./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/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 a9159a955cf189961722bfb66b0369c050bac9ac ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:10,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:10,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:10,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:10,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:10,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:10,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:10,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:10,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:10,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:10,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:10,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:10,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:10,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:10,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:10,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:10,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:10,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:10,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:10,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:10,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:10,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:10,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:10,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:10,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:10,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:10,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:10,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:10,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:10,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:10,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:10,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:10,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:10,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:10,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:10,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:10,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:10,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:10,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:10,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:10,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:10,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:10,199 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:10,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:10,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:10,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:10,200 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:10,201 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:10,201 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:10,201 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:10,201 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:10,201 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:10,201 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:10,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:10,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:10,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:10,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:10,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:10,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:10,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:10,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:10,203 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:10,203 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:10,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:10,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:10,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:10,204 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:10,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:10,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:10,204 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:10,205 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:10,205 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_1b15dba1-3442-4864-827d-83c5f96775ed/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 -> a9159a955cf189961722bfb66b0369c050bac9ac [2019-10-22 09:01:10,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:10,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:10,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:10,245 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:10,246 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:10,246 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2019-10-22 09:01:10,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/data/ac0e6f135/a3338216c5b4438085895e0e8098dd6a/FLAG5c94923a2 [2019-10-22 09:01:10,730 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:10,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2019-10-22 09:01:10,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/data/ac0e6f135/a3338216c5b4438085895e0e8098dd6a/FLAG5c94923a2 [2019-10-22 09:01:11,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/data/ac0e6f135/a3338216c5b4438085895e0e8098dd6a [2019-10-22 09:01:11,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:11,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:11,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:11,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:11,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:11,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc6694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11, skipping insertion in model container [2019-10-22 09:01:11,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,128 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:11,163 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:11,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:11,618 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:11,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:11,706 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:11,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11 WrapperNode [2019-10-22 09:01:11,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:11,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:11,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:11,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:11,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:11,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:11,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:11,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:11,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:11,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:11,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:11,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:11,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1b15dba1-3442-4864-827d-83c5f96775ed/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:12,201 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:12,202 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 09:01:12,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:12 BoogieIcfgContainer [2019-10-22 09:01:12,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:12,204 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:12,204 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:12,209 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:12,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:12,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:11" (1/3) ... [2019-10-22 09:01:12,211 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@455bf526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:12, skipping insertion in model container [2019-10-22 09:01:12,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:12,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11" (2/3) ... [2019-10-22 09:01:12,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@455bf526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:12, skipping insertion in model container [2019-10-22 09:01:12,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:12,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:12" (3/3) ... [2019-10-22 09:01:12,215 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-1.i [2019-10-22 09:01:12,272 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:12,272 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:12,272 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:12,273 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:12,273 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:12,273 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:12,273 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:12,273 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:12,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 09:01:12,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:12,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:12,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:12,310 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:12,310 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:12,311 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:12,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 09:01:12,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:12,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:12,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:12,312 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:12,312 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:12,320 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; 7#L557true assume !(main_~length~0 < 1); 11#L557-2true assume !(main_~n~0 < 1); 13#L560-1true assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; 4#L551-3true [2019-10-22 09:01:12,321 INFO L793 eck$LassoCheckResult]: Loop: 4#L551-3true cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1; 10#L551-1true 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; 4#L551-3true [2019-10-22 09:01:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:12,327 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-10-22 09:01:12,336 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:12,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697079652] [2019-10-22 09:01:12,336 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,336 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,458 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2019-10-22 09:01:12,459 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:12,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278941545] [2019-10-22 09:01:12,460 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,460 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,480 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:12,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2019-10-22 09:01:12,482 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:12,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559713818] [2019-10-22 09:01:12,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:12,521 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:12,755 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-10-22 09:01:12,836 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:12,837 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:12,837 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:12,837 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:12,837 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:12,838 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:12,838 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:12,838 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:12,838 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-1.i_Iteration1_Lasso [2019-10-22 09:01:12,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:12,839 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:12,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,050 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-10-22 09:01:13,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:13,637 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:13,642 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:13,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:13,646 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:13,647 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:13,647 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:13,648 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:13,648 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:13,650 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:13,650 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:13,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:13,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:13,662 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:13,664 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:13,665 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:13,665 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:13,667 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:13,667 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:13,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:13,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:13,684 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:13,684 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 09:01:13,685 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:13,685 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:13,692 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 09:01:13,694 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:13,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:13,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:13,759 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:13,760 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:13,760 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:13,760 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:13,763 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:13,763 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:13,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:13,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 09:01:13,799 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:13,799 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:13,799 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:13,799 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:13,804 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:13,804 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:13,933 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:14,023 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 09:01:14,030 INFO L444 ModelExtractionUtils]: 32 out of 37 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 09:01:14,032 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:14,034 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:01:14,034 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:14,035 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 09:01:14,050 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-10-22 09:01:14,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 09:01:14,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:14,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:14,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:14,141 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 09:01:14,143 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 09:01:14,180 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 09:01:14,183 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 09:01:14,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-10-22 09:01:14,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 09:01:14,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:14,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 09:01:14,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:14,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 09:01:14,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:14,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2019-10-22 09:01:14,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:14,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-10-22 09:01:14,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:14,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:14,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:14,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:14,202 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:14,202 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:14,202 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:14,202 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:14,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:14,203 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:14,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:14,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:14 BoogieIcfgContainer [2019-10-22 09:01:14,209 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:14,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:14,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:14,210 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:14,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:12" (3/4) ... [2019-10-22 09:01:14,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:14,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:14,217 INFO L168 Benchmark]: Toolchain (without parser) took 3106.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 942.0 MB in the beginning and 926.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 187.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,218 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:14,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 940.6 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,222 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,222 INFO L168 Benchmark]: RCFGBuilder took 436.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,223 INFO L168 Benchmark]: BuchiAutomizer took 2005.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.0 MB in the end (delta: 203.1 MB). Peak memory consumption was 203.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:14,223 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 1.2 GB. Free memory is still 926.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:14,226 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 595.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 940.6 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 436.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2005.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.0 MB in the end (delta: 203.1 MB). Peak memory consumption was 203.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.49 ms. Allocated memory is still 1.2 GB. Free memory is still 926.3 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 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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: 76ms 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...