./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ccb5cb9edc315122662555ec62bb7adf5b85f05c .......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:44:53,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:44:53,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:44:53,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:44:53,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:44:53,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:44:53,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:44:53,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:44:53,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:44:53,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:44:53,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:44:53,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:44:53,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:44:53,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:44:53,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:44:53,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:44:53,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:44:53,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:44:53,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:44:53,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:44:53,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:44:53,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:44:53,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:44:53,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:44:53,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:44:53,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:44:53,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:44:53,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:44:53,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:44:53,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:44:53,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:44:53,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:44:53,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:44:53,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:44:53,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:44:53,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:44:53,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:44:53,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:44:53,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:44:53,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:44:53,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:44:53,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:44:53,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:44:53,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:44:53,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:44:53,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:44:53,530 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:44:53,531 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:44:53,531 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:44:53,531 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:44:53,531 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:44:53,531 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:44:53,532 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:44:53,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:44:53,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:44:53,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:44:53,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:44:53,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:44:53,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:44:53,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:44:53,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:44:53,535 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:44:53,535 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:44:53,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:44:53,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:44:53,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:44:53,536 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:44:53,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:44:53,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:44:53,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:44:53,537 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:44:53,538 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:44:53,538 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccb5cb9edc315122662555ec62bb7adf5b85f05c [2020-10-19 18:44:53,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:44:53,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:44:53,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:44:53,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:44:53,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:44:53,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2020-10-19 18:44:53,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78d7130e/466dc831ad3e4215963f1157a4bbac95/FLAG238a8f982 [2020-10-19 18:44:54,408 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:44:54,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2020-10-19 18:44:54,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78d7130e/466dc831ad3e4215963f1157a4bbac95/FLAG238a8f982 [2020-10-19 18:44:54,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d78d7130e/466dc831ad3e4215963f1157a4bbac95 [2020-10-19 18:44:54,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:44:54,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:44:54,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:54,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:44:54,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:44:54,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:54" (1/1) ... [2020-10-19 18:44:54,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2793a52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:54, skipping insertion in model container [2020-10-19 18:44:54,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:54" (1/1) ... [2020-10-19 18:44:54,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:44:54,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:44:55,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:55,214 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:44:55,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:55,320 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:44:55,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55 WrapperNode [2020-10-19 18:44:55,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:55,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:55,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:44:55,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:44:55,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:55,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:44:55,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:44:55,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:44:55,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (1/1) ... [2020-10-19 18:44:55,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:44:55,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:44:55,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:44:55,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:44:55,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (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 [2020-10-19 18:44:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:44:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:44:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:44:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:44:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:44:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:44:55,643 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:44:55,644 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:44:55,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:55 BoogieIcfgContainer [2020-10-19 18:44:55,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:44:55,646 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:44:55,647 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:44:55,650 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:44:55,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:55,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:44:54" (1/3) ... [2020-10-19 18:44:55,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c951f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:55, skipping insertion in model container [2020-10-19 18:44:55,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:55,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:55" (2/3) ... [2020-10-19 18:44:55,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c951f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:55, skipping insertion in model container [2020-10-19 18:44:55,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:55,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:55" (3/3) ... [2020-10-19 18:44:55,656 INFO L373 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2020-10-19 18:44:55,739 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:44:55,740 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:44:55,740 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:44:55,740 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:44:55,740 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:44:55,741 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:44:55,741 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:44:55,741 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:44:55,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-10-19 18:44:55,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:44:55,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:55,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:55,788 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:44:55,788 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:44:55,788 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:44:55,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-10-19 18:44:55,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:44:55,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:55,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:55,790 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:44:55,790 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:44:55,797 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 5#L549-2true [2020-10-19 18:44:55,798 INFO L796 eck$LassoCheckResult]: Loop: 5#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 5#L549-2true [2020-10-19 18:44:55,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:55,804 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 18:44:55,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:55,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348442248] [2020-10-19 18:44:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:55,936 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:55,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:55,937 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2020-10-19 18:44:55,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:55,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820643921] [2020-10-19 18:44:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:55,959 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:55,961 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2020-10-19 18:44:55,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:55,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145479119] [2020-10-19 18:44:55,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:55,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:56,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:56,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:44:56 BoogieIcfgContainer [2020-10-19 18:44:56,224 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:44:56,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:44:56,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:44:56,225 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:44:56,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:55" (3/4) ... [2020-10-19 18:44:56,229 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 18:44:56,264 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:44:56,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:44:56,267 INFO L168 Benchmark]: Toolchain (without parser) took 1493.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -104.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:56,267 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:56,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:56,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:56,270 INFO L168 Benchmark]: Boogie Preprocessor took 21.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:56,270 INFO L168 Benchmark]: RCFGBuilder took 261.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:56,271 INFO L168 Benchmark]: BuchiAutomizer took 578.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:56,272 INFO L168 Benchmark]: Witness Printer took 39.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:56,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 578.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@38e4b8fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ea8116=2, NULL=0, NULL=0, x=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ea8116=0, x=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7a27992d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1bbe502a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...