./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9d3cc6bed79d5f36ef86c37a4cddb412902bd9be .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:33:01,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:33:01,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:33:01,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:33:01,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:33:01,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:33:01,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:33:01,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:33:01,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:33:01,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:33:01,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:33:01,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:33:01,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:33:01,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:33:01,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:33:01,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:33:01,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:33:01,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:33:01,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:33:01,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:33:01,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:33:01,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:33:01,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:33:01,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:33:01,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:33:01,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:33:01,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:33:01,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:33:01,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:33:01,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:33:01,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:33:01,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:33:01,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:33:01,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:33:01,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:33:01,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:33:01,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:33:01,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:33:01,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:33:01,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:33:01,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:33:01,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:33:01,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:33:01,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:33:01,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:33:01,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:33:01,960 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:33:01,960 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:33:01,961 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:33:01,961 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:33:01,961 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:33:01,961 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:33:01,961 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:33:01,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:33:01,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:33:01,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:33:01,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:33:01,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:33:01,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:33:01,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:33:01,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:33:01,963 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:33:01,964 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:33:01,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:33:01,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:33:01,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:33:01,965 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:33:01,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:33:01,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:33:01,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:33:01,966 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:33:01,967 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:33:01,967 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 9d3cc6bed79d5f36ef86c37a4cddb412902bd9be [2019-11-28 20:33:02,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:33:02,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:33:02,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:33:02,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:33:02,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:33:02,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2019-11-28 20:33:02,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078d2863a/4830ec9e2bdb4c4a888ad7e747fb3b82/FLAGbe1b74c8b [2019-11-28 20:33:02,917 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:33:02,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2019-11-28 20:33:02,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078d2863a/4830ec9e2bdb4c4a888ad7e747fb3b82/FLAGbe1b74c8b [2019-11-28 20:33:03,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078d2863a/4830ec9e2bdb4c4a888ad7e747fb3b82 [2019-11-28 20:33:03,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:33:03,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:33:03,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:33:03,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:33:03,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:33:03,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245e5474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03, skipping insertion in model container [2019-11-28 20:33:03,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:33:03,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:33:03,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:33:03,678 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:33:03,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:33:03,789 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:33:03,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03 WrapperNode [2019-11-28 20:33:03,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:33:03,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:33:03,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:33:03,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:33:03,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:33:03,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:33:03,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:33:03,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:33:03,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... [2019-11-28 20:33:03,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:33:03,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:33:03,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:33:03,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:33:03,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:33:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:33:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:33:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:33:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:33:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:33:04,252 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:33:04,253 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:33:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:33:04 BoogieIcfgContainer [2019-11-28 20:33:04,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:33:04,255 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:33:04,255 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:33:04,259 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:33:04,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:33:04,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:33:03" (1/3) ... [2019-11-28 20:33:04,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69615ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:33:04, skipping insertion in model container [2019-11-28 20:33:04,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:33:04,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:33:03" (2/3) ... [2019-11-28 20:33:04,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69615ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:33:04, skipping insertion in model container [2019-11-28 20:33:04,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:33:04,265 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:33:04" (3/3) ... [2019-11-28 20:33:04,267 INFO L371 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2019-11-28 20:33:04,316 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:33:04,316 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:33:04,316 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:33:04,317 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:33:04,317 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:33:04,317 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:33:04,317 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:33:04,317 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:33:04,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-28 20:33:04,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 20:33:04,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:04,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:04,362 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:33:04,362 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:04,362 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:33:04,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-28 20:33:04,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 20:33:04,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:04,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:04,366 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:33:04,366 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:04,375 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 8#L559-2true [2019-11-28 20:33:04,375 INFO L796 eck$LassoCheckResult]: Loop: 8#L559-2true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 13#L550-1true assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6#L550-3true assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L551true assume main_#t~mem7 > 0;havoc main_#t~mem7; 7#L552true assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 8#L559-2true [2019-11-28 20:33:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:04,382 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 20:33:04,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:04,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370031605] [2019-11-28 20:33:04,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,518 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:04,520 INFO L82 PathProgramCache]: Analyzing trace with hash 35409681, now seen corresponding path program 1 times [2019-11-28 20:33:04,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:04,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440037111] [2019-11-28 20:33:04,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,567 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:04,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 1 times [2019-11-28 20:33:04,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:04,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992772932] [2019-11-28 20:33:04,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:04,642 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:04,835 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-11-28 20:33:05,029 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-28 20:33:05,097 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:05,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:05,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:05,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:05,099 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:05,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:05,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:05,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:05,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2019-11-28 20:33:05,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:05,101 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:05,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,329 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-11-28 20:33:05,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:05,922 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:05,928 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:05,945 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 [2019-11-28 20:33:05,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:05,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:05,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:05,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:05,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:05,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:05,952 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 [2019-11-28 20:33:05,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:05,972 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 [2019-11-28 