./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b23842887bb783492886a6eb7113cc470799b443 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:02,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:02,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:02,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:02,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:02,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:02,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:02,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:02,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:02,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:02,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:02,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:02,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:02,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:02,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:02,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:02,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:02,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:02,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:02,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:02,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:02,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:02,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:02,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:02,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:02,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:02,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:02,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:02,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:02,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:02,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:02,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:02,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:02,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:02,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:02,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:02,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:02,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:02,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:02,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:02,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:02,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:02:02,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:02,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:02,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:02,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:02,296 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:02,297 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:02,297 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:02,297 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:02,297 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:02,297 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:02,297 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:02,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:02,298 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:02,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:02,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:02,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:02,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:02,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:02,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:02,300 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:02,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:02,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:02,301 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:02,302 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:02,302 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b23842887bb783492886a6eb7113cc470799b443 [2019-10-22 09:02:02,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:02,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:02,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:02,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:02,354 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:02,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2019-10-22 09:02:02,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/data/f0edb7f2c/385d8b3bef934387a66fb8b100bb7cf0/FLAG8c61caa7c [2019-10-22 09:02:02,817 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:02,817 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2019-10-22 09:02:02,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/data/f0edb7f2c/385d8b3bef934387a66fb8b100bb7cf0/FLAG8c61caa7c [2019-10-22 09:02:02,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/bin/uautomizer/data/f0edb7f2c/385d8b3bef934387a66fb8b100bb7cf0 [2019-10-22 09:02:02,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:02,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:02,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:02,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:02,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:02,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:02" (1/1) ... [2019-10-22 09:02:02,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5127a07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:02, skipping insertion in model container [2019-10-22 09:02:02,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:02" (1/1) ... [2019-10-22 09:02:02,854 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:02,868 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:03,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:03,078 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:03,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:03,101 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:03,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03 WrapperNode [2019-10-22 09:02:03,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:03,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:03,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:03,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:03,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:03,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:03,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... [2019-10-22 09:02:03,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:03,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:03,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:03,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:03,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f58066d7-a1a7-4326-b8b2-b0fa97315952/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 [2019-10-22 09:02:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:02:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-22 09:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-22 09:02:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-10-22 09:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-10-22 09:02:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:03,435 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:03,435 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:02:03,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03 BoogieIcfgContainer [2019-10-22 09:02:03,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:03,437 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:03,437 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:03,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:03,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:02" (1/3) ... [2019-10-22 09:02:03,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31466d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:03, skipping insertion in model container [2019-10-22 09:02:03,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:03" (2/3) ... [2019-10-22 09:02:03,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31466d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:03, skipping insertion in model container [2019-10-22 09:02:03,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:03,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03" (3/3) ... [2019-10-22 09:02:03,446 INFO L371 chiAutomizerObserver]: Analyzing ICFG mutual_simple.i [2019-10-22 09:02:03,494 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:03,495 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:03,495 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:03,495 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:03,495 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:03,495 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:03,495 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:03,495 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:03,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-10-22 09:02:03,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:02:03,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:03,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:03,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:03,549 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:03,549 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:03,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-10-22 09:02:03,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:02:03,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:03,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:03,552 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:02:03,552 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:03,560 INFO L791 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet6; 3#L37true call f(main_~p1~0.base, main_~p1~0.offset);< 14#fENTRYtrue [2019-10-22 09:02:03,561 INFO L793 eck$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 [2019-10-22 09:02:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash 43767, now seen corresponding path program 1 times [2019-10-22 09:02:03,575 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707369933] [2019-10-22 09:02:03,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,698 