./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex05.c --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-restricted-15/Ex05.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 8a1f32956e56edf938d274e701538e5f2c73fe0a .................................................................................................................................................................................................................................................................... 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 18:42:16,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:42:16,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:42:16,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:42:16,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:42:16,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:42:16,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:42:16,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:42:16,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:42:16,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:42:16,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:42:16,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:42:16,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:42:16,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:42:16,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:42:16,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:42:16,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:42:16,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:42:16,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:42:16,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:42:16,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:42:16,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:42:16,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:42:16,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:42:16,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:42:16,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:42:16,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:42:16,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:42:16,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:42:16,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:42:16,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:42:16,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:42:16,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:42:16,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:42:16,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:42:16,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:42:16,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:42:16,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:42:16,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:42:16,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:42:16,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:42:16,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:42:16,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:42:16,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:42:16,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:42:16,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:42:16,516 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:42:16,516 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:42:16,516 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:42:16,517 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:42:16,517 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:42:16,517 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:42:16,517 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:42:16,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:42:16,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:42:16,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:42:16,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:42:16,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:42:16,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:42:16,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:42:16,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:42:16,521 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:42:16,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:42:16,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:42:16,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:42:16,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:42:16,522 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:42:16,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:42:16,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:42:16,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:42:16,523 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:42:16,524 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:42:16,525 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 -> 8a1f32956e56edf938d274e701538e5f2c73fe0a [2020-10-19 18:42:16,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:42:16,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:42:16,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:42:16,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:42:16,907 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:42:16,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex05.c [2020-10-19 18:42:16,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b3d61ec/594a915cdcd14b3794feaa3e72a146ad/FLAGeaa9f00d4 [2020-10-19 18:42:17,448 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:42:17,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c [2020-10-19 18:42:17,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b3d61ec/594a915cdcd14b3794feaa3e72a146ad/FLAGeaa9f00d4 [2020-10-19 18:42:17,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b3d61ec/594a915cdcd14b3794feaa3e72a146ad [2020-10-19 18:42:17,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:42:17,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:42:17,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:17,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:42:17,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:42:17,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:17" (1/1) ... [2020-10-19 18:42:17,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d067e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:17, skipping insertion in model container [2020-10-19 18:42:17,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:17" (1/1) ... [2020-10-19 18:42:17,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:42:17,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:42:18,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:18,058 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:42:18,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:18,082 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:42:18,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18 WrapperNode [2020-10-19 18:42:18,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:18,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:18,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:42:18,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:42:18,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:18,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:42:18,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:42:18,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:42:18,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (1/1) ... [2020-10-19 18:42:18,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:42:18,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:42:18,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:42:18,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:42:18,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (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 18:42:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:42:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:42:18,383 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:42:18,383 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:42:18,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:18 BoogieIcfgContainer [2020-10-19 18:42:18,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:42:18,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:42:18,386 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:42:18,389 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:42:18,390 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:18,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:42:17" (1/3) ... [2020-10-19 18:42:18,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1324946d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:18, skipping insertion in model container [2020-10-19 18:42:18,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:18,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:18" (2/3) ... [2020-10-19 18:42:18,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1324946d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:18, skipping insertion in model container [2020-10-19 18:42:18,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:18,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:18" (3/3) ... [2020-10-19 18:42:18,394 INFO L373 chiAutomizerObserver]: Analyzing ICFG Ex05.c [2020-10-19 18:42:18,442 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:42:18,443 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:42:18,443 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:42:18,443 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:42:18,443 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:42:18,443 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:42:18,443 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:42:18,443 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:42:18,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-19 18:42:18,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:18,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:18,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:18,489 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:18,490 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:18,490 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:42:18,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-19 18:42:18,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:18,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:18,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:18,492 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:18,492 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:18,500 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L9-2true [2020-10-19 18:42:18,501 INFO L796 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!(0 != ~unnamed0~0~true); 6#L9-2true [2020-10-19 18:42:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:18,507 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:42:18,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:18,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945694775] [2020-10-19 18:42:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:18,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:18,623 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-19 18:42:18,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:18,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433897917] [2020-10-19 18:42:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,632 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:18,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:18,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:42:18,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:18,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250395360] [2020-10-19 18:42:18,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:18,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:18,646 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:18,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:42:18 BoogieIcfgContainer [2020-10-19 18:42:18,731 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:42:18,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:42:18,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:42:18,732 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:42:18,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:18" (3/4) ... [2020-10-19 18:42:18,737 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 18:42:18,783 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:42:18,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:42:18,787 INFO L168 Benchmark]: Toolchain (without parser) took 947.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 960.0 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:18,788 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:18,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:18,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.00 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:18,790 INFO L168 Benchmark]: Boogie Preprocessor took 76.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:18,791 INFO L168 Benchmark]: RCFGBuilder took 194.91 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. [2020-10-19 18:42:18,792 INFO L168 Benchmark]: BuchiAutomizer took 344.99 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:18,793 INFO L168 Benchmark]: Witness Printer took 52.71 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. [2020-10-19 18:42:18,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 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 30.00 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.91 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 344.99 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Witness Printer took 52.71 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 0.2s 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: 9]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776ba7b5=0, \result=0, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...