./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.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/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/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 465ac75349cd5ac4e4a553bae7fb01de4c2c6177 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:36:19,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:36:19,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:36:19,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:36:19,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:36:19,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:36:19,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:36:19,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:36:19,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:36:19,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:36:19,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:36:19,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:36:19,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:36:19,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:36:19,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:36:19,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:36:19,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:36:19,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:36:19,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:36:19,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:36:19,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:36:19,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:36:19,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:36:19,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:36:19,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:36:19,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:36:19,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:36:19,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:36:19,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:36:19,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:36:19,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:36:19,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:36:19,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:36:19,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:36:19,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:36:19,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:36:19,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:36:19,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:36:19,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:36:19,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:36:19,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:36:19,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 23:36:19,369 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:36:19,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:36:19,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:36:19,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:36:19,371 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:36:19,371 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:36:19,371 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:36:19,371 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:36:19,371 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:36:19,372 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:36:19,372 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:36:19,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:36:19,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:36:19,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:36:19,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:36:19,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:36:19,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:36:19,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:36:19,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:36:19,373 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:36:19,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:36:19,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:36:19,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:36:19,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:36:19,374 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:36:19,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:36:19,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:36:19,375 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:36:19,376 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:36:19,376 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/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/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 -> 465ac75349cd5ac4e4a553bae7fb01de4c2c6177 [2019-11-15 23:36:19,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:36:19,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:36:19,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:36:19,432 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:36:19,432 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:36:19,433 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i [2019-11-15 23:36:19,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/data/d2653f347/8e025b7a6f0f4b0d89ba011e391900d7/FLAGbbd3edb07 [2019-11-15 23:36:19,957 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:36:19,961 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemset-alloca-2.i [2019-11-15 23:36:19,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/data/d2653f347/8e025b7a6f0f4b0d89ba011e391900d7/FLAGbbd3edb07 [2019-11-15 23:36:19,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/bin/uautomizer/data/d2653f347/8e025b7a6f0f4b0d89ba011e391900d7 [2019-11-15 23:36:19,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:36:19,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:36:19,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:36:19,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:36:20,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:36:20,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:36:19" (1/1) ... [2019-11-15 23:36:20,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc70c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20, skipping insertion in model container [2019-11-15 23:36:20,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:36:19" (1/1) ... [2019-11-15 23:36:20,015 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:36:20,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:36:20,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:36:20,480 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:36:20,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:36:20,588 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:36:20,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20 WrapperNode [2019-11-15 23:36:20,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:36:20,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:36:20,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:36:20,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:36:20,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:36:20,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:36:20,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:36:20,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:36:20,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... [2019-11-15 23:36:20,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:36:20,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:36:20,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:36:20,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:36:20,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d240ccda-fb66-4516-8aa7-ee18f2959cbd/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 [2019-11-15 23:36:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:36:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:36:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:36:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:36:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:36:21,013 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:36:21,013 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 23:36:21,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:21 BoogieIcfgContainer [2019-11-15 23:36:21,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:36:21,015 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:36:21,015 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:36:21,018 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:36:21,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:21,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:36:19" (1/3) ... [2019-11-15 23:36:21,021 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610e785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:36:21, skipping insertion in model container [2019-11-15 23:36:21,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:21,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:20" (2/3) ... [2019-11-15 23:36:21,021 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@610e785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:36:21, skipping insertion in model container [2019-11-15 23:36:21,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:21,022 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:21" (3/3) ... [2019-11-15 23:36:21,023 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemset-alloca-2.i [2019-11-15 23:36:21,065 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:36:21,065 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:36:21,065 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:36:21,065 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:36:21,065 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:36:21,065 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:36:21,066 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:36:21,066 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:36:21,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 23:36:21,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:36:21,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:21,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:21,108 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 23:36:21,108 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 23:36:21,108 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:36:21,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 23:36:21,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 23:36:21,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:21,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:21,110 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 23:36:21,110 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 23:36:21,118 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 5#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~ret8.base, main_#t~ret8.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~c~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L562true assume !(main_~length~0 < 1); 13#L562-2true assume !