./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 822411a57a10ce043cb0121fce52bdc7e9506783 ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:56:55,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:55,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:55,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:55,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:55,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:55,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:55,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:55,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:55,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:55,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:55,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:55,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:55,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:55,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:55,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:55,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:55,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:55,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:55,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:55,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:55,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:55,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:55,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:55,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:55,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:55,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:55,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:55,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:55,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:55,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:55,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:55,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:55,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:55,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:55,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:55,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:55,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:55,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:55,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:55,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:55,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:56:55,654 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:55,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:55,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:55,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:55,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:55,661 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:55,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:55,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:55,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:55,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:55,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:55,664 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:55,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:55,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:55,664 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:55,665 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:55,665 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_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822411a57a10ce043cb0121fce52bdc7e9506783 [2019-10-22 08:56:55,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:55,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:55,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:55,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:55,726 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:55,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2019-10-22 08:56:55,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/data/765537cc1/b9a26e67677b4911a13c97caebc9bc28/FLAGfd0fc3fb1 [2019-10-22 08:56:56,200 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:56,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2019-10-22 08:56:56,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/data/765537cc1/b9a26e67677b4911a13c97caebc9bc28/FLAGfd0fc3fb1 [2019-10-22 08:56:56,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/bin/uautomizer/data/765537cc1/b9a26e67677b4911a13c97caebc9bc28 [2019-10-22 08:56:56,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:56,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:56,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:56,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:56,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:56,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c02b67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56, skipping insertion in model container [2019-10-22 08:56:56,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,241 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:56,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:56,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:56,582 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:56,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:56,659 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:56,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56 WrapperNode [2019-10-22 08:56:56,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:56,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:56,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:56,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:56,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:56,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:56,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:56,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:56,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... [2019-10-22 08:56:56,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:56,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:56,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:56,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:56,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_275f47e8-5299-4044-a133-60c261098141/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 08:56:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:56,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:56,967 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:56,968 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:56:56,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:56 BoogieIcfgContainer [2019-10-22 08:56:56,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:56,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:56,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:56,973 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:56,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:56,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:56" (1/3) ... [2019-10-22 08:56:56,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49bd2b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:56, skipping insertion in model container [2019-10-22 08:56:56,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:56,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:56" (2/3) ... [2019-10-22 08:56:56,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49bd2b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:56, skipping insertion in model container [2019-10-22 08:56:56,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:56,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:56" (3/3) ... [2019-10-22 08:56:56,977 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-2.i [2019-10-22 08:56:57,021 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:57,022 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:57,022 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:57,022 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:57,022 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:57,022 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:57,022 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:57,022 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:57,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:57,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:56:57,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:57,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:57,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 08:56:57,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:57,061 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:57,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:56:57,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:56:57,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:57,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:57,062 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 08:56:57,063 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:57,070 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; 13#L522true assume !(main_~length~0 < 1); 7#L522-2true assume !(main_~n~0 < 1); 8#L525-1true assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; 10#L516-3true [2019-10-22 08:56:57,070 INFO L793 eck$LassoCheckResult]: Loop: 10#L516-3true cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1; 6#L516-1true assume !!