20:33:05,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:05,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:05,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:05,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:05,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:05,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:05,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:05,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:05,999 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 [2019-11-28 20:33:06,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:06,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:06,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:06,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:06,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:06,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:06,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:06,035 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 [2019-11-28 20:33:06,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:06,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:06,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:06,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:06,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:06,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:06,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:06,098 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:06,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:06,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:06,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:06,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:06,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:06,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:06,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:06,109 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:06,118 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:33:06,119 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:06,139 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:33:06,140 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:33:06,140 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:06,141 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] [2019-11-28 20:33:06,254 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:06,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:06,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:06,341 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:33:06,343 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:06,362 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:06,363 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:06,434 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 20:33:06,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2019-11-28 20:33:06,605 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 54 states and 72 transitions. Complement of second has 12 states. [2019-11-28 20:33:06,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:06,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:33:06,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2019-11-28 20:33:06,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 2 letters. Loop has 5 letters. [2019-11-28 20:33:06,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:06,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 7 letters. Loop has 5 letters. [2019-11-28 20:33:06,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:06,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 2 letters. Loop has 10 letters. [2019-11-28 20:33:06,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:06,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 72 transitions. [2019-11-28 20:33:06,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:06,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 28 states and 43 transitions. [2019-11-28 20:33:06,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-28 20:33:06,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-11-28 20:33:06,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 43 transitions. [2019-11-28 20:33:06,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:06,627 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-11-28 20:33:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 43 transitions. [2019-11-28 20:33:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-11-28 20:33:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 20:33:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 30 transitions. [2019-11-28 20:33:06,659 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 30 transitions. [2019-11-28 20:33:06,659 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 30 transitions. [2019-11-28 20:33:06,659 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:33:06,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 30 transitions. [2019-11-28 20:33:06,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:06,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:06,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:06,661 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:33:06,661 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:06,662 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 172#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 173#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 184#L550-1 [2019-11-28 20:33:06,662 INFO L796 eck$LassoCheckResult]: Loop: 184#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 174#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 175#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 179#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 180#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 184#L550-1 [2019-11-28 20:33:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:06,662 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-28 20:33:06,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:06,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780021913] [2019-11-28 20:33:06,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:06,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:06,720 INFO L82 PathProgramCache]: Analyzing trace with hash 38421593, now seen corresponding path program 1 times [2019-11-28 20:33:06,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:06,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709453563] [2019-11-28 20:33:06,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,752 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:06,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:06,753 INFO L82 PathProgramCache]: Analyzing trace with hash 177749398, now seen corresponding path program 1 times [2019-11-28 20:33:06,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:06,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904135685] [2019-11-28 20:33:06,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:06,834 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:07,001 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 20:33:07,239 WARN L192 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-11-28 20:33:07,409 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-11-28 20:33:07,590 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-28 20:33:07,593 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:07,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:07,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:07,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:07,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:07,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:07,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:07,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:07,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration2_Lasso [2019-11-28 20:33:07,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:07,596 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:07,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:07,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:08,024 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-28 20:33:08,157 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-11-28 20:33:08,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:08,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:08,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:08,655 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:08,655 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:08,668 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 [2019-11-28 20:33:08,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:08,690 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 [2019-11-28 20:33:08,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:08,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:08,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,725 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 [2019-11-28 20:33:08,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:08,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:08,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:08,759 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 [2019-11-28 20:33:08,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:08,785 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 [2019-11-28 20:33:08,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:08,790 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 [2019-11-28 20:33:08,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:08,809 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:08,821 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 [2019-11-28 20:33:08,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,830 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 [2019-11-28 20:33:08,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,845 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 [2019-11-28 20:33:08,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,860 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 [2019-11-28 20:33:08,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,869 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 [2019-11-28 20:33:08,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,879 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 [2019-11-28 20:33:08,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:08,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:08,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,907 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 [2019-11-28 20:33:08,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:08,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:33:08,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:08,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:08,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:08,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:08,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:08,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:08,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:08,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:08,939 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:33:08,940 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:08,944 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:33:08,944 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:33:08,945 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:08,945 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_2 Supporting invariants [] [2019-11-28 20:33:08,993 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:08,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:09,028 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:09,029 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:09,044 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:09,045 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:09,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:09,126 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2019-11-28 20:33:09,128 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:09,134 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:09,135 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:09,135 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-11-28 20:33:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:09,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 20:33:09,150 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 30 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-28 20:33:09,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 30 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 43 states and 66 transitions. Complement of second has 9 states. [2019-11-28 20:33:09,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:33:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-28 20:33:09,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 5 letters. [2019-11-28 20:33:09,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:09,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 8 letters. Loop has 5 letters. [2019-11-28 20:33:09,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:09,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 10 letters. [2019-11-28 20:33:09,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:09,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 66 transitions. [2019-11-28 20:33:09,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:09,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 41 states and 64 transitions. [2019-11-28 20:33:09,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-28 20:33:09,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-28 20:33:09,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 64 transitions. [2019-11-28 20:33:09,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:09,231 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 64 transitions. [2019-11-28 