40,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:25:40,967 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:25:40,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:25:40,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:25:40,968 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:25:40,968 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:25:40,968 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:25:40,968 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:25:40,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:25:40,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:25:40,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:25:40,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:25:40,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:25:40,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:25:40,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:25:40,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:25:40,970 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:25:40,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:25:40,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:25:40,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:25:40,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:25:40,971 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:25:40,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:25:40,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:25:40,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:25:40,972 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:25:40,973 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:25:40,973 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b23842887bb783492886a6eb7113cc470799b443 [2020-10-26 04:25:41,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:25:41,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:25:41,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:25:41,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:25:41,386 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:25:41,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2020-10-26 04:25:41,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bae33a5d1/c24a935cda5844378f375e975216ea7a/FLAG8ed83f56e [2020-10-26 04:25:42,107 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:25:42,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2020-10-26 04:25:42,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bae33a5d1/c24a935cda5844378f375e975216ea7a/FLAG8ed83f56e [2020-10-26 04:25:42,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bae33a5d1/c24a935cda5844378f375e975216ea7a [2020-10-26 04:25:42,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:25:42,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:25:42,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:25:42,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:25:42,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:25:42,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614918d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42, skipping insertion in model container [2020-10-26 04:25:42,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:25:42,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:25:42,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:25:42,682 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:25:42,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:25:42,725 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:25:42,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42 WrapperNode [2020-10-26 04:25:42,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:25:42,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:25:42,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:25:42,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:25:42,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:25:42,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:25:42,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:25:42,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:25:42,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... [2020-10-26 04:25:42,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:25:42,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:25:42,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:25:42,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:25:42,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:25:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:25:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 04:25:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-26 04:25:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-26 04:25:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-26 04:25:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-26 04:25:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:25:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:25:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:25:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:25:43,082 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:25:43,083 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-26 04:25:43,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:25:43 BoogieIcfgContainer [2020-10-26 04:25:43,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:25:43,086 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:25:43,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:25:43,091 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:25:43,092 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:25:43,093 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:25:42" (1/3) ... [2020-10-26 04:25:43,094 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dbe765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:25:43, skipping insertion in model container [2020-10-26 04:25:43,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:25:43,095 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:25:42" (2/3) ... [2020-10-26 04:25:43,095 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dbe765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:25:43, skipping insertion in model container [2020-10-26 04:25:43,095 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:25:43,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:25:43" (3/3) ... [2020-10-26 04:25:43,098 INFO L373 chiAutomizerObserver]: Analyzing ICFG mutual_simple.i [2020-10-26 04:25:43,200 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:25:43,201 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:25:43,201 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:25:43,201 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:25:43,202 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:25:43,202 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:25:43,202 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:25:43,202 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:25:43,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-26 04:25:43,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 04:25:43,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:25:43,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:25:43,284 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:25:43,284 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:25:43,284 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:25:43,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-26 04:25:43,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 04:25:43,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:25:43,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:25:43,287 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:25:43,288 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:25:43,295 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet6; 3#L37true call f(main_~p1~0.base, main_~p1~0.offset);< 14#fENTRYtrue [2020-10-26 04:25:43,295 INFO L796 eck$LassoCheckResult]: Loop: 14#fENTRYtrue ~q.base, ~q.offset := #in~q.base, #in~q.offset;call #t~mem1 := read~int(~q.base, ~q.offset, 4); 16#L13true assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem2 := read~int(~q.base, ~q.offset, 4);#t~post3 := #t~mem2;call write~int(#t~post3 - 1, ~q.base, ~q.offset, 4);havoc #t~mem2;havoc #t~post3; 10#L17true call g(~q.base, ~q.offset);< 13#gENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4); 4#L22true assume !(#t~mem4 < 0);havoc #t~mem4; 17#L25true call f(~p.base, ~p.offset);< 14#fENTRYtrue [2020-10-26 04:25:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:25:43,302 INFO L82 PathProgramCache]: Analyzing trace with hash 43767, now seen corresponding path program 1 times [2020-10-26 04:25:43,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:25:43,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801724509] [2020-10-26 04:25:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:25:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:25:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:25:43,539 INFO L82 PathProgramCache]: Analyzing trace with hash 891860259, now seen corresponding path program 1 times [2020-10-26 04:25:43,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:25:43,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069980659] [2020-10-26 04:25:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:25:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:25:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:25:43,598 INFO L82 PathProgramCache]: Analyzing trace with hash -306262119, now seen corresponding path program 1 times [2020-10-26 04:25:43,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:25:43,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191059435] [2020-10-26 04:25:43,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:25:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:25:43,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:25:43,663 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:25:43,805 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-26 04:25:44,309 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-26 