(0 != cbzero_#t~post2 % 4294967296);havoc cbzero_#t~post2;cbzero_#t~post3.base, cbzero_#t~post3.offset := cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_#t~post3.base, 1 + cbzero_#t~post3.offset;call write~int(0, cbzero_#t~post3.base, cbzero_#t~post3.offset, 1);havoc cbzero_#t~post3.base, cbzero_#t~post3.offset; 10#L516-3true [2019-10-22 08:56:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:57,076 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-10-22 08:56:57,084 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:57,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749510948] [2019-10-22 08:56:57,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,195 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:57,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2019-10-22 08:56:57,197 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:57,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208117381] [2019-10-22 08:56:57,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,218 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:57,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2019-10-22 08:56:57,222 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:57,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915131861] [2019-10-22 08:56:57,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:57,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:57,261 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:57,585 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-10-22 08:56:57,667 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:57,668 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:57,668 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:57,668 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:57,668 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:56:57,668 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:57,668 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:57,669 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:57,669 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-2.i_Iteration1_Lasso [2019-10-22 08:56:57,669 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:57,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:57,691 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 08:56:57,853 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 08:56:57,856 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 08:56:57,858 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 08:56:57,859 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 08:56:57,861 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 08:56:57,863 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 08:56:57,866 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 08:56:57,871 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 08:56:57,876 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 08:56:57,881 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 08:56:57,885 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 08:56:58,291 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:58,297 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:56:58,299 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 08:56:58,300 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:58,300 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:58,300 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:58,300 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:58,301 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:58,302 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:58,302 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:58,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:58,311 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 08:56:58,312 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:58,312 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:58,313 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:58,313 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:58,315 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:58,315 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:58,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:58,320 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 08:56:58,321 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:58,321 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 08:56:58,321 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:58,322 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:58,326 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 08:56:58,327 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:58,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:58,363 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 08:56:58,364 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:58,364 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:58,365 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:58,365 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:58,367 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:58,368 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:58,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:58,390 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 08:56:58,390 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:58,391 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:58,391 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:58,395 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:58,409 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:58,409 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:58,552 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:56:58,636 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:56:58,636 INFO L444 ModelExtractionUtils]: 32 out of 37 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 08:56:58,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:56:58,644 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:56:58,644 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:56:58,645 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cbzero_~p~0.offset, v_rep(select #length ULTIMATE.start_cbzero_~p~0.base)_1) = -1*ULTIMATE.start_cbzero_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_cbzero_~p~0.base)_1 Supporting invariants [] [2019-10-22 08:56:58,657 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-10-22 08:56:58,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:56:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:58,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:56:58,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:58,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:56:58,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:58,729 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 08:56:58,745 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-10-22 08:56:58,746 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 08:56:58,786 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 28 transitions. Complement of second has 5 states. [2019-10-22 08:56:58,787 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 [2019-10-22 08:56:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:56:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-10-22 08:56:58,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:56:58,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:58,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 08:56:58,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:58,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 08:56:58,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:58,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2019-10-22 08:56:58,797 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:58,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-10-22 08:56:58,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:56:58,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:56:58,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:56:58,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:58,802 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:58,802 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:58,802 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:58,802 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:58,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:58,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:58,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:56:58,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:58 BoogieIcfgContainer [2019-10-22 08:56:58,808 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:58,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:58,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:58,809 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:58,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:56" (3/4) ... [2019-10-22 08:56:58,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:58,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:58,814 INFO L168 Benchmark]: Toolchain (without parser) took 2587.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.1 MB in the beginning and 894.9 MB in the end (delta: 44.2 MB). Peak memory consumption was 186.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:58,815 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:58,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:58,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.19 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 08:56:58,816 INFO L168 Benchmark]: Boogie Preprocessor took 18.46 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. [2019-10-22 08:56:58,817 INFO L168 Benchmark]: RCFGBuilder took 255.46 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 08:56:58,817 INFO L168 Benchmark]: BuchiAutomizer took 1839.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.9 MB in the end (delta: 207.3 MB). Peak memory consumption was 207.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:58,817 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 1.2 GB. Free memory is still 894.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:58,820 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 432.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.19 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 18.46 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 255.46 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 1839.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.9 MB in the end (delta: 207.3 MB). Peak memory consumption was 207.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.15 ms. Allocated memory is still 1.2 GB. Free memory is still 894.9 MB. 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 * p + unknown-#length-unknown[p] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 15 SDtfs, 14 SDslu, 5 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: inital126 mio100 ax114 hnf98 lsp83 ukn93 mio100 lsp60 div158 bol100 ite100 ukn100 eq175 hnf72 smp94 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms 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...