./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/psyco/psyco_abp_1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e1064ca8851049d7703c5646c80faf613ee8a93 ............................................................................................................................................................................................................................................................................................................................................................. 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 19:07:55,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:07:55,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:07:55,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:07:55,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:07:55,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:07:55,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:07:55,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:07:55,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:07:55,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:07:55,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:07:55,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:07:55,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:07:55,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:07:55,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:07:55,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:07:55,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:07:55,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:07:55,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:07:55,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:07:55,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:07:55,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:07:55,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:07:55,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:07:55,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:07:55,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:07:55,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:07:55,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:07:55,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:07:55,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:07:55,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:07:55,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:07:55,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:07:55,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:07:55,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:07:55,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:07:55,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:07:55,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:07:55,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:07:55,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:07:55,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:07:55,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:07:55,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:07:55,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:07:55,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:07:55,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:07:55,650 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:07:55,651 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:07:55,651 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:07:55,651 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:07:55,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:07:55,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:07:55,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:07:55,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:07:55,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:07:55,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:07:55,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:07:55,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:07:55,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:07:55,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:07:55,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:07:55,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:07:55,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:07:55,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:07:55,656 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:07:55,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:07:55,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:07:55,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:07:55,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:07:55,657 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:07:55,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:07:55,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:07:55,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:07:55,658 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:07:55,660 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:07:55,660 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e1064ca8851049d7703c5646c80faf613ee8a93 [2020-10-19 19:07:55,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:07:55,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:07:55,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:07:55,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:07:55,986 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:07:55,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2020-10-19 19:07:56,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6779a98f4/423c343096d24424a01f3a2cde55434c/FLAG9946f1408 [2020-10-19 19:07:56,575 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:07:56,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2020-10-19 19:07:56,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6779a98f4/423c343096d24424a01f3a2cde55434c/FLAG9946f1408 [2020-10-19 19:07:56,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6779a98f4/423c343096d24424a01f3a2cde55434c [2020-10-19 19:07:56,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:07:56,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:07:56,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:07:56,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:07:56,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:07:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:07:56" (1/1) ... [2020-10-19 19:07:56,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab8e8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:56, skipping insertion in model container [2020-10-19 19:07:56,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:07:56" (1/1) ... [2020-10-19 19:07:56,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:07:56,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:07:57,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:07:57,315 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:07:57,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:07:57,465 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:07:57,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57 WrapperNode [2020-10-19 19:07:57,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:07:57,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:07:57,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:07:57,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:07:57,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:07:57,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:07:57,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:07:57,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:07:57,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (1/1) ... [2020-10-19 19:07:57,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:07:57,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:07:57,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:07:57,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:07:57,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (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 19:07:57,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:07:57,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:07:57,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:07:57,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:07:58,562 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:07:58,563 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 19:07:58,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:07:58 BoogieIcfgContainer [2020-10-19 19:07:58,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:07:58,566 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:07:58,570 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:07:58,574 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:07:58,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:07:58,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:07:56" (1/3) ... [2020-10-19 19:07:58,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2608d304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:07:58, skipping insertion in model container [2020-10-19 19:07:58,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:07:58,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:07:57" (2/3) ... [2020-10-19 19:07:58,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2608d304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:07:58, skipping insertion in model container [2020-10-19 19:07:58,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:07:58,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:07:58" (3/3) ... [2020-10-19 19:07:58,591 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2020-10-19 19:07:58,643 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:07:58,643 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:07:58,643 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:07:58,643 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:07:58,643 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:07:58,644 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:07:58,644 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:07:58,644 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:07:58,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2020-10-19 19:07:58,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2020-10-19 19:07:58,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:07:58,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:07:58,703 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:07:58,703 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:07:58,703 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:07:58,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2020-10-19 19:07:58,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2020-10-19 19:07:58,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:07:58,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:07:58,714 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:07:58,714 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:07:58,723 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 12#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 33#L26-2true [2020-10-19 19:07:58,724 INFO L796 eck$LassoCheckResult]: Loop: 33#L26-2true goto; 14#L563true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 10#L40true assume !