04:25:44,471 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-10-26 04:25:44,661 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:25:44,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:25:44,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:25:44,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:25:44,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:25:44,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:44,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:25:44,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:25:44,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: mutual_simple.i_Iteration1_Lasso [2020-10-26 04:25:44,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:25:44,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:25:44,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:44,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:25:45,162 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:25:45,168 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,182 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 [2020-10-26 04:25:45,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:25:45,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:25:45,190 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 [2020-10-26 04:25:45,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,239 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 [2020-10-26 04:25:45,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:25:45,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:25:45,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,284 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 [2020-10-26 04:25:45,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:25:45,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:25:45,288 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 [2020-10-26 04:25:45,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,330 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 [2020-10-26 04:25:45,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:25:45,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:25:45,381 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 [2020-10-26 04:25:45,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:25:45,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:25:45,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,439 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 [2020-10-26 04:25:45,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:25:45,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,488 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 [2020-10-26 04:25:45,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,491 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-26 04:25:45,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:25:45,496 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 04:25:45,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,541 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 [2020-10-26 04:25:45,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:25:45,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:25:45,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:25:45,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:25:45,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:25:45,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:25:45,605 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-26 04:25:45,605 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:25:45,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:25:45,635 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:25:45,635 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:25:45,636 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int f_#in~q.base) f_#in~q.offset)_1) = 1*v_rep(select (select #memory_int f_#in~q.base) f_#in~q.offset)_1 Supporting invariants [] [2020-10-26 04:25:45,680 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-10-26 04:25:45,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-26 04:25:45,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:25:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:25:45,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:25:45,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:25:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:25:45,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 29 conjunts are in the unsatisfiable core [2020-10-26 04:25:45,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:25:45,871 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2020-10-26 04:25:45,873 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 04:25:45,879 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 04:25:45,880 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 04:25:45,880 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:19 [2020-10-26 04:25:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:25:45,974 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 [2020-10-26 04:25:45,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2020-10-26 04:25:46,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 47 states and 53 transitions. Complement of second has 24 states. [2020-10-26 04:25:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2020-10-26 04:25:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:25:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-10-26 04:25:46,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2020-10-26 04:25:46,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:25:46,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2020-10-26 04:25:46,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:25:46,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2020-10-26 04:25:46,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:25:46,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 53 transitions. [2020-10-26 04:25:46,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:25:46,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 0 states and 0 transitions. [2020-10-26 04:25:46,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:25:46,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:25:46,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:25:46,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:25:46,260 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:25:46,260 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:25:46,260 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:25:46,261 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:25:46,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:25:46,261 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:25:46,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:25:46,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:25:46 BoogieIcfgContainer [2020-10-26 04:25:46,272 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:25:46,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:25:46,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:25:46,273 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:25:46,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:25:43" (3/4) ... [2020-10-26 04:25:46,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:25:46,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:25:46,279 INFO L168 Benchmark]: Toolchain (without parser) took 3820.28 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 37.2 MB in the beginning and 60.7 MB in the end (delta: -23.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:25:46,280 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory is still 21.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:25:46,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.24 ms. Allocated memory is still 60.8 MB. Free memory was 36.5 MB in the beginning and 44.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:25:46,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.91 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 43.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:25:46,283 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 42.7 MB in the end (delta: 848.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:25:46,284 INFO L168 Benchmark]: RCFGBuilder took 284.57 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 31.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:25:46,285 INFO L168 Benchmark]: BuchiAutomizer took 3185.87 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 31.6 MB in the beginning and 61.5 MB in the end (delta: -29.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:25:46,286 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.7 MB in the end (delta: 814.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:25:46,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory is still 21.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.24 ms. Allocated memory is still 60.8 MB. Free memory was 36.5 MB in the beginning and 44.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.91 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 43.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.81 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 42.7 MB in the end (delta: 848.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 284.57 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 31.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3185.87 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 31.6 MB in the beginning and 61.5 MB in the end (delta: -29.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.90 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.7 MB in the end (delta: 814.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 unknown-#memory_int-unknown[q][q] and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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: 12 SDtfs, 12 SDslu, 22 SDs, 0 SdLazy, 58 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital107 mio100 ax100 hnf99 lsp94 ukn63 mio100 lsp34 div100 bol100 ite100 ukn100 eq172 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...