./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/atoi.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_1.5.800.v20200727-1323.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-dietlibc/atoi.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 1255925dee057d326b7c0f37f3559424c7c269b2700f988720a0a296e5085160 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:25:18,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:25:18,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:25:18,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:25:18,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:25:18,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:25:18,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:25:18,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:25:18,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:25:18,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:25:18,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:25:18,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:25:18,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:25:18,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:25:18,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:25:18,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:25:18,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:25:18,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:25:18,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:25:18,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:25:18,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:25:18,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:25:18,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:25:18,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:25:18,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:25:18,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:25:18,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:25:18,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:25:18,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:25:18,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:25:18,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:25:18,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:25:18,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:25:18,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:25:18,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:25:18,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:25:18,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:25:18,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:25:18,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:25:18,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:25:18,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:25:18,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-16 09:25:18,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:25:18,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:25:18,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:25:18,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:25:18,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:25:18,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:25:18,413 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:25:18,417 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:25:18,417 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:25:18,417 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:25:18,417 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:25:18,417 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:25:18,417 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:25:18,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:25:18,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:25:18,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:25:18,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:25:18,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:25:18,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:25:18,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:25:18,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:25:18,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:25:18,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:25:18,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:25:18,421 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:25:18,421 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1255925dee057d326b7c0f37f3559424c7c269b2700f988720a0a296e5085160 [2021-12-16 09:25:18,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:25:18,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:25:18,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:25:18,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:25:18,654 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:25:18,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/atoi.i [2021-12-16 09:25:18,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0122c605/452cff5295df4ff9b60c1e3a8a07651b/FLAGb5aa50e10 [2021-12-16 09:25:19,104 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:25:19,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/atoi.i [2021-12-16 09:25:19,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0122c605/452cff5295df4ff9b60c1e3a8a07651b/FLAGb5aa50e10 [2021-12-16 09:25:19,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0122c605/452cff5295df4ff9b60c1e3a8a07651b [2021-12-16 09:25:19,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:25:19,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:25:19,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:25:19,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:25:19,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:25:19,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a30dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19, skipping insertion in model container [2021-12-16 09:25:19,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:25:19,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:25:19,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:25:19,738 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:25:19,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:25:19,786 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:25:19,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19 WrapperNode [2021-12-16 09:25:19,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:25:19,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:25:19,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:25:19,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:25:19,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,831 INFO L137 Inliner]: procedures = 113, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2021-12-16 09:25:19,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:25:19,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:25:19,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:25:19,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:25:19,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:25:19,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:25:19,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:25:19,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:25:19,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (1/1) ... [2021-12-16 09:25:19,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:19,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:25:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:25:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:25:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:25:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:25:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:25:19,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-16 09:25:19,990 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:25:19,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:25:20,137 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:25:20,142 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:25:20,143 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-16 09:25:20,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:25:20 BoogieIcfgContainer [2021-12-16 09:25:20,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:25:20,145 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:25:20,146 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:25:20,148 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:25:20,149 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:25:20,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:25:19" (1/3) ... [2021-12-16 09:25:20,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@553eab1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:25:20, skipping insertion in model container [2021-12-16 09:25:20,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:25:20,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:19" (2/3) ... [2021-12-16 