./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/array-memsafety/openbsd_cmemchr-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash f10d5178d15d886f7ae857469faf20c98bafd5fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:53:10,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:53:10,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:53:10,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:53:10,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:53:10,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:53:10,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:53:10,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:53:10,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:53:10,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:53:10,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:53:10,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:53:10,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:53:10,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:53:10,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:53:10,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:53:10,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:53:10,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:53:10,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:53:10,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:53:10,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:53:10,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:53:10,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:53:10,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:53:10,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:53:10,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:53:10,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:53:10,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:53:10,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:53:10,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:53:10,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:53:10,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:53:10,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:53:10,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:53:10,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:53:10,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:53:10,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:53:10,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:53:10,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:53:10,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:53:10,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:53:10,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:53:10,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:53:10,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:53:10,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:53:10,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:53:10,323 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:53:10,323 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:53:10,323 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:53:10,323 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:53:10,324 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:53:10,324 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:53:10,324 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:53:10,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:53:10,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:53:10,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:53:10,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:53:10,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:53:10,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:53:10,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:53:10,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:53:10,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:53:10,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:53:10,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:53:10,327 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:53:10,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:53:10,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:53:10,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:53:10,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:53:10,329 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:53:10,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:53:10,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:53:10,330 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:53:10,331 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:53:10,331 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f10d5178d15d886f7ae857469faf20c98bafd5fa [2019-11-28 03:53:10,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:53:10,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:53:10,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:53:10,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:53:10,681 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:53:10,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-11-28 03:53:10,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbd9f7ca2/9dfaae9eddcd4bb7a364a7d186b32555/FLAG274968794 [2019-11-28 03:53:11,181 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:53:11,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-11-28 03:53:11,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbd9f7ca2/9dfaae9eddcd4bb7a364a7d186b32555/FLAG274968794 [2019-11-28 03:53:11,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbd9f7ca2/9dfaae9eddcd4bb7a364a7d186b32555 [2019-11-28 03:53:11,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:53:11,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:53:11,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:11,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:53:11,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:53:11,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:11" (1/1) ... [2019-11-28 03:53:11,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbd7332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:11, skipping insertion in model container [2019-11-28 03:53:11,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:11" (1/1) ... [2019-11-28 03:53:11,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:53:11,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:53:12,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:12,061 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:53:12,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:12,164 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:53:12,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12 WrapperNode [2019-11-28 03:53:12,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:12,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:12,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:53:12,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:53:12,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:12,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:53:12,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:53:12,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:53:12,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (1/1) ... [2019-11-28 03:53:12,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:53:12,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:53:12,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:53:12,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:53:12,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (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 03:53:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:53:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:53:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:53:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:53:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:53:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:53:12,821 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:53:12,822 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 03:53:12,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:12 BoogieIcfgContainer [2019-11-28 03:53:12,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:53:12,824 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:53:12,825 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:53:12,831 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:53:12,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:12,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:53:11" (1/3) ... [2019-11-28 03:53:12,835 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17ecf65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:12, skipping insertion in model container [2019-11-28 03:53:12,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:12,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:12" (2/3) ... [2019-11-28 03:53:12,836 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17ecf65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:12, skipping insertion in model container [2019-11-28 03:53:12,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:12,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:12" (3/3) ... [2019-11-28 03:53:12,840 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-2.i [2019-11-28 03:53:12,906 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:53:12,907 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:53:12,907 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:53:12,907 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:53:12,909 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:53:12,909 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:53:12,909 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:53:12,909 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:53:12,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 03:53:12,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:12,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:12,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:12,965 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:53:12,965 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:12,966 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:53:12,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 03:53:12,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:12,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:12,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:12,968 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:53:12,968 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:12,976 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 17#L529true assume !(main_~length~0 < 1); 20#L529-2true assume !