./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer --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 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-02 03:38:29,615 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:38:29,616 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:38:29,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:38:29,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:38:29,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:38:29,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:38:29,623 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:38:29,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:38:29,625 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:38:29,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:38:29,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:38:29,626 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:38:29,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:38:29,627 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:38:29,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:38:29,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:38:29,628 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:38:29,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:38:29,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:38:29,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:38:29,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:38:29,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:38:29,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:38:29,632 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:38:29,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:38:29,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:38:29,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:38:29,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:38:29,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:38:29,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:38:29,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:38:29,635 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:38:29,635 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:38:29,635 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:38:29,636 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:38:29,636 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 03:38:29,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:38:29,644 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:38:29,644 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:38:29,644 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:38:29,644 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 03:38:29,645 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 03:38:29,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:38:29,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 03:38:29,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:38:29,646 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 03:38:29,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:38:29,647 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 03:38:29,647 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 03:38:29,647 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 03:38:29,647 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer 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 -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2018-12-02 03:38:29,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:38:29,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:38:29,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:38:29,676 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:38:29,676 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:38:29,676 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-02 03:38:29,715 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/data/85a8179fe/5dbb859e2b364a118d33f1cd5d06d0fa/FLAG390a68f8a [2018-12-02 03:38:30,098 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:38:30,099 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-02 03:38:30,103 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/data/85a8179fe/5dbb859e2b364a118d33f1cd5d06d0fa/FLAG390a68f8a [2018-12-02 03:38:30,111 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/data/85a8179fe/5dbb859e2b364a118d33f1cd5d06d0fa [2018-12-02 03:38:30,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:38:30,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:38:30,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:38:30,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:38:30,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:38:30,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30, skipping insertion in model container [2018-12-02 03:38:30,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:38:30,131 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:38:30,214 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:38:30,217 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:38:30,227 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:38:30,235 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:38:30,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30 WrapperNode [2018-12-02 03:38:30,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:38:30,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:38:30,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:38:30,236 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:38:30,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:38:30,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:38:30,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:38:30,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:38:30,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... [2018-12-02 03:38:30,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:38:30,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:38:30,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:38:30,266 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:38:30,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/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 [2018-12-02 03:38:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:38:30,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:38:30,437 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:38:30,437 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 03:38:30,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:38:30 BoogieIcfgContainer [2018-12-02 03:38:30,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:38:30,438 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 03:38:30,438 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 03:38:30,441 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 03:38:30,441 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:38:30,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 03:38:30" (1/3) ... [2018-12-02 03:38:30,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3ea9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:38:30, skipping