./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncpy_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_malloc.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 7c56c09a74d2fc3893706afbe8a4ee36044dd617 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:43:26,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:43:26,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:43:26,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:43:26,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:43:26,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:43:26,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:43:26,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:43:26,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:43:26,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:43:26,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:43:26,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:43:26,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:43:26,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:43:26,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:43:26,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:43:26,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:43:26,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:43:26,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:43:26,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:43:26,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:43:26,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:43:26,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:43:26,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:43:26,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:43:26,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:43:26,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:43:26,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:43:26,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:43:26,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:43:26,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:43:26,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:43:26,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:43:26,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:43:26,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:43:26,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:43:26,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:43:26,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:43:26,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:43:26,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:43:26,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:43:26,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:43:26,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:43:26,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:43:26,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:43:26,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:43:26,526 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:43:26,526 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:43:26,526 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:43:26,526 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:43:26,526 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:43:26,527 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:43:26,527 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:43:26,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:43:26,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:43:26,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:43:26,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:43:26,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:43:26,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:43:26,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:43:26,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:43:26,528 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:43:26,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:43:26,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:43:26,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:43:26,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:43:26,529 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:43:26,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:43:26,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:43:26,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:43:26,530 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:43:26,531 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:43:26,531 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 -> 7c56c09a74d2fc3893706afbe8a4ee36044dd617 [2020-10-20 06:43:26,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:43:26,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:43:26,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:43:26,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:43:26,809 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:43:26,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncpy_malloc.i [2020-10-20 06:43:26,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07088363/e3bc16690e514ac7b0f0d62c04c87c41/FLAGae1be9e0d [2020-10-20 06:43:27,413 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:43:27,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncpy_malloc.i [2020-10-20 06:43:27,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07088363/e3bc16690e514ac7b0f0d62c04c87c41/FLAGae1be9e0d [2020-10-20 06:43:27,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07088363/e3bc16690e514ac7b0f0d62c04c87c41 [2020-10-20 06:43:27,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:43:27,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:43:27,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:27,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:43:27,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:43:27,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:27" (1/1) ... [2020-10-20 06:43:27,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfc96d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:27, skipping insertion in model container [2020-10-20 06:43:27,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:27" (1/1) ... [2020-10-20 06:43:27,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:43:27,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:43:28,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:28,048 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:43:28,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:28,197 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:43:28,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28 WrapperNode [2020-10-20 06:43:28,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:28,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:28,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:43:28,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:43:28,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:28,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:43:28,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:43:28,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:43:28,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (1/1) ... [2020-10-20 06:43:28,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:43:28,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:43:28,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:43:28,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:43:28,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (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 [2020-10-20 06:43:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:43:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:43:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:43:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:43:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:43:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:43:28,865 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:43:28,865 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 06:43:28,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:28 BoogieIcfgContainer [2020-10-20 06:43:28,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:43:28,867 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:43:28,868 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:43:28,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:43:28,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:28,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:43:27" (1/3) ... [2020-10-20 06:43:28,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@402f6e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:28, skipping insertion in model container [2020-10-20 06:43:28,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:28,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:28" (2/3) ... [2020-10-20 06:43:28,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@402f6e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:28, skipping insertion in model container [2020-10-20 06:43:28,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:28,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:28" (3/3) ... [2020-10-20 06:43:28,877 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncpy_malloc.i [2020-10-20 06:43:28,939 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:43:28,940 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:43:28,940 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:43:28,940 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:43:28,941 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:43:28,941 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:43:28,941 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:43:28,941 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:43:28,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 06:43:28,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 06:43:28,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:28,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:28,997 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:43:28,998 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:43:28,998 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:43:28,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 06:43:29,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 06:43:29,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:29,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:29,002 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:43:29,002 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:43:29,013 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 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.allocOnHeap(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.allocOnHeap(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 + (main_~length~0 - 1), 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 [2020-10-20 06:43:29,013 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, 1 + cstrncpy_#t~post206.offset;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, 1 + cstrncpy_#t~post207.offset;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~post207.base, cstrncpy_#t~post207.offset;havoc cstrncpy_#t~mem208; 14#L370-2true [2020-10-20 06:43:29,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:29,022 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-20 06:43:29,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:29,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826928778] [2020-10-20 06:43:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:29,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:29,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1747, now seen corresponding path program 1 times [2020-10-20 06:43:29,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:29,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210532221] [2020-10-20 06:43:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:29,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935768, now seen corresponding path program 1 times [2020-10-20 06:43:29,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:29,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209394872] [2020-10-20 06:43:29,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:29,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:29,412 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:29,531 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-20 06:43:30,004 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-20 06:43:30,173 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-20 06:43:30,187 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:43:30,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:43:30,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:43:30,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:43:30,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:43:30,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:30,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:43:30,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:43:30,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_malloc.i_Iteration1_Lasso [2020-10-20 06:43:30,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:43:30,191 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:43:30,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,612 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-20 06:43:30,779 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-20 06:43:30,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:30,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:31,728 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-10-20 06:43:31,897 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:43:31,903 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 [2020-10-20 06:43:31,908 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 [2020-10-20 06:43:31,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:31,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:31,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:31,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:31,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:31,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:31,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:31,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:31,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:31,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:31,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:31,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:31,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:31,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:31,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:31,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:31,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:31,976 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 [2020-10-20 06:43:31,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:31,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:31,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:31,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:31,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:31,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:31,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:31,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:43:32,008 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 [2020-10-20 06:43:32,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:32,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:32,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:32,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:32,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:32,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:32,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:32,064 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 [2020-10-20 06:43:32,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:32,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:32,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:32,075 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:43:32,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:32,081 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:43:32,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:32,086 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) [2020-10-20 06:43:32,109 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 [2020-10-20 06:43:32,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:32,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:32,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:32,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:32,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:32,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:32,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:43:32,172 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-20 06:43:32,173 INFO L444 ModelExtractionUtils]: 25 out of 34 variables were initially zero. Simplification set additionally 7 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) [2020-10-20 06:43:32,190 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 [2020-10-20 06:43:32,194 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:43:32,194 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:43:32,195 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2020-10-20 06:43:32,377 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-10-20 06:43:32,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:32,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:43:32,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:32,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:43:32,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:43:32,536 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 [2020-10-20 06:43:32,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2020-10-20 06:43:32,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2020-10-20 06:43:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:43:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:43:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-10-20 06:43:32,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 06:43:32,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:32,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 06:43:32,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:32,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-20 06:43:32,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:32,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2020-10-20 06:43:32,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:43:32,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2020-10-20 06:43:32,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-20 06:43:32,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-20 06:43:32,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-10-20 06:43:32,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:43:32,612 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-20 06:43:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-10-20 06:43:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-10-20 06:43:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 06:43:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-10-20 06:43:32,645 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 06:43:32,645 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 06:43:32,645 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:43:32,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-10-20 06:43:32,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:43:32,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:32,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:32,647 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:43:32,647 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:43:32,648 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#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; 145#L385 assume !(main_~length~0 < 1); 150#L385-2 assume !(main_~n~0 < 1); 148#L388-1 call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnHeap(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.allocOnHeap(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 + (main_~length~0 - 1), 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; 149#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, 1 + cstrncpy_#t~post206.offset;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, 1 + cstrncpy_#t~post207.offset;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); 141#L372 assume 0 == cstrncpy_#t~mem208;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset;havoc cstrncpy_#t~mem208;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 143#L375-3 [2020-10-20 06:43:32,648 INFO L796 eck$LassoCheckResult]: Loop: 143#L375-3 cstrncpy_#t~post209 := cstrncpy_~n2~0;cstrncpy_~n2~0 := cstrncpy_#t~post209 - 1; 146#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, 1 + cstrncpy_#t~post210.offset;call write~int(0, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, 1);havoc cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset; 143#L375-3 [2020-10-20 06:43:32,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935753, now seen corresponding path program 1 times [2020-10-20 06:43:32,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:32,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752259083] [2020-10-20 06:43:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,673 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,697 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:32,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:32,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2020-10-20 06:43:32,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:32,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764070076] [2020-10-20 06:43:32,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:32,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1298472078, now seen corresponding path program 1 times [2020-10-20 06:43:32,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:32,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763301432] [2020-10-20 