./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd1d6be80620224d07434e02e12c771f8c62f3e2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:56:46,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:56:46,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:56:46,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:56:46,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:56:46,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:56:46,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:56:46,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:56:46,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:56:46,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:56:46,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:56:46,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:56:46,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:56:46,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:56:46,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:56:46,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:56:46,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:56:46,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:56:46,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:56:46,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:56:46,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:56:46,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:56:46,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:56:46,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:56:46,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:56:46,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:56:46,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:56:46,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:56:46,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:56:46,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:56:46,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:56:46,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:56:46,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:56:46,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:56:46,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:56:46,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:56:46,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:56:46,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:56:46,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:56:46,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:56:46,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:56:46,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 19:56:46,373 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:56:46,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:56:46,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:56:46,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:56:46,375 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:56:46,376 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 19:56:46,376 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 19:56:46,376 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 19:56:46,376 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 19:56:46,376 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 19:56:46,377 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 19:56:46,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:56:46,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:56:46,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:56:46,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:56:46,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 19:56:46,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 19:56:46,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 19:56:46,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:56:46,379 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 19:56:46,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:56:46,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 19:56:46,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:56:46,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:56:46,380 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 19:56:46,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:56:46,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:56:46,380 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 19:56:46,381 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 19:56:46,382 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd1d6be80620224d07434e02e12c771f8c62f3e2 [2019-11-19 19:56:46,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:56:46,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:56:46,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:56:46,697 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:56:46,698 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:56:46,698 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2019-11-19 19:56:46,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214f29674/cf07ad1fe9ae4ce18b8c51d55b7d5570/FLAG8d6ae2cea [2019-11-19 19:56:47,303 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:56:47,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncpy_reverse_alloca.i [2019-11-19 19:56:47,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214f29674/cf07ad1fe9ae4ce18b8c51d55b7d5570/FLAG8d6ae2cea [2019-11-19 19:56:47,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/214f29674/cf07ad1fe9ae4ce18b8c51d55b7d5570 [2019-11-19 19:56:47,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:56:47,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:56:47,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:56:47,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:56:47,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:56:47,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:47" (1/1) ... [2019-11-19 19:56:47,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36be5ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:47, skipping insertion in model container [2019-11-19 19:56:47,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:47" (1/1) ... [2019-11-19 19:56:47,614 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:56:47,663 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:56:48,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:56:48,144 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:56:48,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:56:48,263 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:56:48,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48 WrapperNode [2019-11-19 19:56:48,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:56:48,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:56:48,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:56:48,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:56:48,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:56:48,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:56:48,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:56:48,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:56:48,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (1/1) ... [2019-11-19 19:56:48,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:56:48,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:56:48,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:56:48,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:56:48,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (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 [2019-11-19 19:56:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 19:56:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 19:56:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:56:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:56:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:56:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:56:48,734 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:56:48,734 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 19:56:48,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:48 BoogieIcfgContainer [2019-11-19 19:56:48,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:56:48,737 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 19:56:48,737 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 19:56:48,741 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 19:56:48,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:56:48,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:56:47" (1/3) ... [2019-11-19 19:56:48,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fa56093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:48, skipping insertion in model container [2019-11-19 19:56:48,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:56:48,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:48" (2/3) ... [2019-11-19 19:56:48,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fa56093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:48, skipping insertion in model container [2019-11-19 19:56:48,745 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:56:48,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:48" (3/3) ... [2019-11-19 19:56:48,747 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncpy_reverse_alloca.i [2019-11-19 19:56:48,802 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 19:56:48,803 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 19:56:48,803 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 19:56:48,803 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:56:48,804 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:56:48,804 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 19:56:48,804 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:56:48,804 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 19:56:48,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-19 19:56:48,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 19:56:48,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 19:56:48,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 19:56:48,849 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 19:56:48,849 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 19:56:48,849 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 19:56:48,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-19 19:56:48,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 19:56:48,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 19:56:48,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 19:56:48,852 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 19:56:48,852 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 19:56:48,858 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 5#L385true assume !