insertion in model container [2018-12-02 03:38:30,442 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:38:30,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:30" (2/3) ... [2018-12-02 03:38:30,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a3ea9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:38:30, skipping insertion in model container [2018-12-02 03:38:30,442 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:38:30,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:38:30" (3/3) ... [2018-12-02 03:38:30,444 INFO L375 chiAutomizerObserver]: Analyzing ICFG test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-12-02 03:38:30,482 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:38:30,482 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 03:38:30,482 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 03:38:30,482 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 03:38:30,482 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:38:30,482 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:38:30,482 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 03:38:30,482 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:38:30,482 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 03:38:30,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-12-02 03:38:30,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-12-02 03:38:30,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,513 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,513 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,513 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 03:38:30,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-12-02 03:38:30,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-12-02 03:38:30,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,515 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,515 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,520 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 9#L83-1true [2018-12-02 03:38:30,520 INFO L796 eck$LassoCheckResult]: Loop: 9#L83-1true assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L26true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 13#L41true assume 0 != main_~p1~0;main_~lk1~0 := 1; 8#L41-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 19#L45-1true assume !(0 != main_~p3~0); 6#L49-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 14#L53-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 22#L57-1true assume !(0 != main_~p1~0); 12#L63-1true assume !(0 != main_~p2~0); 24#L68-1true assume !(0 != main_~p3~0); 10#L73-1true assume !(0 != main_~p4~0); 21#L78-1true assume !(0 != main_~p5~0); 9#L83-1true [2018-12-02 03:38:30,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,523 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 03:38:30,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1077541325, now seen corresponding path program 1 times [2018-12-02 03:38:30,584 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:38:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:38:30,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:38:30,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:38:30,627 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 03:38:30,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:38:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:38:30,637 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-12-02 03:38:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:38:30,655 INFO L93 Difference]: Finished difference Result 44 states and 69 transitions. [2018-12-02 03:38:30,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:38:30,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 69 transitions. [2018-12-02 03:38:30,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2018-12-02 03:38:30,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 34 states and 52 transitions. [2018-12-02 03:38:30,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-12-02 03:38:30,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2018-12-02 03:38:30,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 52 transitions. [2018-12-02 03:38:30,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 03:38:30,662 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 52 transitions. [2018-12-02 03:38:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 52 transitions. [2018-12-02 03:38:30,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-02 03:38:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 03:38:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2018-12-02 03:38:30,679 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 52 transitions. [2018-12-02 03:38:30,679 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 52 transitions. [2018-12-02 03:38:30,679 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 03:38:30,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 52 transitions. [2018-12-02 03:38:30,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2018-12-02 03:38:30,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,680 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,680 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,680 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 96#L83-1 [2018-12-02 03:38:30,680 INFO L796 eck$LassoCheckResult]: Loop: 96#L83-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 103#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 102#L41 assume !(0 != main_~p1~0); 84#L41-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 85#L45-1 assume !(0 != main_~p3~0); 101#L49-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 91#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 92#L57-1 assume !(0 != main_~p1~0); 88#L63-1 assume !(0 != main_~p2~0); 81#L68-1 assume !(0 != main_~p3~0); 94#L73-1 assume !(0 != main_~p4~0); 105#L78-1 assume !(0 != main_~p5~0); 96#L83-1 [2018-12-02 03:38:30,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,681 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-02 03:38:30,681 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1470568335, now seen corresponding path program 1 times [2018-12-02 03:38:30,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,686 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 03:38:30,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:38:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:38:30,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:38:30,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:38:30,699 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 03:38:30,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:38:30,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:38:30,699 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. cyclomatic complexity: 20 Second operand 3 states. [2018-12-02 03:38:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:38:30,713 INFO L93 Difference]: Finished difference Result 65 states and 97 transitions. [2018-12-02 