./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 94f95b6ef0a3c8650bd30cb1958ada590298bd1c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:58:02,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:02,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:02,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:02,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:02,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:02,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:02,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:02,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:02,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:02,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:02,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:02,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:02,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:02,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:02,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:02,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:02,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:02,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:02,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:02,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:02,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:02,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:02,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:02,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:02,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:02,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:02,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:02,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:02,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:02,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:02,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:02,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:02,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:02,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:02,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:02,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:02,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:02,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:02,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:02,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:02,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:58:02,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:02,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:02,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:02,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:02,260 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:02,260 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:58:02,260 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:58:02,260 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:58:02,260 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:58:02,261 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:58:02,261 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:58:02,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:02,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:58:02,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:58:02,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:02,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:58:02,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:58:02,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:58:02,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:02,263 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:58:02,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:02,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:58:02,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:02,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:02,264 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:58:02,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:02,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:58:02,265 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:58:02,267 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:58:02,267 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_320741d2-5eae-4547-bbd9-aac595c251b6/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 -> 94f95b6ef0a3c8650bd30cb1958ada590298bd1c [2019-11-25 08:58:02,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:02,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:02,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:02,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:02,455 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:02,456 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-25 08:58:02,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/data/081f1fc97/21bbf249fddf46d29aac499e8461f96e/FLAG316095f85 [2019-11-25 08:58:02,948 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:02,948 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-25 08:58:02,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/data/081f1fc97/21bbf249fddf46d29aac499e8461f96e/FLAG316095f85 [2019-11-25 08:58:02,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/data/081f1fc97/21bbf249fddf46d29aac499e8461f96e [2019-11-25 08:58:02,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:02,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:02,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:02,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:02,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:02,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:02" (1/1) ... [2019-11-25 08:58:02,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d379a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:02, skipping insertion in model container [2019-11-25 08:58:02,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:02" (1/1) ... [2019-11-25 08:58:02,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:03,022 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:03,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:03,403 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:03,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:03,535 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:03,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03 WrapperNode [2019-11-25 08:58:03,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:03,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:03,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:03,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:03,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:03,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:03,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:03,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:03,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:03,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:03,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:03,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:03,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:58:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:58:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:58:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:58:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:03,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:04,024 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:04,024 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:58:04,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04 BoogieIcfgContainer [2019-11-25 08:58:04,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:04,026 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:58:04,026 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:58:04,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:58:04,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:58:02" (1/3) ... [2019-11-25 08:58:04,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26569f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:04, skipping insertion in model container [2019-11-25 08:58:04,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (2/3) ... [2019-11-25 08:58:04,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26569f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:04, skipping insertion in model container [2019-11-25 08:58:04,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04" (3/3) ... [2019-11-25 08:58:04,035 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2019-11-25 08:58:04,074 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:58:04,074 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:58:04,074 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:58:04,074 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:04,075 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:04,075 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:58:04,075 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:04,075 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:58:04,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-25 08:58:04,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-25 08:58:04,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:04,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:04,114 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:58:04,114 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:58:04,115 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:58:04,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-25 08:58:04,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-25 08:58:04,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:04,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:04,117 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:58:04,117 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:58:04,124 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 17#L367true assume !(main_~length~0 < 1); 3#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 12#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 15#L371-3true [2019-11-25 08:58:04,125 INFO L796 eck$LassoCheckResult]: Loop: 15#L371-3true assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 13#L371-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 15#L371-3true [2019-11-25 08:58:04,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,130 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-25 08:58:04,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648096322] [2019-11-25 08:58:04,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2019-11-25 08:58:04,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103554994] [2019-11-25 08:58:04,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,284 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2019-11-25 08:58:04,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691531150] [2019-11-25 08:58:04,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,597 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-11-25 08:58:04,667 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:04,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:04,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:04,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:04,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:04,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:04,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:04,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:04,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2019-11-25 08:58:04,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:04,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:04,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:04,978 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-11-25 08:58:05,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:05,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:05,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:05,312 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:05,319 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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) [2019-11-25 08:58:05,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 [2019-11-25 08:58:05,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 [2019-11-25 08:58:05,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 [2019-11-25 08:58:05,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 [2019-11-25 08:58:05,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:05,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:05,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/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 [2019-11-25 08:58:05,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:05,455 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 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:05,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:05,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:05,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:05,471 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 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:05,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:05,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:05,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:05,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:05,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:05,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:05,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:05,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:05,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:05,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:05,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:05,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:05,586 