20:33:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 64 transitions. [2019-11-28 20:33:09,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-11-28 20:33:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 20:33:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 61 transitions. [2019-11-28 20:33:09,237 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 61 transitions. [2019-11-28 20:33:09,237 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 61 transitions. [2019-11-28 20:33:09,237 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:33:09,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 61 transitions. [2019-11-28 20:33:09,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:09,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:09,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:09,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:33:09,239 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:09,240 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 332#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 333#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 357#L550-1 assume !main_#t~short6; 353#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 347#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 348#L559 [2019-11-28 20:33:09,240 INFO L796 eck$LassoCheckResult]: Loop: 348#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 343#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 344#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 350#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 351#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 348#L559 [2019-11-28 20:33:09,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,240 INFO L82 PathProgramCache]: Analyzing trace with hash 889571379, now seen corresponding path program 1 times [2019-11-28 20:33:09,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:09,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623173833] [2019-11-28 20:33:09,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:09,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623173833] [2019-11-28 20:33:09,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:33:09,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:33:09,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982535529] [2019-11-28 20:33:09,291 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 20:33:09,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,291 INFO L82 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 1 times [2019-11-28 20:33:09,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:09,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465258673] [2019-11-28 20:33:09,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,308 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:09,427 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-11-28 20:33:09,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:33:09,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:33:09,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:33:09,471 INFO L87 Difference]: Start difference. First operand 39 states and 61 transitions. cyclomatic complexity: 27 Second operand 3 states. [2019-11-28 20:33:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:33:09,485 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2019-11-28 20:33:09,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:33:09,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2019-11-28 20:33:09,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:09,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 39 states and 50 transitions. [2019-11-28 20:33:09,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-28 20:33:09,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-28 20:33:09,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2019-11-28 20:33:09,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:09,495 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-28 20:33:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2019-11-28 20:33:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 20:33:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 20:33:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-28 20:33:09,499 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-28 20:33:09,499 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-28 20:33:09,500 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:33:09,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2019-11-28 20:33:09,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 20:33:09,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:09,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:09,502 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:33:09,502 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:09,502 INFO L794 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 423#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 424#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 434#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 447#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 438#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 439#L559 [2019-11-28 20:33:09,502 INFO L796 eck$LassoCheckResult]: Loop: 439#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 445#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 450#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 425#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 426#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 439#L559 [2019-11-28 20:33:09,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,503 INFO L82 PathProgramCache]: Analyzing trace with hash 889569457, now seen corresponding path program 1 times [2019-11-28 20:33:09,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:09,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295320340] [2019-11-28 20:33:09,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,525 INFO L82 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 2 times [2019-11-28 20:33:09,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:09,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435593981] [2019-11-28 20:33:09,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,546 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:09,547 INFO L82 PathProgramCache]: Analyzing trace with hash -127775619, now seen corresponding path program 1 times [2019-11-28 20:33:09,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:09,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258069812] [2019-11-28 20:33:09,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:09,588 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:09,712 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-11-28 20:33:10,038 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-11-28 20:33:10,119 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:10,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:10,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:10,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:10,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:10,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:10,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:10,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration4_Lasso [2019-11-28 20:33:10,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:10,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:10,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,324 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-11-28 20:33:10,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:10,878 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:10,878 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:10,899 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 [2019-11-28 20:33:10,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:10,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:10,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:10,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:33:10,909 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 [2019-11-28 20:33:10,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:10,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:10,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,919 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 [2019-11-28 20:33:10,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:10,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:10,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:10,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,934 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 [2019-11-28 20:33:10,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:10,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:10,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,947 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 [2019-11-28 20:33:10,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:10,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:10,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:10,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,959 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 [2019-11-28 20:33:10,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:10,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:10,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:10,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:10,971 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 [2019-11-28 20:33:10,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:10,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:10,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:10,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:10,991 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 [2019-11-28 20:33:10,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:10,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:10,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:10,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:10,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:10,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:11,006 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 [2019-11-28 20:33:11,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:11,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:11,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:11,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:11,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:11,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:11,026 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 [2019-11-28 20:33:11,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:11,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:11,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:11,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:11,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:11,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:11,043 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 [2019-11-28 20:33:11,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:11,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:11,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:11,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:11,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:11,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,060 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 [2019-11-28 20:33:11,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:11,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:11,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:11,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:11,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:11,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:11,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,079 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 [2019-11-28 20:33:11,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:11,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:11,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:11,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:11,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:11,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:11,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:11,110 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-28 20:33:11,110 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:11,116 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:11,119 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:33:11,120 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:11,120 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3 Supporting invariants [] [2019-11-28 20:33:11,150 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:11,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:11,189 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:11,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:11,202 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:33:11,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:11,212 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-11-28 20:33:11,213 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,215 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:11,215 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,215 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:9 [2019-11-28 20:33:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:11,236 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 20:33:11,236 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand 4 states. [2019-11-28 20:33:11,321 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 65 states