06:43:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:32,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:32,764 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:33,417 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 131 [2020-10-20 06:43:33,607 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-20 06:43:33,611 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:43:33,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:43:33,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:43:33,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:43:33,611 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:43:33,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:33,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:43:33,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:43:33,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_malloc.i_Iteration2_Lasso [2020-10-20 06:43:33,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:43:33,612 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:43:33,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:33,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:33,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,072 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-20 06:43:34,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:34,552 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-10-20 06:43:35,201 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-10-20 06:43:35,499 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:43:35,499 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 [2020-10-20 06:43:35,510 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 [2020-10-20 06:43:35,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:35,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:35,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:35,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:35,539 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 [2020-10-20 06:43:35,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:35,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:35,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:35,542 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 [2020-10-20 06:43:35,569 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 [2020-10-20 06:43:35,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:35,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:35,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:43:35,581 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) [2020-10-20 06:43:35,624 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 [2020-10-20 06:43:35,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:35,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:35,633 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 [2020-10-20 06:43:35,656 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 [2020-10-20 06:43:35,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,658 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-10-20 06:43:35,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,676 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:43:35,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:35,707 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) [2020-10-20 06:43:35,765 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 [2020-10-20 06:43:35,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:35,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:35,780 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) [2020-10-20 06:43:35,819 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 [2020-10-20 06:43:35,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:35,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:35,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:35,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 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 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 [2020-10-20 06:43:35,864 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 [2020-10-20 06:43:35,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:35,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:35,866 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:43:35,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:35,898 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-20 06:43:35,898 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:43:35,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:43:36,267 INFO L443 ModelExtractionUtils]: Simplification made 33 calls to the SMT solver. [2020-10-20 06:43:36,268 INFO L444 ModelExtractionUtils]: 50 out of 91 variables were initially zero. Simplification set additionally 38 variables to zero. 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) [2020-10-20 06:43:36,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:36,283 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-10-20 06:43:36,283 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:43:36,283 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~us~0.offset, v_rep(select #length ULTIMATE.start_cstrncpy_~us~0.base)_1) = -1*ULTIMATE.start_cstrncpy_~us~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrncpy_~us~0.base)_1 Supporting invariants [] [2020-10-20 06:43:36,365 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2020-10-20 06:43:36,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:43:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:36,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:43:36,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:36,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:43:36,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:43:36,431 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 [2020-10-20 06:43:36,431 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 06:43:36,443 INFO L75 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. [2020-10-20 06:43:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:43:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:43:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-20 06:43:36,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 06:43:36,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:36,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-20 06:43:36,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:36,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-20 06:43:36,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:36,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2020-10-20 06:43:36,448 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:43:36,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-10-20 06:43:36,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:43:36,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:43:36,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:43:36,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:43:36,449 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:36,450 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:36,451 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:36,451 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:43:36,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:43:36,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:43:36,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:43:36,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:43:36 BoogieIcfgContainer [2020-10-20 06:43:36,462 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:43:36,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:43:36,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:43:36,463 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:43:36,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:28" (3/4) ... [2020-10-20 06:43:36,466 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:43:36,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:43:36,469 INFO L168 Benchmark]: Toolchain (without parser) took 8794.82 ms. Allocated memory was 43.5 MB in the beginning and 91.2 MB in the end (delta: 47.7 MB). Free memory was 23.5 MB in the beginning and 45.1 MB in the end (delta: -21.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,471 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 32.5 MB. Free memory was 11.7 MB in the beginning and 11.6 MB in the end (delta: 48.2 kB). Peak memory consumption was 48.2 kB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.57 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.6 MB in the beginning and 28.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.63 ms. Allocated memory is still 45.6 MB. Free memory was 28.1 MB in the beginning and 26.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,479 INFO L168 Benchmark]: Boogie Preprocessor took 47.17 ms. Allocated memory is still 45.6 MB. Free memory was 26.2 MB in the beginning and 24.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,480 INFO L168 Benchmark]: RCFGBuilder took 547.99 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 24.5 MB in the beginning and 26.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,481 INFO L168 Benchmark]: BuchiAutomizer took 7594.31 ms. Allocated memory was 46.1 MB in the beginning and 91.2 MB in the end (delta: 45.1 MB). Free memory was 26.1 MB in the beginning and 46.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,486 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 91.2 MB. Free memory was 46.2 MB in the beginning and 45.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:36,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 32.5 MB. Free memory was 11.7 MB in the beginning and 11.6 MB in the end (delta: 48.2 kB). Peak memory consumption was 48.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 519.57 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.6 MB in the beginning and 28.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 71.63 ms. Allocated memory is still 45.6 MB. Free memory was 28.1 MB in the beginning and 26.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 47.17 ms. Allocated memory is still 45.6 MB. Free memory was 26.2 MB in the beginning and 24.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 547.99 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 24.5 MB in the beginning and 26.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 7594.31 ms. Allocated memory was 46.1 MB in the beginning and 91.2 MB in the end (delta: 45.1 MB). Free memory was 26.1 MB in the beginning and 46.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.3 GB. * Witness Printer took 4.54 ms. Allocated memory is still 91.2 MB. Free memory was 46.2 MB in the beginning and 45.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 -1 * us + unknown-#length-unknown[us] and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 7.1s. 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: inital238 mio100 ax100 hnf99 lsp97 ukn89 mio100 lsp39 div100 bol100 ite100 ukn100 eq199 hnf89 smp97 dnf232 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 424ms VariablesStem: 17 VariablesLoop: 11 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...