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-25 08:58:05,586 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:05,606 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-25 08:58:05,607 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:05,607 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1) = -4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1 Supporting invariants [1*ULTIMATE.start_main_~arr~0.offset >= 0] [2019-11-25 08:58:05,643 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-25 08:58:05,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:58:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:05,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:58:05,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:05,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:58:05,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:05,798 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 [2019-11-25 08:58:05,799 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2019-11-25 08:58:05,892 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 36 states and 51 transitions. Complement of second has 9 states. [2019-11-25 08:58:05,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:58:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2019-11-25 08:58:05,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:58:05,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:05,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-25 08:58:05,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:05,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-25 08:58:05,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:05,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2019-11-25 08:58:05,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:58:05,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 13 states and 17 transitions. [2019-11-25 08:58:05,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:58:05,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-25 08:58:05,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-25 08:58:05,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:05,912 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-25 08:58:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-25 08:58:05,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-25 08:58:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-25 08:58:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-25 08:58:05,939 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-25 08:58:05,939 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-25 08:58:05,939 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:58:05,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-25 08:58:05,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-25 08:58:05,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:05,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:05,943 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:05,943 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-25 08:58:05,943 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 130#L367 assume !(main_~length~0 < 1); 136#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 137#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 140#L371-3 assume !(main_~i~0 < main_~length~0); 141#L371-4 main_~j~0 := 0; 134#L374-3 [2019-11-25 08:58:05,944 INFO L796 eck$LassoCheckResult]: Loop: 134#L374-3 assume !!(main_~j~0 < main_~length~0); 131#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 132#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 133#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 134#L374-3 [2019-11-25 08:58:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:05,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2019-11-25 08:58:05,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:05,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73353519] [2019-11-25 08:58:05,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:06,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2019-11-25 08:58:06,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:06,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037686349] [2019-11-25 08:58:06,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,017 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2019-11-25 08:58:06,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:06,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134137825] [2019-11-25 08:58:06,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:06,222 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-11-25 08:58:06,269 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:06,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:06,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:06,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:06,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:06,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:06,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:06,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2019-11-25 08:58:06,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:06,270 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:06,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,435 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-11-25 08:58:06,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:06,718 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:06,718 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:06,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:06,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:06,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:06,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:06,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:06,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:06,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:06,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:06,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:06,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:06,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:06,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:06,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:06,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:06,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:06,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:06,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:06,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:06,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:06,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:06,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:06,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:06,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:06,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:06,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:06,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:06,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:06,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:06,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:06,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:06,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:06,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:06,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:06,856 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-25 08:58:06,856 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:06,863 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:06,865 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:58:06,866 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:06,866 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-25 08:58:06,882 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-25 08:58:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:06,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:06,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:06,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:06,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:06,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:06,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-25 08:58:06,945 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 18 states and 24 transitions. Complement of second has 4 states. [2019-11-25 08:58:06,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:06,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2019-11-25 08:58:06,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-25 08:58:06,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:06,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-25 08:58:06,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:06,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2019-11-25 08:58:06,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:06,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-25 08:58:06,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:06,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 23 transitions. [2019-11-25 08:58:06,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:58:06,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-25 08:58:06,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-25 08:58:06,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:06,950 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-25 08:58:06,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-25 08:58:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-25 08:58:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:58:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-11-25 08:58:06,952 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-25 08:58:06,952 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-25 08:58:06,952 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:58:06,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-11-25 08:58:06,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:06,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:06,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:06,954 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:06,954 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:58:06,954 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 225#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 226#L367 assume !(main_~length~0 < 1); 235#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 236#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 237#L371-3 assume !(main_~i~0 < main_~length~0); 240#L371-4 main_~j~0 := 0; 233#L374-3 assume !!(main_~j~0 < main_~length~0); 227#L375-3 [2019-11-25 08:58:06,955 INFO L796 eck$LassoCheckResult]: Loop: 227#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 228#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem211;havoc main_#t~post212; 227#L375-3 [2019-11-25 08:58:06,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,955 INFO L82 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2019-11-25 08:58:06,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:06,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142450995] [2019-11-25 08:58:06,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2019-11-25 08:58:06,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:06,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629914358] [2019-11-25 08:58:06,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:06,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:06,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:06,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2019-11-25 08:58:06,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:06,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659748115] [2019-11-25 08:58:06,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:07,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659748115] [2019-11-25 08:58:07,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:58:07,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:58:07,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799587500] [2019-11-25 08:58:07,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:07,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:58:07,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:58:07,185 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-11-25 08:58:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:07,255 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-25 08:58:07,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:58:07,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-11-25 08:58:07,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:07,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2019-11-25 08:58:07,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-25 08:58:07,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-25 08:58:07,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-11-25 08:58:07,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:07,259 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-25 08:58:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-11-25 08:58:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2019-11-25 08:58:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:58:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-25 08:58:07,261 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-25 08:58:07,261 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-25 08:58:07,262 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:58:07,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-25 08:58:07,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:07,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:07,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:07,263 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:07,263 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:58:07,263 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 288#L367 assume !