./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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-15/count_up_and_down_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 94f95b6ef0a3c8650bd30cb1958ada590298bd1c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:03:29,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:03:29,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:03:29,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:03:29,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:03:29,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:03:29,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:03:29,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:03:29,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:03:29,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:03:29,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:03:29,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:03:29,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:03:29,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:03:29,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:03:29,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:03:29,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:03:29,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:03:29,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:03:29,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:03:29,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:03:29,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:03:29,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:03:29,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:03:29,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:03:29,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:03:29,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:03:29,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:03:29,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:03:29,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:03:29,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:03:29,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:03:29,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:03:29,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:03:29,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:03:29,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:03:29,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:03:29,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:03:29,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:03:29,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:03:29,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:03:29,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:03:29,340 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:03:29,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:03:29,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:03:29,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:03:29,343 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:03:29,343 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:03:29,343 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:03:29,344 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:03:29,344 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:03:29,344 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:03:29,345 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:03:29,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:03:29,346 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:03:29,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:03:29,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:03:29,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:03:29,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:03:29,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:03:29,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:03:29,348 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:03:29,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:03:29,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:03:29,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:03:29,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:03:29,349 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:03:29,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:03:29,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:03:29,350 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:03:29,351 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:03:29,352 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 -> 94f95b6ef0a3c8650bd30cb1958ada590298bd1c [2019-11-28 03:03:29,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:03:29,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:03:29,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:03:29,693 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:03:29,694 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:03:29,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-28 03:03:29,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62e854bf/f8fdadcaeada470ebd69b39a068f8f32/FLAG4db85aa08 [2019-11-28 03:03:30,313 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:03:30,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-28 03:03:30,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62e854bf/f8fdadcaeada470ebd69b39a068f8f32/FLAG4db85aa08 [2019-11-28 03:03:30,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62e854bf/f8fdadcaeada470ebd69b39a068f8f32 [2019-11-28 03:03:30,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:03:30,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:03:30,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:03:30,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:03:30,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:03:30,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:30" (1/1) ... [2019-11-28 03:03:30,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b116752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:30, skipping insertion in model container [2019-11-28 03:03:30,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:30" (1/1) ... [2019-11-28 03:03:30,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:03:30,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:03:31,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:03:31,076 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:03:31,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:03:31,235 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:03:31,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31 WrapperNode [2019-11-28 03:03:31,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:03:31,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:03:31,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:03:31,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:03:31,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:03:31,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:03:31,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:03:31,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:03:31,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (1/1) ... [2019-11-28 03:03:31,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:03:31,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:03:31,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:03:31,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:03:31,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (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 03:03:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:03:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:03:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:03:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:03:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:03:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:03:31,664 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:03:31,664 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 03:03:31,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:31 BoogieIcfgContainer [2019-11-28 03:03:31,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:03:31,670 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:03:31,671 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:03:31,674 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:03:31,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:31,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:03:30" (1/3) ... [2019-11-28 03:03:31,676 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d6a8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:31, skipping insertion in model container [2019-11-28 03:03:31,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:31,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:31" (2/3) ... [2019-11-28 03:03:31,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d6a8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:31, skipping insertion in model container [2019-11-28 03:03:31,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:31,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:31" (3/3) ... [2019-11-28 03:03:31,687 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2019-11-28 03:03:31,740 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:03:31,741 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:03:31,741 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:03:31,741 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:03:31,741 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:03:31,741 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:03:31,742 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:03:31,742 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:03:31,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-28 03:03:31,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:03:31,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:31,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:31,780 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:03:31,780 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:03:31,780 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:03:31,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-28 03:03:31,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:03:31,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:31,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:31,783 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:03:31,783 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:03:31,790 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 17#L367true assume !