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,699 INFO L82 PathProgramCache]: Analyzing trace with hash 891860259, now seen corresponding path program 1 times [2019-10-22 09:02:03,699 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970203768] [2019-10-22 09:02:03,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,737 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:03,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:03,741 INFO L82 PathProgramCache]: Analyzing trace with hash -306262119, now seen corresponding path program 1 times [2019-10-22 09:02:03,742 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:03,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620953724] [2019-10-22 09:02:03,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:03,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:03,814 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:04,534 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:02:04,535 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:02:04,535 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:02:04,535 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:02:04,537 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:02:04,538 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:04,538 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:02:04,538 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:02:04,538 INFO L131 ssoRankerPreferences]: Filename of dumped script: mutual_simple.i_Iteration1_Lasso [2019-10-22 09:02:04,538 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:02:04,539 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:02:04,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:02:04,901 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:02:04,906 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:02:04,909 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 [2019-10-22 09:02:04,911 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,911 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:04,913 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,913 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,914 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,916 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:04,916 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:04,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:02:04,921 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,921 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:02:04,921 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,921 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,922 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,922 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:02:04,922 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:02:04,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,936 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 [2019-10-22 09:02:04,937 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,937 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,937 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,937 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,940 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:04,940 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:04,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,962 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 [2019-10-22 09:02:04,962 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,963 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:04,963 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,963 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,968 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:04,969 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:04,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:04,976 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 [2019-10-22 09:02:04,976 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:04,977 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 09:02:04,977 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:04,977 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:04,979 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 09:02:04,982 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:05,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:02:05,002 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 [2019-10-22 09:02:05,003 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:02:05,003 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:02:05,003 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:02:05,004 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:02:05,011 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:02:05,011 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:02:05,053 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:02:05,076 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:02:05,079 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:02:05,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:02:05,083 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:02:05,083 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:02:05,085 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 [] [2019-10-22 09:02:05,098 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-10-22 09:02:05,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 09:02:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:05,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-22 09:02:05,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:05,242 INFO L375 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 25 treesize of output 13 [2019-10-22 09:02:05,246 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:02:05,249 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:02:05,250 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:02:05,250 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2019-10-22 09:02:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:05,338 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2019-10-22 09:02:05,339 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 7 states. [2019-10-22 09:02:05,592 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 7 states. Result 47 states and 53 transitions. Complement of second has 22 states. [2019-10-22 09:02:05,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-10-22 09:02:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 09:02:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2019-10-22 09:02:05,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2019-10-22 09:02:05,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2019-10-22 09:02:05,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2019-10-22 09:02:05,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:02:05,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 53 transitions. [2019-10-22 09:02:05,607 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:05,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 0 states and 0 transitions. [2019-10-22 09:02:05,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:02:05,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:02:05,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:02:05,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:05,613 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:05,613 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:05,613 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:05,613 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:05,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:05,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:02:05,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:02:05,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:05 BoogieIcfgContainer [2019-10-22 09:02:05,621 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:05,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:05,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:05,622 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:05,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:03" (3/4) ... [2019-10-22 09:02:05,626 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:02:05,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:05,628 INFO L168 Benchmark]: Toolchain (without parser) took 2789.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.0 MB in the beginning and 903.9 MB in the end (delta: 42.1 MB). Peak memory consumption was 186.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:05,629 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:05,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:05,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:05,630 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:05,631 INFO L168 Benchmark]: RCFGBuilder took 261.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:05,632 INFO L168 Benchmark]: BuchiAutomizer took 2183.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.3 MB in the end (delta: 206.0 MB). Peak memory consumption was 206.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:05,632 INFO L168 Benchmark]: Witness Printer took 5.29 ms. Allocated memory is still 1.2 GB. Free memory was 909.3 MB in the beginning and 903.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:05,636 INFO L335 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 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2183.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.3 MB in the end (delta: 206.0 MB). Peak memory consumption was 206.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.29 ms. Allocated memory is still 1.2 GB. Free memory was 909.3 MB in the beginning and 903.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 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 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 11 SDtfs, 11 SDslu, 20 SDs, 0 SdLazy, 64 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital110 mio100 ax100 hnf100 lsp94 ukn63 mio100 lsp40 div100 bol100 ite100 ukn100 eq144 hnf92 smp91 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms 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...