(main_~length~0 < 1); 292#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 293#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 294#L371-3 assume !(main_~i~0 < main_~length~0); 298#L371-4 main_~j~0 := 0; 289#L374-3 assume !!(main_~j~0 < main_~length~0); 290#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 297#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 285#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 286#L374-3 assume !!(main_~j~0 < main_~length~0); 281#L375-3 [2019-11-25 08:58:07,263 INFO L796 eck$LassoCheckResult]: Loop: 281#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 282#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem211;havoc main_#t~post212; 281#L375-3 [2019-11-25 08:58:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,264 INFO L82 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2019-11-25 08:58:07,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:07,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860698773] [2019-11-25 08:58:07,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:07,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860698773] [2019-11-25 08:58:07,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80996651] [2019-11-25 08:58:07,347 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:58:07,390 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:58:07,391 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:58:07,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:58:07,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:07,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:58:07,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-11-25 08:58:07,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470515378] [2019-11-25 08:58:07,446 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:58:07,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2019-11-25 08:58:07,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:07,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920886514] [2019-11-25 08:58:07,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:07,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:07,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:58:07,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:58:07,489 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 6 states. [2019-11-25 08:58:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:07,571 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-11-25 08:58:07,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:58:07,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-11-25 08:58:07,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:07,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2019-11-25 08:58:07,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-25 08:58:07,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-25 08:58:07,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2019-11-25 08:58:07,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:07,576 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-25 08:58:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2019-11-25 08:58:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-25 08:58:07,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:58:07,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-25 08:58:07,578 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-25 08:58:07,578 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-25 08:58:07,578 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:58:07,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2019-11-25 08:58:07,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:58:07,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:07,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:07,579 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:07,579 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:58:07,580 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 392#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 393#L367 assume !(main_~length~0 < 1); 399#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 400#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 401#L371-3 assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 402#L371-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 403#L371-3 assume !(main_~i~0 < main_~length~0); 405#L371-4 main_~j~0 := 0; 396#L374-3 assume !!(main_~j~0 < main_~length~0); 397#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 404#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 394#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 395#L374-3 assume !!(main_~j~0 < main_~length~0); 388#L375-3 [2019-11-25 08:58:07,580 INFO L796 eck$LassoCheckResult]: Loop: 388#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 389#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem211;havoc main_#t~post212; 388#L375-3 [2019-11-25 08:58:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,580 INFO L82 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2019-11-25 08:58:07,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:07,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251584325] [2019-11-25 08:58:07,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,622 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,624 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2019-11-25 08:58:07,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:07,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562856498] [2019-11-25 08:58:07,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2019-11-25 08:58:07,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:07,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947214236] [2019-11-25 08:58:07,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:07,692 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:07,998 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-11-25 08:58:08,069 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:08,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:08,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:08,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:08,069 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:08,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:08,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:08,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2019-11-25 08:58:08,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:08,070 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:08,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,208 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-11-25 08:58:08,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:08,493 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:08,493 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:08,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:08,518 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:08,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:08,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,570 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 Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:08,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:08,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:08,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:58:08,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:08,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:08,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:08,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:08,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:08,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:08,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:08,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:58:08,627 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_320741d2-5eae-4547-bbd9-aac595c251b6/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:08,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:08,632 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:58:08,632 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:08,632 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2 Supporting invariants [] Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:08,652 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2019-11-25 08:58:08,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:58:08,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:08,694 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:08,694 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-25 08:58:08,706 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-25 08:58:08,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-25 08:58:08,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-25 08:58:08,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,708 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:58:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:08,755 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:08,755 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-25 08:58:08,767 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-25 08:58:08,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-25 08:58:08,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-25 08:58:08,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,769 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:58:08,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:08,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:58:08,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:08,829 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:08,829 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-25 08:58:08,843 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 23 states and 28 transitions. Complement of second has 6 states. [2019-11-25 08:58:08,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-25 08:58:08,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-25 08:58:08,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-25 08:58:08,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-25 08:58:08,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-11-25 08:58:08,846 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:08,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-25 08:58:08,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:58:08,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:58:08,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:58:08,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:08,847 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,847 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,847 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,847 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:58:08,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:58:08,847 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:08,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:58:08,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:58:08 BoogieIcfgContainer [2019-11-25 08:58:08,854 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:58:08,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:08,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:08,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:08,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04" (3/4) ... [2019-11-25 08:58:08,859 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:58:08,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:08,860 INFO L168 Benchmark]: Toolchain (without parser) took 5886.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.1 MB). Free memory was 939.4 MB in the beginning and 850.4 MB in the end (delta: 89.0 MB). Peak memory consumption was 329.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,861 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:08,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -215.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.95 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,862 INFO L168 Benchmark]: Boogie Preprocessor took 24.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:08,863 INFO L168 Benchmark]: RCFGBuilder took 417.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,864 INFO L168 Benchmark]: BuchiAutomizer took 4828.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 277.7 MB). Peak memory consumption was 340.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,864 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.3 GB. Free memory is still 850.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:08,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 561.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -215.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.95 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 417.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4828.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 277.7 MB). Peak memory consumption was 340.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.3 GB. Free memory is still 850.4 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 110 SDslu, 43 SDs, 0 SdLazy, 109 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf99 lsp95 ukn78 mio100 lsp60 div100 bol100 ite100 ukn100 eq157 hnf87 smp93 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms 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...