(main_~n~0 < 1); 14#L532-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 8#L537-3true [2019-11-28 03:53:12,977 INFO L796 eck$LassoCheckResult]: Loop: 8#L537-3true assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 7#L537-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 8#L537-3true [2019-11-28 03:53:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:12,983 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 03:53:12,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:12,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592231137] [2019-11-28 03:53:12,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-28 03:53:13,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:13,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799869141] [2019-11-28 03:53:13,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-28 03:53:13,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:13,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996596177] [2019-11-28 03:53:13,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:13,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:13,520 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-11-28 03:53:13,578 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:13,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:13,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:13,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:13,579 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:13,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:13,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:13,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:13,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration1_Lasso [2019-11-28 03:53:13,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:13,580 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:13,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:13,612 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 03:53:13,621 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 03:53:13,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:13,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:13,632 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 03:53:13,634 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 03:53:13,639 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 03:53:13,644 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 03:53:13,649 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 03:53:13,655 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 03:53:13,666 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 03:53:13,669 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 03:53:13,681 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 03:53:13,834 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 03:53:14,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:14,125 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,134 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 03:53:14,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,155 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:14,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:14,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,178 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 03:53:14,193 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 03:53:14,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,199 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 03:53:14,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,210 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 03:53:14,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,217 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,236 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 03:53:14,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,243 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 03:53:14,261 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 03:53:14,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,267 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 03:53:14,282 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 03:53:14,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,293 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) [2019-11-28 03:53:14,310 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 03:53:14,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,333 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 03:53:14,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,350 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 03:53:14,362 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 03:53:14,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,374 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 03:53:14,383 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 03:53:14,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,393 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 03:53:14,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:14,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,418 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 03:53:14,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:14,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:14,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:14,441 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 03:53:14,451 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 03:53:14,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,468 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 03:53:14,483 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 03:53:14,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:14,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:14,487 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 03:53:14,489 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 03:53:14,498 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,519 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 03:53:14,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,527 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,542 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 03:53:14,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:14,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:14,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:14,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:14,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:14,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:14,566 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:14,599 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-28 03:53:14,599 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:14,622 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:53:14,637 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:53:14,638 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:14,639 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetArea~0.offset >= 0] [2019-11-28 03:53:14,664 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-11-28 03:53:14,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:53:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:14,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:53:14,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:14,759 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:53:14,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:14,785 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 03:53:14,804 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 03:53:14,805 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-11-28 03:53:14,922 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 39 states and 56 transitions. Complement of second has 8 states. [2019-11-28 03:53:14,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:53:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:53:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2019-11-28 03:53:14,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 03:53:14,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:14,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:53:14,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:14,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-28 03:53:14,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:14,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 56 transitions. [2019-11-28 03:53:14,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:14,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 14 states and 18 transitions. [2019-11-28 03:53:14,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 03:53:14,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:14,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2019-11-28 03:53:14,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:14,960 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-28 03:53:14,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2019-11-28 03:53:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 03:53:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 03:53:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2019-11-28 03:53:14,995 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-28 03:53:14,996 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-28 03:53:14,996 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:53:14,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2019-11-28 03:53:14,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:14,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:14,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:14,999 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:15,000 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:53:15,000 INFO L794 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 135#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 136#L529 assume !(main_~length~0 < 1); 140#L529-2 assume !(main_~n~0 < 1); 138#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 133#L537-3 assume !