(main_~length~0 < 1); 3#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 12#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 15#L371-3true [2019-11-28 03:03:31,791 INFO L796 eck$LassoCheckResult]: Loop: 15#L371-3true assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 13#L371-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 15#L371-3true [2019-11-28 03:03:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:31,797 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-28 03:03:31,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:31,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41056793] [2019-11-28 03:03:31,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:31,957 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:31,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2019-11-28 03:03:31,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:31,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545662505] [2019-11-28 03:03:31,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:31,999 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:32,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2019-11-28 03:03:32,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:32,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916070930] [2019-11-28 03:03:32,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:32,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:32,174 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-28 03:03:32,338 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-11-28 03:03:32,399 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:03:32,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:03:32,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:03:32,401 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:03:32,401 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:03:32,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:32,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:03:32,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:03:32,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2019-11-28 03:03:32,402 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:03:32,403 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:03:32,427 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 03:03:32,436 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 03:03:32,440 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 03:03:32,443 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 03:03:32,445 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 03:03:32,450 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 03:03:32,456 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 03:03:32,459 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 03:03:32,461 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 03:03:32,686 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 03:03:32,690 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 03:03:32,693 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 03:03:32,987 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:03:32,993 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 03:03:33,000 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 03:03:33,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,007 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 03:03:33,011 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 03:03:33,030 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:33,040 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 03:03:33,059 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 03:03:33,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,064 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:03:33,070 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) [2019-11-28 03:03:33,087 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 03:03:33,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,093 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 03:03:33,106 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 03:03:33,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:33,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:33,119 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 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 03:03:33,135 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 03:03:33,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:33,140 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 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 03:03:33,149 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 03:03:33,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:33,155 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 03:03:33,164 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 03:03:33,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:33,170 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) [2019-11-28 03:03:33,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:33,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:33,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:33,185 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 03:03:33,203 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 03:03:33,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:33,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,219 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 03:03:33,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:33,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:33,250 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:33,264 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 03:03:33,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:33,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:33,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:33,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:33,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:33,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:33,297 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:03:33,345 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:03:33,345 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. 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 03:03:33,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:03:33,364 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:03:33,365 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:03:33,366 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1 - 4*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~arr~0.offset >= 0] [2019-11-28 03:03:33,491 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-28 03:03:33,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:03:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:33,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:03:33,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:33,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:03:33,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:33,644 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 03:03:33,662 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 03:03:33,663 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2019-11-28 03:03:33,777 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 36 states and 51 transitions. Complement of second has 9 states. [2019-11-28 03:03:33,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:03:33,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:03:33,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2019-11-28 03:03:33,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 03:03:33,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:33,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:03:33,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:33,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-28 03:03:33,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:33,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2019-11-28 03:03:33,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:03:33,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 13 states and 17 transitions. [2019-11-28 03:03:33,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 03:03:33,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 03:03:33,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-28 03:03:33,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:03:33,799 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-28 03:03:33,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 03:03:33,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 03:03:33,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-28 03:03:33,831 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:33,831 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:33,831 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:03:33,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-28 03:03:33,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:03:33,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:33,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:33,833 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:33,833 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:03:33,833 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 130#L367 assume !(main_~length~0 < 1); 136#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 137#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 140#L371-3 assume !(main_~i~0 < main_~length~0); 141#L371-4 main_~j~0 := 0; 134#L374-3 [2019-11-28 03:03:33,834 INFO L796 eck$LassoCheckResult]: Loop: 134#L374-3 assume !!(main_~j~0 < main_~length~0); 131#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 132#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 133#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 134#L374-3 [2019-11-28 03:03:33,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:33,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2019-11-28 03:03:33,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:33,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352106756] [2019-11-28 03:03:33,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,860 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:33,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:33,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2019-11-28 03:03:33,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:33,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428864037] [2019-11-28 03:03:33,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:33,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:33,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2019-11-28 03:03:33,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:33,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517229973] [2019-11-28 03:03:33,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:33,908 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:34,085 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-11-28 03:03:34,152 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:03:34,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:03:34,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:03:34,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:03:34,153 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:03:34,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:03:34,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:03:34,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2019-11-28 03:03:34,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:03:34,153 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:03:34,157 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 03:03:34,161 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 03:03:34,165 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 03:03:34,168 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 03:03:34,175 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 03:03:34,304 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-11-28 03:03:34,336 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 03:03:34,340 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 03:03:34,344 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 03:03:34,348 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 03:03:34,352 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 03:03:34,356 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 03:03:34,665 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:03:34,665 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 03:03:34,685 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 03:03:34,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:34,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:34,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:34,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:34,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:34,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:34,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,691 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 03:03:34,707 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 03:03:34,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:34,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:34,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:34,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:34,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:34,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:34,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:34,711 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) [2019-11-28 03:03:34,727 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 03:03:34,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:34,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:34,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:34,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:34,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:34,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:34,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,732 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) [2019-11-28 03:03:34,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:03:34,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:34,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:34,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:34,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:34,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:34,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,766 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) [2019-11-28 03:03:34,784 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 03:03:34,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:34,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:34,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:34,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:34,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:34,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,816 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:03:34,854 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 03:03:34,854 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. 