03:38:30,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:38:30,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 97 transitions. [2018-12-02 03:38:30,715 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2018-12-02 03:38:30,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 65 states and 97 transitions. [2018-12-02 03:38:30,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2018-12-02 03:38:30,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2018-12-02 03:38:30,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 97 transitions. [2018-12-02 03:38:30,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 03:38:30,716 INFO L705 BuchiCegarLoop]: Abstraction has 65 states and 97 transitions. [2018-12-02 03:38:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 97 transitions. [2018-12-02 03:38:30,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-12-02 03:38:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-02 03:38:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 97 transitions. [2018-12-02 03:38:30,719 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 97 transitions. [2018-12-02 03:38:30,719 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 97 transitions. [2018-12-02 03:38:30,719 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 03:38:30,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 97 transitions. [2018-12-02 03:38:30,720 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2018-12-02 03:38:30,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,720 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,720 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,720 INFO L794 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 203#L83-1 [2018-12-02 03:38:30,720 INFO L796 eck$LassoCheckResult]: Loop: 203#L83-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 212#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 209#L41 assume !(0 != main_~p1~0); 210#L41-2 assume !(0 != main_~p2~0); 232#L45-1 assume !(0 != main_~p3~0); 231#L49-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 230#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 229#L57-1 assume !(0 != main_~p1~0); 228#L63-1 assume !(0 != main_~p2~0); 225#L68-1 assume !(0 != main_~p3~0); 221#L73-1 assume !(0 != main_~p4~0); 217#L78-1 assume !(0 != main_~p5~0); 203#L83-1 [2018-12-02 03:38:30,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,721 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2018-12-02 03:38:30,721 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,725 INFO L82 PathProgramCache]: Analyzing trace with hash -790509965, now seen corresponding path program 1 times [2018-12-02 03:38:30,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,725 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 03:38:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:38:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:38:30,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:38:30,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:38:30,742 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 03:38:30,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:38:30,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:38:30,743 INFO L87 Difference]: Start difference. First operand 65 states and 97 transitions. cyclomatic complexity: 36 Second operand 3 states. [2018-12-02 03:38:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:38:30,751 INFO L93 Difference]: Finished difference Result 125 states and 181 transitions. [2018-12-02 03:38:30,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:38:30,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 181 transitions. [2018-12-02 03:38:30,753 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2018-12-02 03:38:30,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 181 transitions. [2018-12-02 03:38:30,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2018-12-02 03:38:30,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2018-12-02 03:38:30,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 181 transitions. [2018-12-02 03:38:30,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 03:38:30,754 INFO L705 BuchiCegarLoop]: Abstraction has 125 states and 181 transitions. [2018-12-02 03:38:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 181 transitions. [2018-12-02 03:38:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-02 03:38:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-02 03:38:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 181 transitions. [2018-12-02 03:38:30,759 INFO L728 BuchiCegarLoop]: Abstraction has 125 states and 181 transitions. [2018-12-02 03:38:30,759 INFO L608 BuchiCegarLoop]: Abstraction has 125 states and 181 transitions. [2018-12-02 03:38:30,759 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 03:38:30,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 181 transitions. [2018-12-02 03:38:30,760 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2018-12-02 03:38:30,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,760 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,760 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,761 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 399#L83-1 [2018-12-02 03:38:30,761 INFO L796 eck$LassoCheckResult]: Loop: 399#L83-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 411#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 412#L41 assume !(0 != main_~p1~0); 460#L41-2 assume !(0 != main_~p2~0); 457#L45-1 assume !(0 != main_~p3~0); 453#L49-1 assume !(0 != main_~p4~0); 449#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 447#L57-1 assume !(0 != main_~p1~0); 445#L63-1 assume !(0 != main_~p2~0); 442#L68-1 assume !(0 != main_~p3~0); 438#L73-1 assume !(0 != main_~p4~0); 439#L78-1 assume !(0 != main_~p5~0); 399#L83-1 [2018-12-02 03:38:30,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 4 times [2018-12-02 03:38:30,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash 984497397, now seen corresponding path program 1 times [2018-12-02 03:38:30,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,765 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 03:38:30,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:38:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:38:30,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:38:30,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 03:38:30,775 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 03:38:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:38:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:38:30,775 INFO L87 Difference]: Start difference. First operand 125 states and 181 transitions. cyclomatic complexity: 64 Second operand 3 states. [2018-12-02 03:38:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:38:30,786 INFO L93 Difference]: Finished difference Result 241 states and 337 transitions. [2018-12-02 03:38:30,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:38:30,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 337 transitions. [2018-12-02 03:38:30,788 