09:25:20,151 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@553eab1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:25:20, skipping insertion in model container [2021-12-16 09:25:20,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:25:20,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:25:20" (3/3) ... [2021-12-16 09:25:20,152 INFO L388 chiAutomizerObserver]: Analyzing ICFG atoi.i [2021-12-16 09:25:20,188 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:25:20,188 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:25:20,188 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:25:20,188 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:25:20,189 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:25:20,189 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:25:20,189 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:25:20,189 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:25:20,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:20,215 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-12-16 09:25:20,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:25:20,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:25:20,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:25:20,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:25:20,221 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:25:20,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:20,225 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-12-16 09:25:20,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:25:20,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:25:20,225 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:25:20,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:25:20,230 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~ret17#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;main_~in_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 21#L522true assume !(main_~in_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 18#L524-3true [2021-12-16 09:25:20,231 INFO L793 eck$LassoCheckResult]: Loop: 18#L524-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1; 22#L524-2true main_#t~post15#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 18#L524-3true [2021-12-16 09:25:20,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-16 09:25:20,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:20,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923792590] [2021-12-16 09:25:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:20,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-12-16 09:25:20,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:20,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335906541] [2021-12-16 09:25:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:20,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,329 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:20,342 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-16 09:25:20,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094516641] [2021-12-16 09:25:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:20,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,360 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:20,376 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:20,546 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:25:20,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:25:20,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:25:20,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:25:20,547 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:25:20,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:20,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:25:20,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:25:20,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: atoi.i_Iteration1_Lasso [2021-12-16 09:25:20,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:25:20,548 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:25:20,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:20,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:25:20,843 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:25:20,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:20,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:20,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:20,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-16 09:25:20,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:20,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:20,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:25:20,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:20,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:20,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:20,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:25:20,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:25:20,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:25:20,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:20,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:20,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:20,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:20,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-16 09:25:20,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:20,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:20,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:20,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:20,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:20,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:25:20,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:25:20,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:25:20,947 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-16 09:25:20,947 INFO L444 ModelExtractionUtils]: 14 out of 22 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-16 09:25:20,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:20,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:20,953 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:25:20,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-16 09:25:20,974 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:25:20,974 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:25:20,975 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2021-12-16 09:25:20,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:20,998 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-16 09:25:21,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:25:21,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:25:21,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:25:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:25:21,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:25:21,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:25:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:25:21,090 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 [2021-12-16 09:25:21,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:21,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 87 transitions. Complement of second has 7 states. [2021-12-16 09:25:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-16 09:25:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2021-12-16 09:25:21,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-16 09:25:21,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:21,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-16 09:25:21,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:21,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-16 09:25:21,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:21,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2021-12-16 09:25:21,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-16 09:25:21,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 17 states and 23 transitions. [2021-12-16 09:25:21,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 09:25:21,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 09:25:21,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2021-12-16 09:25:21,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:25:21,154 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-12-16 09:25:21,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2021-12-16 09:25:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-16 09:25:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-12-16 09:25:21,171 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-12-16 09:25:21,171 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-12-16 09:25:21,171 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:25:21,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2021-12-16 09:25:21,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-16 09:25:21,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:25:21,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:25:21,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-16 09:25:21,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:25:21,172 INFO L791 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~ret17#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;main_~in_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 145#L522 assume !