(main_~length~0 < 1); 7#L385-2true assume !(main_~n~0 < 1); 3#L388-1true call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset + (main_~n~0 - 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 14#L370-2true [2019-11-19 19:56:48,859 INFO L796 eck$LassoCheckResult]: Loop: 14#L370-2true assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset - 1;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset - 1;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 9#L372true assume !(0 == cstrncpy_#t~mem208);havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset; 14#L370-2true [2019-11-19 19:56:48,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-19 19:56:48,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:48,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622451755] [2019-11-19 19:56:48,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:49,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1747, now seen corresponding path program 1 times [2019-11-19 19:56:49,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:49,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625107167] [2019-11-19 19:56:49,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,158 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:49,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935768, now seen corresponding path program 1 times [2019-11-19 19:56:49,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:49,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450631998] [2019-11-19 19:56:49,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:49,304 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:49,427 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-11-19 19:56:49,868 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-11-19 19:56:50,027 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-19 19:56:50,040 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 19:56:50,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 19:56:50,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 19:56:50,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 19:56:50,042 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 19:56:50,043 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:50,043 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 19:56:50,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 19:56:50,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration1_Lasso [2019-11-19 19:56:50,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 19:56:50,044 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 19:56:50,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,445 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-11-19 19:56:50,630 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-19 19:56:50,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:50,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:51,726 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-11-19 19:56:51,782 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 19:56:51,787 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 [2019-11-19 19:56:51,806 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 [2019-11-19 19:56:51,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:51,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:51,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:51,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Stream closed 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) [2019-11-19 19:56:51,837 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 [2019-11-19 19:56:51,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:51,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:51,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:51,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 3 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:51,853 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 [2019-11-19 19:56:51,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:51,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:51,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:51,859 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 [2019-11-19 19:56:51,882 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 [2019-11-19 19:56:51,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:56:51,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:56:51,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:56:51,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 19:56:51,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:56:51,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:51,917 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 [2019-11-19 19:56:51,925 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 [2019-11-19 19:56:51,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:51,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:51,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:51,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:51,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:56:51,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:56:51,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 19:56:52,089 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 19:56:52,089 INFO L444 ModelExtractionUtils]: 22 out of 34 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:56:52,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:52,137 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 19:56:52,137 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 19:56:52,138 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2019-11-19 19:56:52,177 INFO L297 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2019-11-19 19:56:52,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:56:52,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 19:56:52,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:56:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:56:52,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 19:56:52,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:56:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:56:52,312 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 [2019-11-19 19:56:52,313 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-19 19:56:52,376 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2019-11-19 19:56:52,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 19:56:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 19:56:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-11-19 19:56:52,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-19 19:56:52,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:52,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 19:56:52,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:52,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-19 19:56:52,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:52,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2019-11-19 19:56:52,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 19:56:52,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2019-11-19 19:56:52,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-19 19:56:52,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-19 19:56:52,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-19 19:56:52,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 19:56:52,411 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-19 19:56:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-19 19:56:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-19 19:56:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 19:56:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-19 19:56:52,447 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-19 19:56:52,449 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-19 19:56:52,450 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 19:56:52,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-19 19:56:52,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 19:56:52,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 19:56:52,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 19:56:52,453 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:56:52,453 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 19:56:52,454 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 133#L-1 havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 134#L385 assume !(main_~length~0 < 1); 138#L385-2 assume !(main_~n~0 < 1); 136#L388-1 call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset + (main_~n~0 - 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 137#L370-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset - 1;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset - 1;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 131#L372 assume 0 == cstrncpy_#t~mem208;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 129#L375-3 [2019-11-19 19:56:52,454 INFO L796 eck$LassoCheckResult]: Loop: 129#L375-3 cstrncpy_#t~post209 := cstrncpy_~n2~0;cstrncpy_~n2~0 := cstrncpy_#t~post209 - 1; 130#L375-1 assume !!(0 != cstrncpy_#t~post209);havoc cstrncpy_#t~post209;cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset := cstrncpy_~us~0.base, cstrncpy_~us~0.