./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/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 0.1.25-f470102 [2019-12-07 14:06:35,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:06:35,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:06:35,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:06:35,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:06:35,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:06:35,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:06:35,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:06:35,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:06:35,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:06:35,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:06:35,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:06:35,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:06:35,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:06:35,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:06:35,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:06:35,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:06:35,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:06:35,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:06:35,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:06:35,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:06:35,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:06:35,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:06:35,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:06:35,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:06:35,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:06:35,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:06:35,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:06:35,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:06:35,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:06:35,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:06:35,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:06:35,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:06:35,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:06:35,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:06:35,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:06:35,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:06:35,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:06:35,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:06:35,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:06:35,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:06:35,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 14:06:35,307 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:06:35,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:06:35,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:06:35,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:06:35,308 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:06:35,308 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:06:35,309 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:06:35,309 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:06:35,309 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:06:35,309 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:06:35,309 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:06:35,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:06:35,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:06:35,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:06:35,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:06:35,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:06:35,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:06:35,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:06:35,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:06:35,311 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:06:35,311 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:06:35,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:06:35,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:06:35,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:06:35,312 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:06:35,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:06:35,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:06:35,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:06:35,313 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:06:35,313 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:06:35,314 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/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 [2019-12-07 14:06:35,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:06:35,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:06:35,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:06:35,441 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:06:35,441 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:06:35,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2019-12-07 14:06:35,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/data/2bbc746bd/2d294b11a84f495a908281d21d596fe3/FLAGce7156600 [2019-12-07 14:06:35,807 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:06:35,807 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2019-12-07 14:06:35,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/data/2bbc746bd/2d294b11a84f495a908281d21d596fe3/FLAGce7156600 [2019-12-07 14:06:35,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/data/2bbc746bd/2d294b11a84f495a908281d21d596fe3 [2019-12-07 14:06:35,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:06:35,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:06:35,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:06:35,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:06:35,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:06:35,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:06:35" (1/1) ... [2019-12-07 14:06:35,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120650b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:35, skipping insertion in model container [2019-12-07 14:06:35,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:06:35" (1/1) ... [2019-12-07 14:06:35,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:06:35,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:06:36,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:06:36,086 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:06:36,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:06:36,140 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:06:36,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36 WrapperNode [2019-12-07 14:06:36,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:06:36,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:06:36,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:06:36,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:06:36,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:06:36,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:06:36,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:06:36,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:06:36,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... [2019-12-07 14:06:36,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:06:36,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:06:36,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:06:36,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:06:36,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/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 [2019-12-07 14:06:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:06:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:06:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:06:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:06:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:06:36,357 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:06:36,358 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:06:36,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:36 BoogieIcfgContainer [2019-12-07 14:06:36,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:06:36,359 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:06:36,359 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:06:36,361 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:06:36,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:06:36,363 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:06:35" (1/3) ... [2019-12-07 14:06:36,364 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1220e9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:06:36, skipping insertion in model container [2019-12-07 14:06:36,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:06:36,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:36" (2/3) ... [2019-12-07 14:06:36,364 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1220e9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:06:36, skipping insertion in model container [2019-12-07 14:06:36,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:06:36,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:36" (3/3) ... [2019-12-07 14:06:36,365 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-1.i [2019-12-07 14:06:36,394 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:06:36,394 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:06:36,394 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:06:36,394 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:06:36,394 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:06:36,394 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:06:36,394 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:06:36,394 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:06:36,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 14:06:36,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:06:36,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:06:36,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:06:36,421 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:06:36,421 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:06:36,421 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:06:36,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 14:06:36,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:06:36,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:06:36,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:06:36,422 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:06:36,422 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:06:36,427 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; 7#L557true assume !(main_~length~0 < 1); 11#L557-2true assume !(main_~n~0 < 1); 13#L560-1true assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; 4#L551-3true [2019-12-07 14:06:36,428 INFO L796 eck$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 [2019-12-07 14:06:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:36,431 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-12-07 14:06:36,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:36,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409456591] [2019-12-07 14:06:36,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:06:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:36,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2019-12-07 14:06:36,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:36,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333734346] [2019-12-07 14:06:36,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,543 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:06:36,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:36,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2019-12-07 14:06:36,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:36,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832381412] [2019-12-07 14:06:36,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:06:36,573 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:06:36,742 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-12-07 14:06:36,797 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:06:36,797 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:06:36,797 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:06:36,797 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:06:36,797 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:06:36,798 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:36,798 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:06:36,798 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:06:36,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-1.i_Iteration1_Lasso [2019-12-07 14:06:36,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:06:36,798 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:06:36,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:36,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:06:37,226 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:06:37,231 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,235 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 [2019-12-07 14:06:37,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:06:37,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:06:37,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:06:37,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:06:37,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:06:37,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:06:37,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:06:37,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,247 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 [2019-12-07 14:06:37,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:06:37,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:06:37,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:06:37,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:06:37,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:06:37,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:06:37,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,258 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 [2019-12-07 14:06:37,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:06:37,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:06:37,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:06:37,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:06:37,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:06:37,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:06:37,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,277 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 [2019-12-07 14:06:37,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:06:37,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:06:37,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:06:37,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:06:37,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:06:37,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:06:37,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,295 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 [2019-12-07 14:06:37,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:06:37,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:06:37,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:06:37,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:06:37,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:06:37,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:06:37,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:06:37,378 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2019-12-07 14:06:37,378 INFO L444 ModelExtractionUtils]: 9 out of 37 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d7a4e42-d968-4eb4-b5a4-c78ff5d3a5ed/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:06:37,382 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:06:37,389 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:06:37,389 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:06:37,390 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cbzero_~length, v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1) = 2*ULTIMATE.start_cbzero_~length + 3*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 Supporting invariants [2*ULTIMATE.start_cbzero_~length + 3*ULTIMATE.start_cbzero_~p~0.offset >= 0] [2019-12-07 14:06:37,411 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 14:06:37,421 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:06:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:37,467 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2019-12-07 14:06:37,468 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:06:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:37,493 WARN L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:06:37,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:06:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:06:37,522 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 14:06:37,523 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2019-12-07 14:06:37,580 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 21 states and 25 transitions. Complement of second has 7 states. [2019-12-07 14:06:37,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:06:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:06:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-12-07 14:06:37,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 14:06:37,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:06:37,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:06:37,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:06:37,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 14:06:37,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:06:37,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2019-12-07 14:06:37,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:06:37,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-12-07 14:06:37,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:06:37,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:06:37,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:06:37,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:06:37,588 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:06:37,588 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:06:37,589 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:06:37,589 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:06:37,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:06:37,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:06:37,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:06:37,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:06:37 BoogieIcfgContainer [2019-12-07 14:06:37,593 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:06:37,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:06:37,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:06:37,593 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:06:37,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:36" (3/4) ... [2019-12-07 14:06:37,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:06:37,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:06:37,597 INFO L168 Benchmark]: Toolchain (without parser) took 1767.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,598 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:37,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,599 INFO L168 Benchmark]: Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,600 INFO L168 Benchmark]: RCFGBuilder took 174.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:37,600 INFO L168 Benchmark]: BuchiAutomizer took 1234.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -18.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,601 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:37,603 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -134.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1234.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -18.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * length + 3 * unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: 9 SDtfs, 13 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax114 hnf98 lsp82 ukn93 mio100 lsp61 div158 bol100 ite100 ukn100 eq175 hnf72 smp94 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...