(main_~in_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 150#L524-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 151#L524-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_atoi } true;atoi_#in~s#1.base, atoi_#in~s#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc atoi_#res#1;havoc atoi_#t~post3#1.base, atoi_#t~post3#1.offset, atoi_#t~mem2#1, atoi_#t~mem4#1, atoi_#t~switch5#1, atoi_#t~pre6#1.base, atoi_#t~pre6#1.offset, atoi_#t~mem10#1, atoi_#t~pre11#1.base, atoi_#t~pre11#1.offset, atoi_#t~mem7#1, atoi_#t~mem8#1, atoi_#t~short9#1, atoi_#t~ite12#1, atoi_~s#1.base, atoi_~s#1.offset, atoi_~v~0#1, atoi_~sign~0#1;atoi_~s#1.base, atoi_~s#1.offset := atoi_#in~s#1.base, atoi_#in~s#1.offset;atoi_~v~0#1 := 0;atoi_~sign~0#1 := 1; 148#L510-3 [2021-12-16 09:25:21,172 INFO L793 eck$LassoCheckResult]: Loop: 148#L510-3 call atoi_#t~mem2#1 := read~int(atoi_~s#1.base, atoi_~s#1.offset, 1); 149#L510-1 assume !!(32 == atoi_#t~mem2#1);havoc atoi_#t~mem2#1;atoi_#t~post3#1.base, atoi_#t~post3#1.offset := atoi_~s#1.base, atoi_~s#1.offset;atoi_~s#1.base, atoi_~s#1.offset := atoi_#t~post3#1.base, 1 + atoi_#t~post3#1.offset;havoc atoi_#t~post3#1.base, atoi_#t~post3#1.offset; 148#L510-3 [2021-12-16 09:25:21,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,173 INFO L85 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2021-12-16 09:25:21,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716435217] [2021-12-16 09:25:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:21,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2021-12-16 09:25:21,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358740171] [2021-12-16 09:25:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,199 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1806941585, now seen corresponding path program 1 times [2021-12-16 09:25:21,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577642297] [2021-12-16 09:25:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:25:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:25:21,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:25:21,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577642297] [2021-12-16 09:25:21,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577642297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:25:21,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:25:21,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 09:25:21,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796768628] [2021-12-16 09:25:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:25:21,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:25:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 09:25:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:25:21,375 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:21,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:21,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:25:21,446 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-12-16 09:25:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:25:21,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-12-16 09:25:21,453 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-16 09:25:21,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 43 transitions. [2021-12-16 09:25:21,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-16 09:25:21,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-12-16 09:25:21,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 43 transitions. [2021-12-16 09:25:21,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:25:21,455 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-12-16 09:25:21,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 43 transitions. [2021-12-16 09:25:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 20. [2021-12-16 09:25:21,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-16 09:25:21,458 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-16 09:25:21,458 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-16 09:25:21,458 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:25:21,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-12-16 09:25:21,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-16 09:25:21,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:25:21,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:25:21,461 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:25:21,461 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:25:21,461 INFO L791 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 203#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~ret17#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;main_~in_len~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; 210#L522 assume !(main_~in_len~0#1 < 1);call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 216#L524-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1; 218#L524-2 main_#t~post15#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 219#L524-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 220#L524-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_atoi } true;atoi_#in~s#1.base, atoi_#in~s#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc atoi_#res#1;havoc atoi_#t~post3#1.base, atoi_#t~post3#1.offset, atoi_#t~mem2#1, atoi_#t~mem4#1, atoi_#t~switch5#1, atoi_#t~pre6#1.base, atoi_#t~pre6#1.offset, atoi_#t~mem10#1, atoi_#t~pre11#1.base, atoi_#t~pre11#1.offset, atoi_#t~mem7#1, atoi_#t~mem8#1, atoi_#t~short9#1, atoi_#t~ite12#1, atoi_~s#1.base, atoi_~s#1.offset, atoi_~v~0#1, atoi_~sign~0#1;atoi_~s#1.base, atoi_~s#1.offset := atoi_#in~s#1.base, atoi_#in~s#1.offset;atoi_~v~0#1 := 0;atoi_~sign~0#1 := 1; 213#L510-3 [2021-12-16 09:25:21,461 INFO L793 eck$LassoCheckResult]: Loop: 213#L510-3 call atoi_#t~mem2#1 := read~int(atoi_~s#1.base, atoi_~s#1.offset, 1); 214#L510-1 assume !!(32 == atoi_#t~mem2#1);havoc atoi_#t~mem2#1;atoi_#t~post3#1.base, atoi_#t~post3#1.offset := atoi_~s#1.base, atoi_~s#1.offset;atoi_~s#1.base, atoi_~s#1.offset := atoi_#t~post3#1.base, 1 + atoi_#t~post3#1.offset;havoc atoi_#t~post3#1.base, atoi_#t~post3#1.offset; 213#L510-3 [2021-12-16 09:25:21,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2021-12-16 09:25:21,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593568921] [2021-12-16 09:25:21,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,493 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 2 times [2021-12-16 09:25:21,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757237085] [2021-12-16 09:25:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,513 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1357243763, now seen corresponding path program 1 times [2021-12-16 09:25:21,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:25:21,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101721454] [2021-12-16 09:25:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:25:21,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:25:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:25:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:25:21,538 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:25:21,826 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:25:21,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:25:21,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:25:21,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:25:21,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:25:21,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:21,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:25:21,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:25:21,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: atoi.i_Iteration3_Lasso [2021-12-16 09:25:21,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:25:21,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:25:21,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:21,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:25:22,252 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:25:22,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:25:22,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-16 09:25:22,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:22,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:22,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:25:22,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:22,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:22,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:22,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:25:22,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:25:22,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:25:22,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:22,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-16 