(main_~n~0 < 1); 6#L565-1true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;cmemset_#in~dst.base, cmemset_#in~dst.offset, cmemset_#in~c, cmemset_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemset_#res.base, cmemset_#res.offset;havoc cmemset_#t~post3.base, cmemset_#t~post3.offset, cmemset_#t~pre2, cmemset_~d~0.base, cmemset_~d~0.offset, cmemset_~dst.base, cmemset_~dst.offset, cmemset_~c, cmemset_~n;cmemset_~dst.base, cmemset_~dst.offset := cmemset_#in~dst.base, cmemset_#in~dst.offset;cmemset_~c := cmemset_#in~c;cmemset_~n := cmemset_#in~n; 11#L550true assume 0 != cmemset_~n % 4294967296;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_~dst.base, cmemset_~dst.offset; 3#L552-4true [2019-11-15 23:36:21,118 INFO L793 eck$LassoCheckResult]: Loop: 3#L552-4true cmemset_#t~post3.base, cmemset_#t~post3.offset := cmemset_~d~0.base, cmemset_~d~0.offset;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_#t~post3.base, 1 + cmemset_#t~post3.offset;call write~int(cmemset_~c, cmemset_#t~post3.base, cmemset_#t~post3.offset, 1);havoc cmemset_#t~post3.base, cmemset_#t~post3.offset; 9#L552-1true cmemset_#t~pre2 := cmemset_~n - 1;cmemset_~n := cmemset_~n - 1; 12#L552-2true assume !!(0 != cmemset_#t~pre2 % 4294967296);havoc cmemset_#t~pre2; 3#L552-4true [2019-11-15 23:36:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:21,124 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-11-15 23:36:21,130 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:21,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262766872] [2019-11-15 23:36:21,131 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,131 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,248 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:21,250 INFO L82 PathProgramCache]: Analyzing trace with hash 51706, now seen corresponding path program 1 times [2019-11-15 23:36:21,250 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:21,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295497560] [2019-11-15 23:36:21,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,250 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,279 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1298288271, now seen corresponding path program 1 times [2019-11-15 23:36:21,281 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:21,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315760014] [2019-11-15 23:36:21,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:21,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:21,338 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:21,602 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-15 23:36:21,714 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:21,715 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:21,715 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:21,715 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:21,715 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:36:21,716 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:21,716 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:21,716 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:21,716 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemset-alloca-2.i_Iteration1_Lasso [2019-11-15 23:36:21,716 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:21,716 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:21,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:21,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:21,978 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-15 23:36:22,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:22,497 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-11-15 23:36:22,904 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:22,913 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:36:22,915 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 [2019-11-15 23:36:22,917 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:22,918 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:22,919 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:22,919 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:22,919 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:22,921 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:22,922 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:22,926 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:22,927 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 [2019-11-15 23:36:22,927 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:22,928 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:22,928 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:22,928 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:22,937 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:36:22,938 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:36:22,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:22,973 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 [2019-11-15 23:36:22,974 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:22,974 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-15 23:36:22,975 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:22,975 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:22,980 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-15 23:36:22,989 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:36:23,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:23,023 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 [2019-11-15 23:36:23,023 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:23,024 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:23,024 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:23,024 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:23,027 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:36:23,027 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:36:23,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:23,042 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 [2019-11-15 23:36:23,042 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:23,043 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:23,043 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:23,043 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:23,045 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:36:23,045 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:36:23,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:23,048 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 [2019-11-15 23:36:23,049 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:23,050 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:23,050 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:23,050 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:23,058 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:36:23,058 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:36:23,241 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:36:23,335 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:36:23,335 INFO L444 ModelExtractionUtils]: 30 out of 34 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:36:23,338 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:36:23,340 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 23:36:23,341 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:36:23,342 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemset_~d~0.offset, v_rep(select #length ULTIMATE.start_cmemset_~d~0.base)_1) = -1*ULTIMATE.start_cmemset_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_cmemset_~d~0.base)_1 Supporting invariants [] [2019-11-15 23:36:23,354 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-15 23:36:23,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-15 23:36:23,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:23,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:23,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:23,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:36:23,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:23,454 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:23,456 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-15 23:36:23,497 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 32 states and 35 transitions. Complement of second has 5 states. [2019-11-15 23:36:23,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2019-11-15 23:36:23,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 23:36:23,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:23,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 23:36:23,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:23,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-15 23:36:23,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:23,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 35 transitions. [2019-11-15 23:36:23,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:36:23,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-15 23:36:23,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:36:23,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:36:23,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:36:23,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:36:23,518 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:23,518 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:23,518 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:23,518 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:36:23,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:36:23,519 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:36:23,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:36:23,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:36:23 BoogieIcfgContainer [2019-11-15 23:36:23,526 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:36:23,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:36:23,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:36:23,527 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:36:23,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:21" (3/4) ... [2019-11-15 23:36:23,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:36:23,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:36:23,534 INFO L168 Benchmark]: Toolchain (without parser) took 3535.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:36:23,535 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:36:23,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:23,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.73 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. [2019-11-15 23:36:23,537 INFO L168 Benchmark]: Boogie Preprocessor took 55.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:23,537 INFO L168 Benchmark]: RCFGBuilder took 307.34 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:23,538 INFO L168 Benchmark]: BuchiAutomizer took 2511.28 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: -1.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:36:23,539 INFO L168 Benchmark]: Witness Printer took 4.65 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. [2019-11-15 23:36:23,546 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 591.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.73 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 55.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 307.34 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2511.28 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: -1.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.65 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[d] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 20 SDtfs, 19 SDslu, 7 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital138 mio100 ax113 hnf98 lsp82 ukn94 mio100 lsp56 div211 bol100 ite100 ukn100 eq169 hnf64 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 6 VariablesLoop: 3 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...