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset - 1;call write~int(0, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, 1);havoc cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset; 129#L375-3 [2019-11-19 19:56:52,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:52,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935753, now seen corresponding path program 1 times [2019-11-19 19:56:52,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:52,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498378435] [2019-11-19 19:56:52,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,543 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:52,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:52,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2019-11-19 19:56:52,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:52,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065668004] [2019-11-19 19:56:52,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,555 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:52,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:52,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1298472078, now seen corresponding path program 1 times [2019-11-19 19:56:52,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:56:52,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805976987] [2019-11-19 19:56:52,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:56:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:56:52,621 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:56:53,271 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2019-11-19 19:56:53,450 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-19 19:56:53,453 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 19:56:53,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 19:56:53,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 19:56:53,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 19:56:53,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 19:56:53,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:53,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 19:56:53,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 19:56:53,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_reverse_alloca.i_Iteration2_Lasso [2019-11-19 19:56:53,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 19:56:53,454 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 19:56:53,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:53,925 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-11-19 19:56:54,060 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-11-19 19:56:54,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:54,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:56:55,106 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-11-19 19:56:55,165 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 19:56:55,165 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,173 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 [2019-11-19 19:56:55,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:55,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:56:55,195 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 [2019-11-19 19:56:55,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,199 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,216 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 [2019-11-19 19:56:55,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:55,224 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) [2019-11-19 19:56:55,240 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 [2019-11-19 19:56:55,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,245 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 [2019-11-19 19:56:55,257 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 [2019-11-19 19:56:55,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:56:55,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:56:55,265 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 [2019-11-19 19:56:55,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 19:56:55,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:55,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,299 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 [2019-11-19 19:56:55,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:56:55,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:56:55,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:56:55,305 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 [2019-11-19 19:56:55,312 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 [2019-11-19 19:56:55,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:56:55,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:56:55,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:56:55,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:56:55,324 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) [2019-11-19 19:56:55,341 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 [2019-11-19 19:56:55,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:56:55,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:56:55,344 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-19 19:56:55,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,376 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-19 19:56:55,377 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-19 19:56:55,444 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 19:56:55,500 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-19 19:56:55,500 INFO L444 ModelExtractionUtils]: 47 out of 66 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:56:55,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 19:56:55,508 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-11-19 19:56:55,509 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 19:56:55,509 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~us~0.offset) = 2*ULTIMATE.start_cstrncpy_~us~0.offset + 1 Supporting invariants [] [2019-11-19 19:56:55,554 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2019-11-19 19:56:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:56:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:56:55,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 19:56:55,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:56:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:56:55,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 19:56:55,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:56:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:56:55,606 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 19:56:55,606 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-19 19:56:55,613 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 16 transitions. Complement of second has 4 states. [2019-11-19 19:56:55,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 19:56:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 19:56:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-19 19:56:55,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 19:56:55,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:55,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-19 19:56:55,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:55,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-19 19:56:55,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:56:55,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2019-11-19 19:56:55,616 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 19:56:55,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-11-19 19:56:55,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 19:56:55,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 19:56:55,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 19:56:55,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 19:56:55,617 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:56:55,617 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:56:55,617 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:56:55,617 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 19:56:55,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:56:55,618 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 19:56:55,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 19:56:55,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:56:55 BoogieIcfgContainer [2019-11-19 19:56:55,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 19:56:55,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:56:55,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:56:55,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:56:55,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:48" (3/4) ... [2019-11-19 19:56:55,629 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 19:56:55,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:56:55,631 INFO L168 Benchmark]: Toolchain (without parser) took 8033.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.0 MB). Free memory was 957.7 MB in the beginning and 995.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 275.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:56:55,631 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:56:55,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-19 19:56:55,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.16 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. [2019-11-19 19:56:55,633 INFO L168 Benchmark]: Boogie Preprocessor took 32.24 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. [2019-11-19 19:56:55,634 INFO L168 Benchmark]: RCFGBuilder took 376.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:56:55,635 INFO L168 Benchmark]: BuchiAutomizer took 6886.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.3 MB). Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 93.2 MB). Peak memory consumption was 262.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:56:55,635 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 1.3 GB. Free memory is still 995.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:56:55,639 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 665.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.16 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 32.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 376.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6886.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 169.3 MB). Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 93.2 MB). Peak memory consumption was 262.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.05 ms. Allocated memory is still 1.3 GB. Free memory is still 995.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n and consists of 4 locations. One deterministic module has affine ranking function 2 * us + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 6.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 26 SDtfs, 26 SDslu, 9 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital242 mio100 ax100 hnf99 lsp97 ukn86 mio100 lsp34 div100 bol100 ite100 ukn100 eq197 hnf89 smp100 dnf232 smp97 tf100 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 182ms VariablesStem: 12 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...