09:25:22,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:22,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:22,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:25:22,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:22,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:22,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:22,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:25:22,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:25:22,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:25:22,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:22,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,331 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-16 09:25:22,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:22,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:22,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:25:22,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:22,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:22,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:22,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:25:22,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:25:22,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:25:22,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:22,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,362 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-16 09:25:22,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:22,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:22,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:22,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:22,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:22,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:25:22,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:25:22,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:25:22,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-16 09:25:22,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-16 09:25:22,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:25:22,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:25:22,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:25:22,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:25:22,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:25:22,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:25:22,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:25:22,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:25:22,436 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-16 09:25:22,436 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-12-16 09:25:22,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:25:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:25:22,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:25:22,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-16 09:25:22,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:25:22,483 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:25:22,483 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:25:22,483 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2, ULTIMATE.start_atoi_~s#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2 - 1*ULTIMATE.start_atoi_~s#1.offset Supporting invariants [] [2021-12-16 09:25:22,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-16 09:25:22,520 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-12-16 09:25:22,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:25:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:25:22,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:25:22,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:25:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:25:22,586 WARN L261 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:25:22,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:25:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:25:22,602 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-16 09:25:22,602 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:22,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 49 transitions. Complement of second has 7 states. [2021-12-16 09:25:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-16 09:25:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:25:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-12-16 09:25:22,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-16 09:25:22,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:22,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-16 09:25:22,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:22,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-16 09:25:22,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:25:22,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 49 transitions. [2021-12-16 09:25:22,651 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:25:22,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2021-12-16 09:25:22,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:25:22,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:25:22,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:25:22,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:25:22,652 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:25:22,652 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:25:22,652 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:25:22,652 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:25:22,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:25:22,652 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:25:22,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:25:22,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:25:22 BoogieIcfgContainer [2021-12-16 09:25:22,661 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:25:22,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:25:22,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:25:22,662 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:25:22,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:25:20" (3/4) ... [2021-12-16 09:25:22,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:25:22,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:25:22,665 INFO L158 Benchmark]: Toolchain (without parser) took 3224.64ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 81.0MB in the beginning and 54.5MB in the end (delta: 26.4MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2021-12-16 09:25:22,665 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:25:22,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.59ms. Allocated memory is still 102.8MB. Free memory was 80.8MB in the beginning and 65.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-16 09:25:22,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:25:22,668 INFO L158 Benchmark]: Boogie Preprocessor took 37.04ms. Allocated memory is still 102.8MB. Free memory was 63.4MB in the beginning and 62.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:25:22,669 INFO L158 Benchmark]: RCFGBuilder took 275.19ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 78.2MB in the end (delta: -16.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-12-16 09:25:22,671 INFO L158 Benchmark]: BuchiAutomizer took 2515.98ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 78.2MB in the beginning and 54.5MB in the end (delta: 23.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2021-12-16 09:25:22,671 INFO L158 Benchmark]: Witness Printer took 2.54ms. Allocated memory is still 123.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:25:22,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.59ms. Allocated memory is still 102.8MB. Free memory was 80.8MB in the beginning and 65.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.04ms. Allocated memory is still 102.8MB. Free memory was 63.4MB in the beginning and 62.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.19ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 78.2MB in the end (delta: -16.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2515.98ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 78.2MB in the beginning and 54.5MB in the end (delta: 23.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 2.54ms. Allocated memory is still 123.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + in_len and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 54 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital109 mio100 ax100 hnf99 lsp91 ukn92 mio100 lsp54 div100 bol100 ite100 ukn100 eq176 hnf90 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 79ms VariablesStem: 6 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 09:25:22,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-16 09:25:22,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE