./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Loop-2.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-restricted-15/Loop-2.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 079a94391776bb57925fadb38be78dd5e66e0a82 ................................................................................................................................................................................................................................................................... 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 20:30:56,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:30:56,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:30:56,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:30:56,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:30:56,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:30:56,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:30:56,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:30:56,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:30:56,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:30:56,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:30:56,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:30:56,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:30:56,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:30:56,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:30:56,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:30:56,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:30:56,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:30:56,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:30:56,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:30:56,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:30:56,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:30:56,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:30:56,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:30:56,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:30:56,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:30:56,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:30:56,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:30:56,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:30:56,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:30:56,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:30:56,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:30:56,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:30:56,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:30:56,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:30:56,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:30:56,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:30:56,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:30:56,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:30:56,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:30:56,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:30:56,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:30:56,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:30:56,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:30:56,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:30:56,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:30:56,644 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:30:56,644 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:30:56,644 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:30:56,644 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:30:56,645 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:30:56,645 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:30:56,645 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:30:56,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:30:56,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:30:56,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:30:56,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:30:56,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:30:56,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:30:56,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:30:56,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:30:56,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:30:56,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:30:56,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:30:56,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:30:56,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:30:56,650 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:30:56,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:30:56,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:30:56,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:30:56,652 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:30:56,653 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:30:56,653 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 -> 079a94391776bb57925fadb38be78dd5e66e0a82 [2019-11-28 20:30:56,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:30:57,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:30:57,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:30:57,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:30:57,009 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:30:57,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Loop-2.c [2019-11-28 20:30:57,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb24de8/09af28fc3bcf40688aa36e2b2ba6b743/FLAG9ce1e8c76 [2019-11-28 20:30:57,599 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:30:57,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2019-11-28 20:30:57,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb24de8/09af28fc3bcf40688aa36e2b2ba6b743/FLAG9ce1e8c76 [2019-11-28 20:30:57,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4eb24de8/09af28fc3bcf40688aa36e2b2ba6b743 [2019-11-28 20:30:57,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:30:57,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:30:57,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:30:57,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:30:57,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:30:57,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:30:57" (1/1) ... [2019-11-28 20:30:57,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60311b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:57, skipping insertion in model container [2019-11-28 20:30:57,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:30:57" (1/1) ... [2019-11-28 20:30:57,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:30:57,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:30:58,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:30:58,182 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:30:58,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:30:58,212 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:30:58,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58 WrapperNode [2019-11-28 20:30:58,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:30:58,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:30:58,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:30:58,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:30:58,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:30:58,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:30:58,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:30:58,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:30:58,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (1/1) ... [2019-11-28 20:30:58,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:30:58,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:30:58,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:30:58,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:30:58,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (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 20:30:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:30:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:30:58,508 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:30:58,509 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:30:58,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:30:58 BoogieIcfgContainer [2019-11-28 20:30:58,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:30:58,511 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:30:58,511 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:30:58,514 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:30:58,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:30:58,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:30:57" (1/3) ... [2019-11-28 20:30:58,517 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d91f72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:30:58, skipping insertion in model container [2019-11-28 20:30:58,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:30:58,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:30:58" (2/3) ... [2019-11-28 20:30:58,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d91f72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:30:58, skipping insertion in model container [2019-11-28 20:30:58,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:30:58,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:30:58" (3/3) ... [2019-11-28 20:30:58,520 INFO L371 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2019-11-28 20:30:58,570 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:30:58,570 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:30:58,571 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:30:58,571 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:30:58,571 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:30:58,572 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:30:58,573 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:30:58,573 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:30:58,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 20:30:58,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:30:58,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:30:58,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:30:58,611 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:30:58,612 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:30:58,612 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:30:58,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 20:30:58,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:30:58,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:30:58,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:30:58,614 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:30:58,614 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:30:58,620 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~a~0, main_~b~0, main_~i~0;havoc main_~a~0;havoc main_~b~0;havoc main_~i~0;main_~a~0 := 5;main_~b~0 := 3;main_~i~0 := 0; 6#L13-2true [2019-11-28 20:30:58,621 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~i~0 < 10);main_~i~0 := main_~i~0; 6#L13-2true [2019-11-28 20:30:58,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:30:58,626 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:30:58,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:30:58,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829839437] [2019-11-28 20:30:58,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:30:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,717 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:30:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:30:58,719 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-28 20:30:58,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:30:58,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846770918] [2019-11-28 20:30:58,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:30:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:30:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:30:58,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 20:30:58,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:30:58,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191539863] [2019-11-28 20:30:58,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:30:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:30:58,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:30:58,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:30:58 BoogieIcfgContainer [2019-11-28 20:30:58,876 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:30:58,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:30:58,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:30:58,878 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:30:58,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:30:58" (3/4) ... [2019-11-28 20:30:58,883 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:30:58,931 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:30:58,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:30:58,935 INFO L168 Benchmark]: Toolchain (without parser) took 978.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -133.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:30:58,936 INFO L168 Benchmark]: CDTParser took 0.25 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 20:30:58,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:30:58,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.90 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:30:58,939 INFO L168 Benchmark]: Boogie Preprocessor took 75.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:30:58,940 INFO L168 Benchmark]: RCFGBuilder took 190.85 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:30:58,941 INFO L168 Benchmark]: BuchiAutomizer took 365.47 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: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:30:58,941 INFO L168 Benchmark]: Witness Printer took 54.56 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 20:30:58,947 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 256.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 29.90 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.85 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 365.47 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: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Witness Printer took 54.56 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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 {} State at position 1 is {a=5, \result=0, b=3, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...