./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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-crafted/Arrays02-EquivalentConstantIndices.c -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 072df04afae5ae28487e0b8208c52f13961dea34 ....................................................................................................................................................................................................................................................................... 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-f470102 [2019-11-28 20:28:34,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:28:34,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:28:34,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:28:34,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:28:34,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:28:34,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:28:34,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:28:34,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:28:34,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:28:34,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:28:34,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:28:34,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:28:34,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:28:34,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:28:34,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:28:34,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:28:34,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:28:34,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:28:34,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:28:34,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:28:34,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:28:34,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:28:34,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:28:34,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:28:34,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:28:34,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:28:34,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:28:34,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:28:34,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:28:34,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:28:34,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:28:34,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:28:34,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:28:34,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:28:34,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:28:34,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:28:34,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:28:34,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:28:34,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:28:34,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:28:34,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:28:34,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:28:34,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:28:34,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:28:34,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:28:34,646 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:28:34,647 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:28:34,647 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:28:34,647 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:28:34,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:28:34,648 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:28:34,648 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:28:34,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:28:34,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:28:34,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:28:34,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:28:34,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:28:34,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:28:34,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:28:34,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:28:34,651 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:28:34,651 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:28:34,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:28:34,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:28:34,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:28:34,652 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:28:34,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:28:34,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:28:34,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:28:34,653 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:28:34,654 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:28:34,655 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 -> 072df04afae5ae28487e0b8208c52f13961dea34 [2019-11-28 20:28:34,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:28:34,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:28:35,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:28:35,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:28:35,004 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:28:35,005 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-28 20:28:35,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8286b445f/bddb51a87e484dbd85ee609517f7539f/FLAGea2fd6042 [2019-11-28 20:28:35,531 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:28:35,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2019-11-28 20:28:35,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8286b445f/bddb51a87e484dbd85ee609517f7539f/FLAGea2fd6042 [2019-11-28 20:28:35,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8286b445f/bddb51a87e484dbd85ee609517f7539f [2019-11-28 20:28:35,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:28:35,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:28:35,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:28:35,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:28:35,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:28:35,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:28:35" (1/1) ... [2019-11-28 20:28:35,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae7557c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:35, skipping insertion in model container [2019-11-28 20:28:35,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:28:35" (1/1) ... [2019-11-28 20:28:35,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:28:35,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:28:36,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:28:36,143 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:28:36,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:28:36,181 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:28:36,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36 WrapperNode [2019-11-28 20:28:36,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:28:36,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:28:36,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:28:36,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:28:36,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:28:36,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:28:36,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:28:36,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:28:36,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... [2019-11-28 20:28:36,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:28:36,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:28:36,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:28:36,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:28:36,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:28:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:28:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:28:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:28:36,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:28:36,573 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:28:36,573 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:28:36,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:36 BoogieIcfgContainer [2019-11-28 20:28:36,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:28:36,576 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:28:36,576 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:28:36,580 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:28:36,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:36,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:28:35" (1/3) ... [2019-11-28 20:28:36,587 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45031902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:28:36, skipping insertion in model container [2019-11-28 20:28:36,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:36,587 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:36" (2/3) ... [2019-11-28 20:28:36,601 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45031902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:28:36, skipping insertion in model container [2019-11-28 20:28:36,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:36,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:36" (3/3) ... [2019-11-28 20:28:36,607 INFO L371 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2019-11-28 20:28:36,693 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:28:36,693 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:28:36,694 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:28:36,694 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:28:36,694 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:28:36,694 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:28:36,694 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:28:36,695 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:28:36,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 20:28:36,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:28:36,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:28:36,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:28:36,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:28:36,734 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:28:36,734 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:28:36,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 20:28:36,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:28:36,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:28:36,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:28:36,736 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:28:36,736 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:28:36,742 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~nondet3, main_#t~mem1, main_~#a~0.base, main_~#a~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet0; 4#L13-3true [2019-11-28 20:28:36,742 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true call main_#t~mem1 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4); 7#L13-1true assume !!(main_#t~mem1 >= 0);havoc main_#t~mem1;call main_#t~mem2 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4);call write~int(main_#t~mem2 - 1, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~mem2;call write~int(main_#t~nondet3, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet3; 4#L13-3true [2019-11-28 20:28:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:36,748 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 20:28:36,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:36,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120211999] [2019-11-28 20:28:36,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,899 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-11-28 20:28:36,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:36,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350738592] [2019-11-28 20:28:36,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,922 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:36,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:36,927 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-28 20:28:36,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:36,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218321735] [2019-11-28 20:28:36,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:36,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:37,233 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2019-11-28 20:28:37,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:28:37 BoogieIcfgContainer [2019-11-28 20:28:37,314 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:28:37,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:28:37,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:28:37,315 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:28:37,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:36" (3/4) ... [2019-11-28 20:28:37,320 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:28:37,364 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:28:37,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:28:37,367 INFO L168 Benchmark]: Toolchain (without parser) took 1415.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,368 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:28:37,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,371 INFO L168 Benchmark]: Boogie Preprocessor took 29.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:28:37,372 INFO L168 Benchmark]: RCFGBuilder took 265.05 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,373 INFO L168 Benchmark]: BuchiAutomizer took 738.11 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,374 INFO L168 Benchmark]: Witness Printer took 50.24 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:37,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.36 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 265.05 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 738.11 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.24 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: 6.6 MB). Peak memory consumption was 6.6 MB. 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 0.6s and 1 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 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: 13]: 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.CASTFunctionCallExpression@396b2ed1=8945, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7b702ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@4884e890=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a5ea19b=0, \result=0, a=0, NULL=1, a=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...