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) [2019-11-28 03:03:34,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:34,870 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:03:34,871 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:03:34,871 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-28 03:03:34,883 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:03:34,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:34,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:03:34,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:34,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:03:34,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:34,940 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 03:03:34,941 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:03:34,941 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-28 03:03:34,963 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 18 states and 24 transitions. Complement of second has 4 states. [2019-11-28 03:03:34,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:03:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:03:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2019-11-28 03:03:34,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-28 03:03:34,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:34,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-28 03:03:34,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:34,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2019-11-28 03:03:34,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:34,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-28 03:03:34,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:34,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 23 transitions. [2019-11-28 03:03:34,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 03:03:34,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 03:03:34,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-28 03:03:34,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:03:34,973 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-28 03:03:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-28 03:03:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 03:03:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:03:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-11-28 03:03:34,977 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:03:34,977 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:03:34,978 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:03:34,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-11-28 03:03:34,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:34,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:34,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:34,983 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:34,983 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:03:34,983 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 225#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 226#L367 assume !(main_~length~0 < 1); 235#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 236#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 237#L371-3 assume !(main_~i~0 < main_~length~0); 240#L371-4 main_~j~0 := 0; 233#L374-3 assume !!(main_~j~0 < main_~length~0); 227#L375-3 [2019-11-28 03:03:34,991 INFO L796 eck$LassoCheckResult]: Loop: 227#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 228#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 227#L375-3 [2019-11-28 03:03:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2019-11-28 03:03:34,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:34,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609027183] [2019-11-28 03:03:34,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:35,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2019-11-28 03:03:35,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665616948] [2019-11-28 03:03:35,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:35,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2019-11-28 03:03:35,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505735272] [2019-11-28 03:03:35,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:35,218 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 03:03:35,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505735272] [2019-11-28 03:03:35,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:03:35,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:03:35,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430026564] [2019-11-28 03:03:35,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:03:35,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:03:35,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:03:35,271 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-11-28 03:03:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:03:35,358 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-28 03:03:35,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:03:35,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-11-28 03:03:35,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:35,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2019-11-28 03:03:35,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:03:35,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:03:35,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-11-28 03:03:35,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:03:35,366 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-28 03:03:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-11-28 03:03:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2019-11-28 03:03:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 03:03:35,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-28 03:03:35,369 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 03:03:35,369 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 03:03:35,369 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:03:35,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-28 03:03:35,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:35,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:35,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:35,371 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:35,371 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:03:35,371 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 288#L367 assume !(main_~length~0 < 1); 292#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 293#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 294#L371-3 assume !(main_~i~0 < main_~length~0); 298#L371-4 main_~j~0 := 0; 289#L374-3 assume !!(main_~j~0 < main_~length~0); 290#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 297#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 285#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 286#L374-3 assume !!(main_~j~0 < main_~length~0); 281#L375-3 [2019-11-28 03:03:35,371 INFO L796 eck$LassoCheckResult]: Loop: 281#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 282#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 281#L375-3 [2019-11-28 03:03:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,372 INFO L82 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2019-11-28 03:03:35,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548034383] [2019-11-28 03:03:35,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:35,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548034383] [2019-11-28 03:03:35,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357366314] [2019-11-28 03:03:35,471 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:03:35,527 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 03:03:35,527 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 03:03:35,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:03:35,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:35,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 03:03:35,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-11-28 03:03:35,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328961929] [2019-11-28 03:03:35,598 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:03:35,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2019-11-28 03:03:35,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169292969] [2019-11-28 03:03:35,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:35,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:03:35,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:03:35,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-28 03:03:35,669 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 6 states. [2019-11-28 03:03:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:03:35,772 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-11-28 03:03:35,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 03:03:35,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-11-28 03:03:35,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:35,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2019-11-28 03:03:35,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 03:03:35,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 03:03:35,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2019-11-28 03:03:35,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:03:35,777 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-28 03:03:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2019-11-28 03:03:35,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-28 03:03:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 03:03:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-28 03:03:35,781 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-28 03:03:35,781 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-28 03:03:35,782 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:03:35,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2019-11-28 03:03:35,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:03:35,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:35,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:35,786 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:35,786 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:03:35,786 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 392#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 393#L367 assume !