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2018-12-02 03:38:30,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 337 transitions. [2018-12-02 03:38:30,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2018-12-02 03:38:30,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2018-12-02 03:38:30,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 337 transitions. [2018-12-02 03:38:30,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 03:38:30,790 INFO L705 BuchiCegarLoop]: Abstraction has 241 states and 337 transitions. [2018-12-02 03:38:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 337 transitions. [2018-12-02 03:38:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2018-12-02 03:38:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-12-02 03:38:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2018-12-02 03:38:30,798 INFO L728 BuchiCegarLoop]: Abstraction has 241 states and 337 transitions. [2018-12-02 03:38:30,798 INFO L608 BuchiCegarLoop]: Abstraction has 241 states and 337 transitions. [2018-12-02 03:38:30,798 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 03:38:30,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 337 transitions. [2018-12-02 03:38:30,799 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2018-12-02 03:38:30,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:38:30,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:38:30,799 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 03:38:30,799 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:38:30,800 INFO L794 eck$LassoCheckResult]: Stem: 770#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 771#L83-1 [2018-12-02 03:38:30,800 INFO L796 eck$LassoCheckResult]: Loop: 771#L83-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 832#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 826#L41 assume !(0 != main_~p1~0); 820#L41-2 assume !(0 != main_~p2~0); 814#L45-1 assume !(0 != main_~p3~0); 815#L49-1 assume !(0 != main_~p4~0); 865#L53-1 assume !(0 != main_~p5~0); 864#L57-1 assume !(0 != main_~p1~0); 862#L63-1 assume !(0 != main_~p2~0); 860#L68-1 assume !(0 != main_~p3~0); 857#L73-1 assume !(0 != main_~p4~0); 841#L78-1 assume !(0 != main_~p5~0); 771#L83-1 [2018-12-02 03:38:30,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,800 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 5 times [2018-12-02 03:38:30,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1041755699, now seen corresponding path program 1 times [2018-12-02 03:38:30,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,804 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 03:38:30,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:38:30,809 INFO L82 PathProgramCache]: Analyzing trace with hash 536197074, now seen corresponding path program 1 times [2018-12-02 03:38:30,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:38:30,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:38:30,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:38:30,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:38:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:38:30,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 03:38:30 BoogieIcfgContainer [2018-12-02 03:38:30,902 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 03:38:30,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:38:30,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:38:30,902 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:38:30,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:38:30" (3/4) ... [2018-12-02 03:38:30,904 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 03:38:30,931 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e79c013c-9e9e-4275-b8f6-805c88b8140f/bin-2019/uautomizer/witness.graphml [2018-12-02 03:38:30,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:38:30,931 INFO L168 Benchmark]: Toolchain (without parser) took 818.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 962.4 MB in the beginning and 981.0 MB in the end (delta: -18.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2018-12-02 03:38:30,932 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:38:30,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.47 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 03:38:30,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.09 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:38:30,933 INFO L168 Benchmark]: Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 03:38:30,933 INFO L168 Benchmark]: RCFGBuilder took 171.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 945.3 MB in the beginning and 1.0 GB in the end (delta: -99.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:38:30,934 INFO L168 Benchmark]: BuchiAutomizer took 464.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 981.0 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2018-12-02 03:38:30,934 INFO L168 Benchmark]: Witness Printer took 28.88 ms. Allocated memory is still 1.1 GB. Free memory is still 981.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:38:30,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.47 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.09 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.16 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 171.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 945.3 MB in the beginning and 1.0 GB in the end (delta: -99.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 464.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 981.0 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * Witness Printer took 28.88 ms. Allocated memory is still 1.1 GB. Free memory is still 981.0 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 241 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 5 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 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 241 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 173 SDtfs, 89 SDslu, 96 SDs, 0 SdLazy, 20 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 24]: 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 {p1=0, \result=0, p3=0, p2=0, p5=0, p4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47a00080=0, lk3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b5518d=0, lk4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e5c56f4=1, lk5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@586b6fa6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8f654a3=0, lk1=0, lk2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0e742c=0, cond=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L22] int cond; Loop: [L24] COND TRUE 1 [L25] cond = __VERIFIER_nondet_int() [L26] COND FALSE !(cond == 0) [L29] lk1 = 0 [L31] lk2 = 0 [L33] lk3 = 0 [L35] lk4 = 0 [L37] lk5 = 0 [L41] COND FALSE !(p1 != 0) [L45] COND FALSE !(p2 != 0) [L49] COND FALSE !(p3 != 0) [L53] COND FALSE !(p4 != 0) [L57] COND FALSE !(p5 != 0) [L63] COND FALSE !(p1 != 0) [L68] COND FALSE !(p2 != 0) [L73] COND FALSE !(p3 != 0) [L78] COND FALSE !(p4 != 0) [L83] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...