(main_~this_expect~0 > 16); 5#L40-2true assume !(0 == main_~q~0); 17#L65true assume !(1 == main_~q~0); 75#L165true assume !(2 == main_~q~0); 41#L265true assume !(3 == main_~q~0); 6#L365true assume !(4 == main_~q~0); 86#L465true assume !(5 == main_~q~0); 33#L26-2true [2020-10-19 19:07:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:58,732 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:07:58,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:58,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909844770] [2020-10-19 19:07:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:58,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:58,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:58,878 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:07:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:58,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2020-10-19 19:07:58,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:58,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113713759] [2020-10-19 19:07:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:58,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:58,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:58,902 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:07:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:58,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2020-10-19 19:07:58,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:58,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820187917] [2020-10-19 19:07:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:07:59,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:07:59,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820187917] [2020-10-19 19:07:59,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:07:59,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:07:59,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194152839] [2020-10-19 19:07:59,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:07:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:07:59,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:07:59,169 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2020-10-19 19:07:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:07:59,338 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2020-10-19 19:07:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:07:59,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2020-10-19 19:07:59,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2020-10-19 19:07:59,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2020-10-19 19:07:59,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2020-10-19 19:07:59,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2020-10-19 19:07:59,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2020-10-19 19:07:59,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:07:59,356 INFO L691 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2020-10-19 19:07:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2020-10-19 19:07:59,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-19 19:07:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-19 19:07:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2020-10-19 19:07:59,393 INFO L714 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2020-10-19 19:07:59,394 INFO L594 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2020-10-19 19:07:59,394 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:07:59,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2020-10-19 19:07:59,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2020-10-19 19:07:59,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:07:59,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:07:59,397 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:07:59,397 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:07:59,397 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 260#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 261#L26-2 goto; 267#L563 [2020-10-19 19:07:59,398 INFO L796 eck$LassoCheckResult]: Loop: 267#L563 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 255#L40 assume !(main_~this_expect~0 > 16); 241#L40-2 assume 0 == main_~q~0; 242#L46 assume !(0 != main_#t~nondet16);havoc main_#t~nondet16; 267#L563 [2020-10-19 19:07:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:59,398 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-19 19:07:59,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:59,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091143012] [2020-10-19 19:07:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,446 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:07:59,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:59,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2020-10-19 19:07:59,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:59,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301379789] [2020-10-19 19:07:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:07:59,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:07:59,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2020-10-19 19:07:59,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:07:59,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25950373] [2020-10-19 19:07:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:07:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:07:59,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:07:59,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:07:59,851 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-10-19 19:07:59,969 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-19 19:08:00,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:08:00 BoogieIcfgContainer [2020-10-19 19:08:00,005 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:08:00,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:08:00,006 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:08:00,007 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:08:00,007 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:07:58" (3/4) ... [2020-10-19 19:08:00,010 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 19:08:00,073 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 19:08:00,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:08:00,075 INFO L168 Benchmark]: Toolchain (without parser) took 3135.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 961.3 MB in the beginning and 928.1 MB in the end (delta: 33.2 MB). Peak memory consumption was 158.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,076 INFO L168 Benchmark]: CDTParser took 1.26 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 19:08:00,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,078 INFO L168 Benchmark]: Boogie Preprocessor took 88.69 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,079 INFO L168 Benchmark]: RCFGBuilder took 921.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,080 INFO L168 Benchmark]: BuchiAutomizer took 1439.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 928.1 MB in the end (delta: 121.4 MB). Peak memory consumption was 121.4 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:00,080 INFO L168 Benchmark]: Witness Printer took 67.31 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:00,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 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 520.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.56 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.69 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 921.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1439.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 928.1 MB in the end (delta: 121.4 MB). Peak memory consumption was 121.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.31 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 MB. 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 204 SDtfs, 5 SDslu, 158 SDs, 0 SdLazy, 43 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9133} State at position 1 is {NULL=0, m_Protocol=1, NULL=9133, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22edc306=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2edd752b=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63d1ed44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47bd2d76=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672cd899=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@830c526=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@795c8e4e=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77ea644c=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b537c44=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ee23228=25, NULL=0, NULL=0, P8=19, P6=20, P4=18, P2=26, this_buffer_empty=0, this_expect=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38ba4541=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4adc253f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f6fac44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@636eab3f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cf40b35=0, m_recv_ack_1_2=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9946a5e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@224a538e=0, m_msg_1_1=4, NULL=9136, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cb7efe=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67961816=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15d36d64=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43cfc90c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@704f0452=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70633a89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@230d4b02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@138c330a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11829686=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb771c6=0, NULL=9135, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16529bd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f0c5ce7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36904d5f=0, NULL=0, P9=25, P7=22, NULL=9134, P5=23, P3=21, P1=24, m_msg_2=2, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6467a2a9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a9fe5ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf61414=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18c57ed1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cafcde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cebfad5=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45e1e1b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cca6146=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29ce5684=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52e3b11d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...