and 85 transitions. Complement of second has 9 states. [2019-11-28 20:33:11,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:33:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2019-11-28 20:33:11,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 5 letters. [2019-11-28 20:33:11,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:11,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-28 20:33:11,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:11,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 10 letters. [2019-11-28 20:33:11,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:11,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 85 transitions. [2019-11-28 20:33:11,326 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2019-11-28 20:33:11,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 64 states and 84 transitions. [2019-11-28 20:33:11,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-11-28 20:33:11,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2019-11-28 20:33:11,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 84 transitions. [2019-11-28 20:33:11,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:11,327 INFO L688 BuchiCegarLoop]: Abstraction has 64 states and 84 transitions. [2019-11-28 20:33:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 84 transitions. [2019-11-28 20:33:11,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2019-11-28 20:33:11,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-28 20:33:11,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2019-11-28 20:33:11,333 INFO L711 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2019-11-28 20:33:11,333 INFO L591 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2019-11-28 20:33:11,333 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:33:11,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 80 transitions. [2019-11-28 20:33:11,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2019-11-28 20:33:11,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:11,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:11,335 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:33:11,335 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2019-11-28 20:33:11,336 INFO L794 eck$LassoCheckResult]: Stem: 634#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 632#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 633#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 643#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 671#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 664#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 660#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 661#L559-2 [2019-11-28 20:33:11,336 INFO L796 eck$LassoCheckResult]: Loop: 661#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 672#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 635#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 636#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 647#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 676#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 648#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 649#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 666#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 667#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 661#L559-2 [2019-11-28 20:33:11,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 2 times [2019-11-28 20:33:11,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:11,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516766000] [2019-11-28 20:33:11,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,356 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:11,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,357 INFO L82 PathProgramCache]: Analyzing trace with hash -552559553, now seen corresponding path program 1 times [2019-11-28 20:33:11,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:11,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140715634] [2019-11-28 20:33:11,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:11,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140715634] [2019-11-28 20:33:11,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:33:11,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:33:11,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350722706] [2019-11-28 20:33:11,518 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:33:11,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:33:11,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:33:11,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:33:11,518 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. cyclomatic complexity: 26 Second operand 7 states. [2019-11-28 20:33:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:33:11,642 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2019-11-28 20:33:11,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:33:11,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 100 transitions. [2019-11-28 20:33:11,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2019-11-28 20:33:11,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 67 states and 83 transitions. [2019-11-28 20:33:11,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2019-11-28 20:33:11,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2019-11-28 20:33:11,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 83 transitions. [2019-11-28 20:33:11,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:11,647 INFO L688 BuchiCegarLoop]: Abstraction has 67 states and 83 transitions. [2019-11-28 20:33:11,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 83 transitions. [2019-11-28 20:33:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 46. [2019-11-28 20:33:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-28 20:33:11,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2019-11-28 20:33:11,651 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2019-11-28 20:33:11,651 INFO L591 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2019-11-28 20:33:11,651 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 20:33:11,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 59 transitions. [2019-11-28 20:33:11,652 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2019-11-28 20:33:11,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:11,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:11,653 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:33:11,653 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:11,653 INFO L794 eck$LassoCheckResult]: Stem: 795#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 789#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 790#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 824#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 823#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 816#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 814#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 800#L559-2 [2019-11-28 20:33:11,653 INFO L796 eck$LassoCheckResult]: Loop: 800#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 801#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 791#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 792#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 804#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 800#L559-2 [2019-11-28 20:33:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 3 times [2019-11-28 20:33:11,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:11,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189788963] [2019-11-28 20:33:11,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:11,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,673 INFO L82 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2019-11-28 20:33:11,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:11,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457299300] [2019-11-28 20:33:11,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:11,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:11,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:11,686 INFO L82 PathProgramCache]: Analyzing trace with hash 333922885, now seen corresponding path program 1 times [2019-11-28 20:33:11,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:11,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37143727] [2019-11-28 20:33:11,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:11,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37143727] [2019-11-28 20:33:11,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729067417] [2019-11-28 20:33:11,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:33:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:11,840 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 20:33:11,841 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:11,900 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2019-11-28 20:33:11,901 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,906 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:11,906 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,907 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:16 [2019-11-28 20:33:11,917 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-11-28 20:33:11,919 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,923 INFO L614 ElimStorePlain]: treesize reduction 4, result has 42.9 percent of original size [2019-11-28 20:33:11,923 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:11,924 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2019-11-28 20:33:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:11,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:33:11,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2019-11-28 20:33:11,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996727301] [2019-11-28 20:33:12,042 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2019-11-28 20:33:12,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:33:12,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 20:33:12,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:33:12,075 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. cyclomatic complexity: 18 Second operand 10 states. [2019-11-28 20:33:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:33:12,216 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2019-11-28 20:33:12,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 20:33:12,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 66 transitions. [2019-11-28 20:33:12,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2019-11-28 20:33:12,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 50 states and 61 transitions. [2019-11-28 20:33:12,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-11-28 20:33:12,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-11-28 20:33:12,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 61 transitions. [2019-11-28 20:33:12,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:12,220 INFO L688 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-28 20:33:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 61 transitions. [2019-11-28 20:33:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-28 20:33:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-28 20:33:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-11-28 20:33:12,224 INFO L711 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-28 20:33:12,224 INFO L591 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-28 20:33:12,224 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-28 20:33:12,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 61 transitions. [2019-11-28 20:33:12,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2019-11-28 20:33:12,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:12,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:12,226 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:33:12,226 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:12,227 INFO L794 eck$LassoCheckResult]: Stem: 947#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 941#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 942#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 959#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 960#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 956#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 957#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 964#L559-2 [2019-11-28 20:33:12,227 INFO L796 eck$LassoCheckResult]: Loop: 964#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 977#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 974#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 971#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 962#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 964#L559-2 [2019-11-28 20:33:12,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:12,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2019-11-28 20:33:12,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:12,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303366100] [2019-11-28 20:33:12,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:12,248 INFO L82 PathProgramCache]: Analyzing trace with hash 35409939, now seen corresponding path program 1 times [2019-11-28 20:33:12,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:12,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794575194] [2019-11-28 20:33:12,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,264 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 2 times [2019-11-28 20:33:12,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:12,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981379207] [2019-11-28 20:33:12,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:12,297 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:12,426 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-11-28 20:33:12,781 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 76 [2019-11-28 20:33:12,875 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:12,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:12,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:12,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:12,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:12,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:12,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:12,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:12,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2019-11-28 20:33:12,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:12,877 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:12,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:12,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:13,141 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 20:33:13,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:13,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:13,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:13,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:13,666 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:13,666 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,673 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 [2019-11-28 20:33:13,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,681 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 [2019-11-28 20:33:13,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,697 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 [2019-11-28 20:33:13,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,713 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 [2019-11-28 20:33:13,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,723 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 [2019-11-28 20:33:13,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,733 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 [2019-11-28 20:33:13,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,746 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 [2019-11-28 20:33:13,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,764 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 [2019-11-28 20:33:13,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,780 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 [2019-11-28 20:33:13,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,808 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 [2019-11-28 20:33:13,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,817 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,823 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 [2019-11-28 20:33:13,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,832 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 [2019-11-28 20:33:13,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,846 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 [2019-11-28 20:33:13,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:13,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:13,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:13,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,855 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 [2019-11-28 20:33:13,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,887 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,902 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 [2019-11-28 20:33:13,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,920 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 [2019-11-28 20:33:13,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,939 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:13,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,958 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 [2019-11-28 20:33:13,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:13,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:13,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:13,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:13,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:13,967 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:13,983 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 20:33:13,983 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:13,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:13,995 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:33:13,995 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:13,996 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4 Supporting invariants [] [2019-11-28 20:33:14,037 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:14,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:14,074 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:14,075 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:14,086 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:33:14,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:14,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:14,150 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 20:33:14,151 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 61 transitions. cyclomatic complexity: 16 Second operand 6 states. [2019-11-28 20:33:14,226 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 61 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 78 states and 95 transitions. Complement of second has 11 states. [2019-11-28 20:33:14,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 20:33:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-28 20:33:14,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 7 letters. Loop has 5 letters. [2019-11-28 20:33:14,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:14,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 12 letters. Loop has 5 letters. [2019-11-28 20:33:14,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:14,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 7 letters. Loop has 10 letters. [2019-11-28 20:33:14,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:14,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 95 transitions. [2019-11-28 20:33:14,229 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 29 [2019-11-28 20:33:14,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 73 states and 89 transitions. [2019-11-28 20:33:14,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-28 20:33:14,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2019-11-28 20:33:14,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 89 transitions. [2019-11-28 20:33:14,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:14,232 INFO L688 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2019-11-28 20:33:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 89 transitions. [2019-11-28 20:33:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2019-11-28 20:33:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-28 20:33:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2019-11-28 20:33:14,237 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2019-11-28 20:33:14,237 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2019-11-28 20:33:14,237 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-28 20:33:14,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 80 transitions. [2019-11-28 20:33:14,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2019-11-28 20:33:14,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:14,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:14,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-11-28 20:33:14,240 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:14,240 INFO L794 eck$LassoCheckResult]: Stem: 1187#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1181#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 1182#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1224#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1221#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1218#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 1216#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 1213#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1214#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1238#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1242#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1207#L552 [2019-11-28 20:33:14,240 INFO L796 eck$LassoCheckResult]: Loop: 1207#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 1239#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1240#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1212#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1208#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1207#L552 [2019-11-28 20:33:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:14,240 INFO L82 PathProgramCache]: Analyzing trace with hash -125928585, now seen corresponding path program 1 times [2019-11-28 20:33:14,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:14,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728122838] [2019-11-28 20:33:14,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:14,266 INFO L82 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 2 times [2019-11-28 20:33:14,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:14,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679492987] [2019-11-28 20:33:14,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:14,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1455202663, now seen corresponding path program 1 times [2019-11-28 20:33:14,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:14,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695860574] [2019-11-28 20:33:14,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:14,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:14,428 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-11-28 20:33:14,814 WARN L192 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2019-11-28 20:33:14,914 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:14,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:14,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:14,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:14,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:14,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:14,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:14,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:14,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2019-11-28 20:33:14,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:14,915 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:14,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:14,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,099 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-28 20:33:15,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:15,623 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:15,624 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,633 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 [2019-11-28 20:33:15,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:15,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:15,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:15,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:15,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:15,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:15,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:15,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:15,650 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 [2019-11-28 20:33:15,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:15,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:15,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:15,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:15,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:15,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:15,671 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 [2019-11-28 20:33:15,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:15,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:15,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:15,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:15,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:15,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:15,691 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 [2019-11-28 20:33:15,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:15,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:15,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:15,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:15,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:15,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:15,723 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 [2019-11-28 20:33:15,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:15,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:15,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:15,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:15,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:15,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:15,747 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 20:33:15,748 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:15,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:15,783 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:33:15,783 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:15,783 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_5) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_5 Supporting invariants [] [2019-11-28 20:33:15,823 