(main_~i~0 < main_~n~0); 134#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 127#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 128#L518-4 [2019-11-28 03:53:15,001 INFO L796 eck$LassoCheckResult]: Loop: 128#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 130#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 139#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 129#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 128#L518-4 [2019-11-28 03:53:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:15,001 INFO L82 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2019-11-28 03:53:15,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:15,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475930628] [2019-11-28 03:53:15,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:15,140 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 03:53:15,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475930628] [2019-11-28 03:53:15,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:53:15,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:53:15,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20463512] [2019-11-28 03:53:15,151 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:53:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:15,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 1 times [2019-11-28 03:53:15,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:15,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778231442] [2019-11-28 03:53:15,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,211 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:15,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:15,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 03:53:15,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 03:53:15,287 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-11-28 03:53:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:15,328 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-28 03:53:15,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 03:53:15,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-28 03:53:15,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:15,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2019-11-28 03:53:15,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:53:15,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:15,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2019-11-28 03:53:15,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:15,334 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-28 03:53:15,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2019-11-28 03:53:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-28 03:53:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 03:53:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-28 03:53:15,338 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-28 03:53:15,338 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-28 03:53:15,338 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:53:15,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-11-28 03:53:15,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:15,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:15,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:15,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:15,342 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:53:15,342 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 171#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 172#L529 assume !(main_~length~0 < 1); 176#L529-2 assume !(main_~n~0 < 1); 174#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 169#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 167#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 168#L537-3 assume !(main_~i~0 < main_~n~0); 170#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 165#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 164#L518-4 [2019-11-28 03:53:15,342 INFO L796 eck$LassoCheckResult]: Loop: 164#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 166#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 175#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 163#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 164#L518-4 [2019-11-28 03:53:15,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:15,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1596934864, now seen corresponding path program 1 times [2019-11-28 03:53:15,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:15,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767809985] [2019-11-28 03:53:15,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 2 times [2019-11-28 03:53:15,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:15,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334534899] [2019-11-28 03:53:15,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:15,459 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:15,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:15,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1308516218, now seen corresponding path program 1 times [2019-11-28 03:53:15,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:15,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308886999] [2019-11-28 03:53:15,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:53:15,633 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 03:53:15,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308886999] [2019-11-28 03:53:15,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624506050] [2019-11-28 03:53:15,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:53:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:15,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-28 03:53:15,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:15,765 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 03:53:15,770 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:15,778 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:15,779 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:53:15,779 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-28 03:53:15,921 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-11-28 03:53:15,922 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:15,927 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:15,928 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:53:15,928 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2019-11-28 03:53:15,951 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 03:53:15,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:53:15,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-11-28 03:53:15,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695508055] [2019-11-28 03:53:16,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:16,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-28 03:53:16,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-11-28 03:53:16,020 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 14 states. [2019-11-28 03:53:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:16,444 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-28 03:53:16,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 03:53:16,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 32 transitions. [2019-11-28 03:53:16,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:16,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 17 states and 19 transitions. [2019-11-28 03:53:16,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:53:16,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:16,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2019-11-28 03:53:16,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:16,450 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-28 03:53:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2019-11-28 03:53:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 03:53:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:53:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-28 03:53:16,453 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-28 03:53:16,454 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-28 03:53:16,454 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:53:16,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2019-11-28 03:53:16,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:53:16,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:16,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:16,457 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:16,457 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:53:16,458 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 288#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 289#L529 assume !(main_~length~0 < 1); 293#L529-2 assume !(main_~n~0 < 1); 291#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 285#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 283#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 284#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 286#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 294#L537-3 assume !(main_~i~0 < main_~n~0); 287#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 279#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 280#L518-4 [2019-11-28 03:53:16,458 INFO L796 eck$LassoCheckResult]: Loop: 280#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 282#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 292#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 281#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 280#L518-4 [2019-11-28 03:53:16,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:16,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1352797870, now seen corresponding path program 2 times [2019-11-28 03:53:16,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:16,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629245601] [2019-11-28 03:53:16,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:16,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:16,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 3 times [2019-11-28 03:53:16,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:16,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191682066] [2019-11-28 03:53:16,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:16,566 INFO L82 PathProgramCache]: Analyzing trace with hash -24116136, now seen corresponding path program 2 times [2019-11-28 03:53:16,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:16,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936348785] [2019-11-28 03:53:16,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:16,663 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:16,985 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-11-28 03:53:17,079 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:17,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:17,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:17,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:17,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:17,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:17,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:17,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:17,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration4_Lasso [2019-11-28 03:53:17,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:17,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:17,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:17,089 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 03:53:17,091 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 03:53:17,094 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 