(main_~length~0 < 1); 399#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 400#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 401#L371-3 assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 402#L371-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 403#L371-3 assume !(main_~i~0 < main_~length~0); 405#L371-4 main_~j~0 := 0; 396#L374-3 assume !!(main_~j~0 < main_~length~0); 397#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 404#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 394#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 395#L374-3 assume !!(main_~j~0 < main_~length~0); 388#L375-3 [2019-11-28 03:03:35,787 INFO L796 eck$LassoCheckResult]: Loop: 388#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 389#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 388#L375-3 [2019-11-28 03:03:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,787 INFO L82 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2019-11-28 03:03:35,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431456192] [2019-11-28 03:03:35,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,850 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2019-11-28 03:03:35,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942622335] [2019-11-28 03:03:35,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,869 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:35,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:35,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2019-11-28 03:03:35,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:35,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616196182] [2019-11-28 03:03:35,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:35,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:36,224 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-11-28 03:03:36,295 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:03:36,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:03:36,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:03:36,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:03:36,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:03:36,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:03:36,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:03:36,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2019-11-28 03:03:36,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:03:36,296 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:03:36,299 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 03:03:36,302 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 03:03:36,305 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 03:03:36,308 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 03:03:36,310 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 03:03:36,313 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 03:03:36,315 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 03:03:36,459 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-11-28 03:03:36,510 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 03:03:36,512 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 03:03:36,515 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 03:03:36,519 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 03:03:36,802 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:03:36,802 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 03:03:36,813 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 03:03:36,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,821 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 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 03:03:36,828 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 03:03:36,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:36,834 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 03:03:36,840 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 03:03:36,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:36,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:36,852 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) [2019-11-28 03:03:36,866 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 03:03:36,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,872 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) [2019-11-28 03:03:36,879 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 03:03:36,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,884 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) [2019-11-28 03:03:36,892 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 03:03:36,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,897 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) [2019-11-28 03:03:36,905 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 03:03:36,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:36,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,918 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:03:36,930 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 03:03:36,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:36,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:36,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,947 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 03:03:36,962 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 03:03:36,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:36,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:36,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:36,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:36,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:36,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:36,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:36,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:03:36,978 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:03:36,978 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:03:36,984 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:03:36,984 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:03:36,984 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:03:36,985 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2 Supporting invariants [] Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:37,000 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2019-11-28 03:03:37,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:03:37,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,068 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 03:03:37,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:03:37,069 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-28 03:03:37,094 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-28 03:03:37,095 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 03:03:37,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:03:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-28 03:03:37,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-28 03:03:37,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:37,096 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:03:37,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,156 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 03:03:37,157 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:03:37,157 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-28 03:03:37,170 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-28 03:03:37,171 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 03:03:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:03:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-28 03:03:37,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-28 03:03:37,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:37,173 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:03:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:37,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:03:37,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:37,230 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 03:03:37,231 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:03:37,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-28 03:03:37,256 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 23 states and 28 transitions. Complement of second has 6 states. [2019-11-28 03:03:37,256 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 03:03:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:03:37,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 03:03:37,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-28 03:03:37,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:37,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-28 03:03:37,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:37,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-28 03:03:37,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:37,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-11-28 03:03:37,261 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:03:37,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-28 03:03:37,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:03:37,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:03:37,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:03:37,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:03:37,262 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:03:37,262 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:03:37,262 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:03:37,262 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:03:37,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:03:37,262 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:03:37,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:03:37,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:03:37 BoogieIcfgContainer [2019-11-28 03:03:37,270 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:03:37,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:03:37,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:03:37,271 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:03:37,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:31" (3/4) ... [2019-11-28 03:03:37,276 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:03:37,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:03:37,278 INFO L168 Benchmark]: Toolchain (without parser) took 6668.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 957.7 MB in the beginning and 779.6 MB in the end (delta: 178.1 MB). Peak memory consumption was 356.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:03:37,279 INFO L168 Benchmark]: CDTParser took 0.21 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 03:03:37,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -96.0 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:03:37,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:03:37,281 INFO L168 Benchmark]: Boogie Preprocessor took 24.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:03:37,282 INFO L168 Benchmark]: RCFGBuilder took 352.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:03:37,283 INFO L168 Benchmark]: BuchiAutomizer took 5599.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 97.5 MB). Free memory was 1.0 GB in the beginning and 779.6 MB in the end (delta: 250.0 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:03:37,283 INFO L168 Benchmark]: Witness Printer took 5.50 ms. Allocated memory is still 1.2 GB. Free memory is still 779.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:03:37,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 625.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -96.0 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 352.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5599.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 97.5 MB). Free memory was 1.0 GB in the beginning and 779.6 MB in the end (delta: 250.0 MB). Peak memory consumption was 347.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.50 ms. Allocated memory is still 1.2 GB. Free memory is still 779.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 110 SDslu, 43 SDs, 0 SdLazy, 109 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf99 lsp95 ukn78 mio100 lsp60 div100 bol100 ite100 ukn100 eq157 hnf87 smp93 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...