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:15,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:15,868 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 20:33:15,870 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:15,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:15,928 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:15,928 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-28 20:33:15,928 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:15,936 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:15,937 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-28 20:33:15,937 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:15,964 INFO L614 ElimStorePlain]: treesize reduction 1, result has 95.2 percent of original size [2019-11-28 20:33:15,965 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-11-28 20:33:15,965 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:41, output treesize:20 [2019-11-28 20:33:15,996 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:15,997 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2019-11-28 20:33:15,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:15,999 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-28 20:33:16,006 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:16,006 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:16,006 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:10 [2019-11-28 20:33:16,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:16,033 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:16,034 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:16,043 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 20 [2019-11-28 20:33:16,043 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:16,051 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:16,051 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:16,052 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:14 [2019-11-28 20:33:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:16,085 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 3 loop predicates [2019-11-28 20:33:16,086 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 22 Second operand 9 states. [2019-11-28 20:33:16,335 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 22. Second operand 9 states. Result 169 states and 208 transitions. Complement of second has 11 states. [2019-11-28 20:33:16,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 20:33:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 25 transitions. [2019-11-28 20:33:16,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 25 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-28 20:33:16,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:16,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 25 transitions. Stem has 16 letters. Loop has 5 letters. [2019-11-28 20:33:16,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:16,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 25 transitions. Stem has 11 letters. Loop has 10 letters. [2019-11-28 20:33:16,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:16,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 208 transitions. [2019-11-28 20:33:16,343 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 34 [2019-11-28 20:33:16,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 149 states and 187 transitions. [2019-11-28 20:33:16,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-11-28 20:33:16,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2019-11-28 20:33:16,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 187 transitions. [2019-11-28 20:33:16,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:16,346 INFO L688 BuchiCegarLoop]: Abstraction has 149 states and 187 transitions. [2019-11-28 20:33:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 187 transitions. [2019-11-28 20:33:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 122. [2019-11-28 20:33:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-28 20:33:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 157 transitions. [2019-11-28 20:33:16,356 INFO L711 BuchiCegarLoop]: Abstraction has 122 states and 157 transitions. [2019-11-28 20:33:16,356 INFO L591 BuchiCegarLoop]: Abstraction has 122 states and 157 transitions. [2019-11-28 20:33:16,356 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-28 20:33:16,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 157 transitions. [2019-11-28 20:33:16,357 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 29 [2019-11-28 20:33:16,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:16,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:16,358 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-28 20:33:16,358 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:16,359 INFO L794 eck$LassoCheckResult]: Stem: 1556#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1550#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 1551#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1610#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1614#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1624#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1619#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 1618#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1562#L550-1 [2019-11-28 20:33:16,359 INFO L796 eck$LassoCheckResult]: Loop: 1562#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1552#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1553#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1557#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 1558#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1562#L550-1 [2019-11-28 20:33:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:16,359 INFO L82 PathProgramCache]: Analyzing trace with hash 177749336, now seen corresponding path program 2 times [2019-11-28 20:33:16,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:16,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928926658] [2019-11-28 20:33:16,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,381 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:16,381 INFO L82 PathProgramCache]: Analyzing trace with hash 38421593, now seen corresponding path program 3 times [2019-11-28 20:33:16,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:16,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776961344] [2019-11-28 20:33:16,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:16,394 INFO L82 PathProgramCache]: Analyzing trace with hash -2100968094, now seen corresponding path program 1 times [2019-11-28 20:33:16,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:16,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272373134] [2019-11-28 20:33:16,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:16,421 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:16,551 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-11-28 20:33:16,748 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-11-28 20:33:17,060 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2019-11-28 20:33:17,586 WARN L192 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2019-11-28 20:33:17,590 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:17,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:17,591 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:17,591 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:17,591 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:17,591 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:17,591 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:17,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:17,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2019-11-28 20:33:17,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:17,592 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:17,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:17,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:17,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:17,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:17,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:17,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,079 WARN L192 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-11-28 20:33:18,238 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-11-28 20:33:18,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:18,776 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:18,777 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,785 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 [2019-11-28 20:33:18,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:18,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:18,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:18,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,794 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 [2019-11-28 20:33:18,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:18,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:18,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:18,797 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,803 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 [2019-11-28 20:33:18,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:18,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,815 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 [2019-11-28 20:33:18,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:18,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,827 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 [2019-11-28 20:33:18,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:18,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:18,846 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 [2019-11-28 20:33:18,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:18,868 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 [2019-11-28 20:33:18,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:18,886 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 [2019-11-28 20:33:18,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,888 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-28 20:33:18,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,893 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-28 20:33:18,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:18,909 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 [2019-11-28 20:33:18,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,914 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,914 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:18,928 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 [2019-11-28 20:33:18,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:18,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:18,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:18,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:18,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:18,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,939 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:18,947 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 20:33:18,947 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:18,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:33:18,956 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:33:18,956 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:18,956 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_6) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_6 Supporting invariants [] [2019-11-28 20:33:19,000 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:19,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:19,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,034 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,035 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,049 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,050 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:19,088 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2019-11-28 20:33:19,088 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,093 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:19,093 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,093 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-11-28 20:33:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:19,107 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 20:33:19,107 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48 Second operand 5 states. [2019-11-28 20:33:19,149 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48. Second operand 5 states. Result 147 states and 182 transitions. Complement of second has 9 states. [2019-11-28 20:33:19,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:33:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-11-28 20:33:19,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 5 letters. [2019-11-28 20:33:19,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:19,150 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:33:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,188 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,189 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,205 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:19,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2019-11-28 20:33:19,256 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,268 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:19,268 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,269 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-11-28 20:33:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:19,283 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 20:33:19,284 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48 Second operand 5 states. [2019-11-28 20:33:19,331 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48. Second operand 5 states. Result 145 states and 182 transitions. Complement of second has 9 states. [2019-11-28 20:33:19,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:33:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2019-11-28 20:33:19,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 8 letters. Loop has 5 letters. [2019-11-28 20:33:19,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:19,333 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:33:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,362 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,363 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:19,376 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:33:19,377 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:19,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:33:19,425 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2019-11-28 20:33:19,425 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,431 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:19,431 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:19,432 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-11-28 20:33:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:19,447 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 4 loop predicates [2019-11-28 20:33:19,447 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48 Second operand 5 states. [2019-11-28 20:33:19,490 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 157 transitions. cyclomatic complexity: 48. Second operand 5 states. Result 214 states and 257 transitions. Complement of second has 8 states. [2019-11-28 20:33:19,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 20:33:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:33:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-28 20:33:19,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 5 letters. [2019-11-28 20:33:19,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:19,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 13 letters. Loop has 5 letters. [2019-11-28 20:33:19,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:19,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 10 letters. [2019-11-28 20:33:19,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:19,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 257 transitions. [2019-11-28 20:33:19,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2019-11-28 20:33:19,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 157 states and 195 transitions. [2019-11-28 20:33:19,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2019-11-28 20:33:19,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2019-11-28 20:33:19,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 157 states and 195 transitions. [2019-11-28 20:33:19,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:19,499 INFO L688 BuchiCegarLoop]: Abstraction has 157 states and 195 transitions. [2019-11-28 20:33:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states and 195 transitions. [2019-11-28 20:33:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 122. [2019-11-28 20:33:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-11-28 20:33:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 154 transitions. [2019-11-28 20:33:19,507 INFO L711 BuchiCegarLoop]: Abstraction has 122 states and 154 transitions. [2019-11-28 20:33:19,507 INFO L591 BuchiCegarLoop]: Abstraction has 122 states and 154 transitions. [2019-11-28 20:33:19,507 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-28 20:33:19,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 154 transitions. [2019-11-28 20:33:19,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2019-11-28 20:33:19,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:19,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:19,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2019-11-28 20:33:19,510 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 20:33:19,510 INFO L794 eck$LassoCheckResult]: Stem: 2401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2395#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 2396#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2458#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2438#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2439#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2434#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 2433#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2478#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2477#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2476#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2415#L559 [2019-11-28 20:33:19,510 INFO L796 eck$LassoCheckResult]: Loop: 2415#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 2416#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2505#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2509#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2508#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2415#L559 [2019-11-28 20:33:19,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,511 INFO L82 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 3 times [2019-11-28 20:33:19,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:19,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915396937] [2019-11-28 20:33:19,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:19,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,562 INFO L82 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 3 times [2019-11-28 20:33:19,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:19,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776175538] [2019-11-28 20:33:19,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:19,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:19,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1691624047, now seen corresponding path program 1 times [2019-11-28 20:33:19,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:19,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139966653] [2019-11-28 20:33:19,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:19,612 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:19,726 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-11-28 20:33:20,146 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 92 [2019-11-28 20:33:20,245 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:33:20,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:33:20,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:33:20,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:33:20,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:33:20,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:20,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:33:20,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:33:20,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration10_Lasso [2019-11-28 20:33:20,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:33:20,246 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:33:20,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,470 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-11-28 20:33:20,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:33:20,976 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:33:20,976 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:20,980 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 [2019-11-28 20:33:20,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:20,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:20,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:20,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:20,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:20,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:20,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:20,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:20,991 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 [2019-11-28 20:33:20,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:20,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:20,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:20,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:20,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:20,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:20,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,001 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 [2019-11-28 20:33:21,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,010 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 [2019-11-28 20:33:21,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,020 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 [2019-11-28 20:33:21,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,033 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 [2019-11-28 20:33:21,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:21,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:33:21,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:21,061 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 [2019-11-28 20:33:21,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,070 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 [2019-11-28 20:33:21,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,077 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 [2019-11-28 20:33:21,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,087 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 [2019-11-28 20:33:21,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,088 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 20:33:21,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,089 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 20:33:21,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,096 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 [2019-11-28 20:33:21,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,108 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 [2019-11-28 20:33:21,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,120 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 [2019-11-28 20:33:21,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,130 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 [2019-11-28 20:33:21,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,137 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 [2019-11-28 20:33:21,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,146 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 [2019-11-28 20:33:21,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:33:21,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:33:21,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:33:21,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:33:21,155 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,169 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 [2019-11-28 20:33:21,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,183 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 [2019-11-28 20:33:21,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,208 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 [2019-11-28 20:33:21,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,222 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 [2019-11-28 20:33:21,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:33:21,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:33:21,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:33:21,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:33:21,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:33:21,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:33:21,230 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:33:21,237 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 20:33:21,237 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:33:21,241 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:33:21,243 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:33:21,243 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:33:21,244 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_7) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_7 Supporting invariants [] [2019-11-28 20:33:21,278 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 20:33:21,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 20:33:21,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,314 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,315 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,323 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,323 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,329 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-11-28 20:33:21,330 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,334 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:21,334 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,335 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:9 [2019-11-28 20:33:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:21,355 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 20:33:21,355 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42 Second operand 4 states. [2019-11-28 20:33:21,399 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42. Second operand 4 states. Result 130 states and 164 transitions. Complement of second has 7 states. [2019-11-28 20:33:21,399 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 [2019-11-28 20:33:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:33:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-28 20:33:21,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-28 20:33:21,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:21,400 