03:53:17,096 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 03:53:17,098 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 03:53:17,101 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 03:53:17,103 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 03:53:17,105 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 03:53:17,106 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 03:53:17,108 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 03:53:17,111 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 03:53:17,113 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 03:53:17,115 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 03:53:17,117 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 03:53:17,120 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 03:53:17,121 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 03:53:17,253 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-28 03:53:17,332 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 03:53:17,335 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 03:53:17,338 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 03:53:17,341 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 03:53:17,950 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:17,950 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:17,963 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 03:53:17,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:17,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:17,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:17,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:17,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:17,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:17,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:17,967 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) [2019-11-28 03:53:17,979 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 03:53:17,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:17,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:17,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:17,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:17,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:17,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:17,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:17,983 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 03:53:17,989 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 03:53:17,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:17,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:17,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:17,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:17,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:17,993 INFO L402 nArgumentSynthesizer]: A total of 2 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 03:53:17,997 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 03:53:18,009 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 03:53:18,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,012 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 03:53:18,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,019 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 03:53:18,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:18,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,030 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 [2019-11-28 03:53:18,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:18,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:18,037 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 03:53:18,049 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 03:53:18,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,052 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:18,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:18,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,076 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 03:53:18,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,084 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 03:53:18,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,097 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 03:53:18,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:18,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:18,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,112 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 03:53:18,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:18,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,123 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 03:53:18,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:18,129 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,150 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 03:53:18,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,156 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,166 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 03:53:18,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:18,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:18,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,185 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 03:53:18,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:18,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:18,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:18,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,201 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 03:53:18,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:18,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:18,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:18,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:18,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:18,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:18,241 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:18,279 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 03:53:18,279 INFO L444 ModelExtractionUtils]: 24 out of 37 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:18,287 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:18,290 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:18,290 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:18,290 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2, ULTIMATE.start_cmemchr_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2 - 1*ULTIMATE.start_cmemchr_~p~0.offset Supporting invariants [] [2019-11-28 03:53:18,303 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:53:18,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:53:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:18,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:53:18,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:18,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 03:53:18,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:18,429 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 03:53:18,429 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-28 03:53:18,429 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand 5 states. [2019-11-28 03:53:18,487 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 22 transitions. Complement of second has 6 states. [2019-11-28 03:53:18,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:53:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:53:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-11-28 03:53:18,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-28 03:53:18,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:18,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-28 03:53:18,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:18,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2019-11-28 03:53:18,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:18,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2019-11-28 03:53:18,492 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:18,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-28 03:53:18,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:53:18,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:53:18,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:53:18,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:18,493 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:18,493 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:18,494 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:18,494 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:53:18,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:53:18,494 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:18,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:53:18,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:53:18 BoogieIcfgContainer [2019-11-28 03:53:18,500 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:53:18,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:53:18,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:53:18,501 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:53:18,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:12" (3/4) ... [2019-11-28 03:53:18,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:53:18,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:53:18,507 INFO L168 Benchmark]: Toolchain (without parser) took 6990.71 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 322.4 MB). Free memory was 952.3 MB in the beginning and 1.3 GB in the end (delta: -340.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:18,507 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:18,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:18,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:18,509 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:18,509 INFO L168 Benchmark]: RCFGBuilder took 563.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:18,510 INFO L168 Benchmark]: BuchiAutomizer took 5675.61 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -196.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:18,510 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:18,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 648.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 563.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5675.61 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -196.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.69 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * p and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 45 SDtfs, 94 SDslu, 106 SDs, 0 SdLazy, 130 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital126 mio100 ax115 hnf98 lsp80 ukn84 mio100 lsp58 div127 bol100 ite100 ukn100 eq173 hnf81 smp97 dnf100 smp100 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms 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...