./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/n.c40.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:03:51,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:03:51,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:03:51,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:03:51,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:03:51,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:03:51,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:03:51,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:03:51,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:03:51,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:03:51,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:03:51,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:03:51,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:03:51,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:03:51,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:03:51,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:03:51,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:03:51,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:03:51,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:03:51,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:03:51,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:03:51,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:03:51,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:03:51,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:03:51,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:03:51,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:03:51,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:03:51,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:03:51,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:03:51,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:03:51,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:03:51,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:03:51,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:03:51,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:03:51,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:03:51,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:03:51,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:03:51,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:03:51,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:03:51,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:03:51,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:03:51,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:03:51,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:03:51,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:03:51,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:03:51,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:03:51,144 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:03:51,146 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:03:51,146 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:03:51,146 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:03:51,147 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:03:51,147 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:03:51,147 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:03:51,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:03:51,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:03:51,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:03:51,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:03:51,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:03:51,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:03:51,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:03:51,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:03:51,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:03:51,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:03:51,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:03:51,151 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:03:51,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:03:51,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:03:51,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:03:51,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:03:51,154 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:03:51,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:03:51,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:03:51,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:03:51,156 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:03:51,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:03:51,158 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e [2020-10-20 07:03:51,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:03:51,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:03:51,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:03:51,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:03:51,366 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:03:51,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/n.c40.c [2020-10-20 07:03:51,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0793622/283b329a26ce4b5fbf4f1ebf8a7f3461/FLAGd851ca43a [2020-10-20 07:03:51,835 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:03:51,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c [2020-10-20 07:03:51,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0793622/283b329a26ce4b5fbf4f1ebf8a7f3461/FLAGd851ca43a [2020-10-20 07:03:52,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0793622/283b329a26ce4b5fbf4f1ebf8a7f3461 [2020-10-20 07:03:52,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:03:52,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:03:52,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:03:52,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:03:52,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:03:52,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236ffff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52, skipping insertion in model container [2020-10-20 07:03:52,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:03:52,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:03:52,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:03:52,528 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:03:52,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:03:52,572 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:03:52,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52 WrapperNode [2020-10-20 07:03:52,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:03:52,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:03:52,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:03:52,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:03:52,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:03:52,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:03:52,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:03:52,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:03:52,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... [2020-10-20 07:03:52,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:03:52,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:03:52,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:03:52,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:03:52,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:03:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 07:03:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:03:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 07:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:03:52,966 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:03:52,967 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-20 07:03:52,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:03:52 BoogieIcfgContainer [2020-10-20 07:03:52,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:03:52,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:03:52,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:03:52,973 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:03:52,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:03:52,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:03:52" (1/3) ... [2020-10-20 07:03:52,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86a714e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:03:52, skipping insertion in model container [2020-10-20 07:03:52,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:03:52,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:03:52" (2/3) ... [2020-10-20 07:03:52,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86a714e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:03:52, skipping insertion in model container [2020-10-20 07:03:52,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:03:52,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:03:52" (3/3) ... [2020-10-20 07:03:52,979 INFO L373 chiAutomizerObserver]: Analyzing ICFG n.c40.c [2020-10-20 07:03:53,027 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:03:53,028 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:03:53,028 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:03:53,028 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:03:53,028 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:03:53,029 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:03:53,029 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:03:53,029 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:03:53,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 07:03:53,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:03:53,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:03:53,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:03:53,075 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:03:53,075 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:03:53,075 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:03:53,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 07:03:53,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:03:53,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:03:53,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:03:53,078 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:03:53,078 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:03:53,086 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(8);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#x~0.base, ~#x~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#x~0.base);call ~#y~0.base, ~#y~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~mem9, main_#t~post10, main_#t~mem8, main_#t~mem11;~k~0 := main_#t~nondet7;havoc main_#t~nondet7;~i~0 := 0; 9#L14-3true [2020-10-20 07:03:53,087 INFO L796 eck$LassoCheckResult]: Loop: 9#L14-3true call main_#t~mem8 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1); 12#L14-1true assume !!(0 != main_#t~mem8);havoc main_#t~mem8;call main_#t~mem9 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int(main_#t~mem9, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem9;main_#t~post10 := ~i~0;~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 9#L14-3true [2020-10-20 07:03:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:03:53,094 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-20 07:03:53,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:03:53,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191157684] [2020-10-20 07:03:53,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:03:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:03:53,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:03:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:03:53,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:03:53,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:03:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:03:53,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2020-10-20 07:03:53,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:03:53,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471862447] [2020-10-20 07:03:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:03:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:03:53,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:03:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:03:53,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:03:53,335 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:03:53,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:03:53,337 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-10-20 07:03:53,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:03:53,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048747047] [2020-10-20 07:03:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:03:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:03:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:03:53,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048747047] [2020-10-20 07:03:53,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:03:53,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 07:03:53,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028397706] [2020-10-20 07:03:53,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:03:53,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 07:03:53,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 07:03:53,627 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2020-10-20 07:03:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:03:53,666 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-20 07:03:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 07:03:53,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2020-10-20 07:03:53,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:03:53,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-10-20 07:03:53,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:03:53,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:03:53,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:03:53,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:03:53,676 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:03:53,676 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:03:53,677 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:03:53,677 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:03:53,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:03:53,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:03:53,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:03:53,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:03:53 BoogieIcfgContainer [2020-10-20 07:03:53,684 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:03:53,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:03:53,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:03:53,685 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:03:53,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:03:52" (3/4) ... [2020-10-20 07:03:53,689 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:03:53,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:03:53,692 INFO L168 Benchmark]: Toolchain (without parser) took 1461.03 ms. Allocated memory was 37.7 MB in the beginning and 48.8 MB in the end (delta: 11.0 MB). Free memory was 20.0 MB in the beginning and 24.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,693 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 34.6 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.26 ms. Allocated memory was 37.7 MB in the beginning and 45.1 MB in the end (delta: 7.3 MB). Free memory was 19.2 MB in the beginning and 27.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.89 ms. Allocated memory is still 45.1 MB. Free memory was 27.0 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,696 INFO L168 Benchmark]: Boogie Preprocessor took 54.68 ms. Allocated memory is still 45.1 MB. Free memory was 25.3 MB in the beginning and 23.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,698 INFO L168 Benchmark]: RCFGBuilder took 288.55 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 23.9 MB in the beginning and 23.1 MB in the end (delta: 814.1 kB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,699 INFO L168 Benchmark]: BuchiAutomizer took 714.63 ms. Allocated memory was 47.2 MB in the beginning and 48.8 MB in the end (delta: 1.6 MB). Free memory was 22.8 MB in the beginning and 25.1 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:03:53,700 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 48.8 MB. Free memory was 25.1 MB in the beginning and 24.8 MB in the end (delta: 329.2 kB). Peak memory consumption was 329.2 kB. Max. memory is 14.3 GB. [2020-10-20 07:03:53,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 34.6 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 339.26 ms. Allocated memory was 37.7 MB in the beginning and 45.1 MB in the end (delta: 7.3 MB). Free memory was 19.2 MB in the beginning and 27.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 48.89 ms. Allocated memory is still 45.1 MB. Free memory was 27.0 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 54.68 ms. Allocated memory is still 45.1 MB. Free memory was 25.3 MB in the beginning and 23.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 288.55 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 23.9 MB in the beginning and 23.1 MB in the end (delta: 814.1 kB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 714.63 ms. Allocated memory was 47.2 MB in the beginning and 48.8 MB in the end (delta: 1.6 MB). Free memory was 22.8 MB in the beginning and 25.1 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.14 ms. Allocated memory is still 48.8 MB. Free memory was 25.1 MB in the beginning and 24.8 MB in the end (delta: 329.2 kB). Peak memory consumption was 329.2 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 7 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...