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:33:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,430 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,431 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,440 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,440 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,444 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-11-28 20:33:21,444 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,446 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:21,446 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,446 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:9 [2019-11-28 20:33:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:21,470 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 20:33:21,470 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42 Second operand 4 states. [2019-11-28 20:33:21,506 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42. Second operand 4 states. Result 130 states and 164 transitions. Complement of second has 7 states. [2019-11-28 20:33:21,506 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 [2019-11-28 20:33:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:33:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-28 20:33:21,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-28 20:33:21,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:21,507 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:33:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,537 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,538 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,547 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,548 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,554 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2019-11-28 20:33:21,554 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,556 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:21,556 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,556 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:9 [2019-11-28 20:33:21,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:21,575 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 3 loop predicates [2019-11-28 20:33:21,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42 Second operand 4 states. [2019-11-28 20:33:21,619 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 122 states and 154 transitions. cyclomatic complexity: 42. Second operand 4 states. Result 159 states and 196 transitions. Complement of second has 6 states. [2019-11-28 20:33:21,619 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 [2019-11-28 20:33:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:33:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-28 20:33:21,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-28 20:33:21,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:21,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2019-11-28 20:33:21,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:21,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2019-11-28 20:33:21,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:33:21,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 196 transitions. [2019-11-28 20:33:21,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2019-11-28 20:33:21,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 129 states and 160 transitions. [2019-11-28 20:33:21,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2019-11-28 20:33:21,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-28 20:33:21,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 160 transitions. [2019-11-28 20:33:21,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:33:21,625 INFO L688 BuchiCegarLoop]: Abstraction has 129 states and 160 transitions. [2019-11-28 20:33:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 160 transitions. [2019-11-28 20:33:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 108. [2019-11-28 20:33:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 20:33:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2019-11-28 20:33:21,631 INFO L711 BuchiCegarLoop]: Abstraction has 108 states and 135 transitions. [2019-11-28 20:33:21,631 INFO L591 BuchiCegarLoop]: Abstraction has 108 states and 135 transitions. [2019-11-28 20:33:21,631 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-28 20:33:21,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 135 transitions. [2019-11-28 20:33:21,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2019-11-28 20:33:21,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:33:21,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:33:21,633 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2019-11-28 20:33:21,633 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1] [2019-11-28 20:33:21,633 INFO L794 eck$LassoCheckResult]: Stem: 3174#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3168#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 3169#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3252#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3256#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3255#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3253#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 3176#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3179#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3170#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3171#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 3186#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 3187#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3270#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3185#L550-3 [2019-11-28 20:33:21,634 INFO L796 eck$LassoCheckResult]: Loop: 3185#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3198#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3189#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 3194#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3192#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3193#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3272#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3177#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 3178#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3184#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3185#L550-3 [2019-11-28 20:33:21,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:21,634 INFO L82 PathProgramCache]: Analyzing trace with hash -705255448, now seen corresponding path program 2 times [2019-11-28 20:33:21,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:21,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819081305] [2019-11-28 20:33:21,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:33:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:21,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819081305] [2019-11-28 20:33:21,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578417444] [2019-11-28 20:33:21,833 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:33:21,881 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 20:33:21,881 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:33:21,882 INFO L264 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 20:33:21,883 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:33:21,894 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-28 20:33:21,895 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,897 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:21,897 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,897 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2019-11-28 20:33:21,947 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 20 [2019-11-28 20:33:21,947 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,954 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:33:21,954 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:21,955 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:7 [2019-11-28 20:33:22,022 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-11-28 20:33:22,023 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:33:22,027 INFO L614 ElimStorePlain]: treesize reduction 4, result has 42.9 percent of original size [2019-11-28 20:33:22,027 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:33:22,027 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2019-11-28 20:33:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:33:22,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:33:22,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2019-11-28 20:33:22,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464141875] [2019-11-28 20:33:22,035 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 20:33:22,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:33:22,035 INFO L82 PathProgramCache]: Analyzing trace with hash 757834051, now seen corresponding path program 1 times [2019-11-28 20:33:22,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:33:22,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800572398] [2019-11-28 20:33:22,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:33:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:33:22,055 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:33:22,338 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-11-28 20:33:22,637 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-11-28 20:33:22,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:33:22,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-28 20:33:22,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-11-28 20:33:22,639 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. cyclomatic complexity: 34 Second operand 15 states. [2019-11-28 20:33:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:33:22,886 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2019-11-28 20:33:22,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 20:33:22,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 103 transitions. [2019-11-28 20:33:22,888 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:33:22,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 0 states and 0 transitions. [2019-11-28 20:33:22,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:33:22,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:33:22,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:33:22,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:33:22,889 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:33:22,889 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:33:22,889 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:33:22,889 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-28 20:33:22,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:33:22,890 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:33:22,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:33:22,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:33:22 BoogieIcfgContainer [2019-11-28 20:33:22,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:33:22,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:33:22,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:33:22,898 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:33:22,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:33:04" (3/4) ... [2019-11-28 20:33:22,902 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:33:22,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:33:22,904 INFO L168 Benchmark]: Toolchain (without parser) took 19684.35 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 483.4 MB). Free memory was 956.3 MB in the beginning and 1.5 GB in the end (delta: -513.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:33:22,904 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:33:22,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:33:22,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.27 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. [2019-11-28 20:33:22,905 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:33:22,906 INFO L168 Benchmark]: RCFGBuilder took 376.78 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:33:22,906 INFO L168 Benchmark]: BuchiAutomizer took 18642.54 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 333.4 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -368.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:33:22,907 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 766.6 kB). Peak memory consumption was 766.6 kB. Max. memory is 11.5 GB. [2019-11-28 20:33:22,909 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 568.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.15 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 376.78 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 18642.54 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 333.4 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -368.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 766.6 kB). Peak memory consumption was 766.6 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 11 terminating modules (4 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 7 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 7 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.5s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 15.5s. Construction of modules took 0.6s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 125 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 122 states and ocurred in iteration 8. Nontrivial modules had stage [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 118 SDtfs, 158 SDslu, 67 SDs, 0 SdLazy, 489 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso7 LassoPreprocessingBenchmarks: Lassos: inital253 mio100 ax107 hnf100 lsp81 ukn66 mio100 lsp35 div100 bol103 ite100 ukn100 eq180 hnf88 smp97 dnf105 smp95 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...