./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/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 1225f82562543767c482452e9133e4a69d5dae70 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-aa41828 [2018-11-23 14:25:24,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:25:24,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:25:24,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:25:24,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:25:24,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:25:24,654 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:25:24,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:25:24,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:25:24,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:25:24,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:25:24,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:25:24,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:25:24,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:25:24,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:25:24,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:25:24,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:25:24,662 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:25:24,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:25:24,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:25:24,665 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:25:24,666 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:25:24,668 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:25:24,668 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:25:24,668 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:25:24,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:25:24,669 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:25:24,670 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:25:24,670 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:25:24,671 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:25:24,671 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:25:24,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:25:24,672 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:25:24,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:25:24,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:25:24,673 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:25:24,673 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 14:25:24,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:25:24,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:25:24,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:25:24,685 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:25:24,685 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:25:24,685 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:25:24,685 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:25:24,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:25:24,686 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:25:24,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:25:24,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:25:24,688 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:25:24,689 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:25:24,689 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:25:24,689 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:25:24,689 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:25:24,690 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_f4138bf2-b715-40d0-a7d1-4490fc536fe0/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 -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-11-23 14:25:24,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:25:24,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:25:24,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:25:24,721 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:25:24,722 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:25:24,722 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-23 14:25:24,758 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/data/214201179/aa54eae5357b4a85b291b82afe27f747/FLAGa9d3fb071 [2018-11-23 14:25:25,143 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:25:25,143 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-23 14:25:25,148 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/data/214201179/aa54eae5357b4a85b291b82afe27f747/FLAGa9d3fb071 [2018-11-23 14:25:25,157 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/data/214201179/aa54eae5357b4a85b291b82afe27f747 [2018-11-23 14:25:25,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:25:25,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:25:25,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:25:25,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:25:25,163 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:25:25,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85f6425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25, skipping insertion in model container [2018-11-23 14:25:25,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:25:25,186 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:25:25,295 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:25:25,298 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:25:25,310 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:25:25,320 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:25:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25 WrapperNode [2018-11-23 14:25:25,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:25:25,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:25:25,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:25:25,321 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:25:25,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:25:25,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:25:25,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:25:25,344 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:25:25,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... [2018-11-23 14:25:25,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:25:25,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:25:25,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:25:25,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:25:25,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/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 [2018-11-23 14:25:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:25:25,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:25:25,597 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:25:25,597 INFO L280 CfgBuilder]: Removed 35 assue(true) statements. [2018-11-23 14:25:25,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:25 BoogieIcfgContainer [2018-11-23 14:25:25,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:25:25,598 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:25:25,598 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:25:25,602 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:25:25,602 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:25:25,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:25:25" (1/3) ... [2018-11-23 14:25:25,603 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d16be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:25:25, skipping insertion in model container [2018-11-23 14:25:25,604 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:25:25,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:25" (2/3) ... [2018-11-23 14:25:25,604 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d16be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:25:25, skipping insertion in model container [2018-11-23 14:25:25,604 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:25:25,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:25" (3/3) ... [2018-11-23 14:25:25,606 INFO L375 chiAutomizerObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-11-23 14:25:25,655 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:25:25,655 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:25:25,656 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:25:25,656 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:25:25,656 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:25:25,656 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:25:25,656 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:25:25,656 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:25:25,656 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:25:25,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2018-11-23 14:25:25,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2018-11-23 14:25:25,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:25:25,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:25:25,696 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 14:25:25,696 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 14:25:25,696 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:25:25,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2018-11-23 14:25:25,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2018-11-23 14:25:25,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:25:25,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:25:25,699 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 14:25:25,699 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 14:25:25,704 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue ~ldv_mutex~0 := 1;~open_called~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 27#L70true main_#t~ret1 := my_init_#res;havoc main_#t~ret1; 10#L76-2true [2018-11-23 14:25:25,704 INFO L796 eck$LassoCheckResult]: Loop: 10#L76-2true assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; 3#L80true assume main_#t~switch4; 28#L81true assume !(0 == main_~ldv_s_misc_fops_file_operations~0); 21#L78true havoc main_#t~nondet3;havoc main_#t~switch4; 10#L76-2true [2018-11-23 14:25:25,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,708 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2018-11-23 14:25:25,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:25:25,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1327177, now seen corresponding path program 1 times [2018-11-23 14:25:25,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:25:25,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1804166377, now seen corresponding path program 1 times [2018-11-23 14:25:25,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:25:25,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:25:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:25:25,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:25:25,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:25:25,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:25:25,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:25:25,880 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2018-11-23 14:25:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:25:25,927 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2018-11-23 14:25:25,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:25:25,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2018-11-23 14:25:25,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2018-11-23 14:25:25,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 41 states and 57 transitions. [2018-11-23 14:25:25,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-11-23 14:25:25,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2018-11-23 14:25:25,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 57 transitions. [2018-11-23 14:25:25,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:25:25,938 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2018-11-23 14:25:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 57 transitions. [2018-11-23 14:25:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-23 14:25:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 14:25:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2018-11-23 14:25:25,960 INFO L728 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2018-11-23 14:25:25,960 INFO L608 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2018-11-23 14:25:25,960 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:25:25,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 57 transitions. [2018-11-23 14:25:25,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2018-11-23 14:25:25,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:25:25,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:25:25,962 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 14:25:25,962 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 14:25:25,962 INFO L794 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY ~ldv_mutex~0 := 1;~open_called~0 := 0; 120#L-1 havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 121#L70 main_#t~ret1 := my_init_#res;havoc main_#t~ret1; 138#L76-2 [2018-11-23 14:25:25,962 INFO L796 eck$LassoCheckResult]: Loop: 138#L76-2 assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; 147#L80 assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; 145#L88 assume main_#t~switch4; 146#L89 assume !(1 == main_~ldv_s_misc_fops_file_operations~0); 141#L78 havoc main_#t~nondet3;havoc main_#t~switch4; 138#L76-2 [2018-11-23 14:25:25,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,963 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2018-11-23 14:25:25,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:25:25,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,970 INFO L82 PathProgramCache]: Analyzing trace with hash 41592519, now seen corresponding path program 1 times [2018-11-23 14:25:25,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,970 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,971 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:25:25,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:25:25,978 INFO L82 PathProgramCache]: Analyzing trace with hash 95032871, now seen corresponding path program 1 times [2018-11-23 14:25:25,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:25:25,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:25:25,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:25:25,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:25:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:25:26,074 WARN L1272 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~ldv_mutex~0 := 1;~open_called~0 := 0; [?] havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; [?] main_#t~ret1 := my_init_#res;havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; [?] assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [?] assume main_#t~switch4; [?] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [?] havoc main_#t~nondet3;havoc main_#t~switch4; [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) ----- [2018-11-23 14:25:26,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:25:26 BoogieIcfgContainer [2018-11-23 14:25:26,084 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 14:25:26,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:25:26,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:25:26,085 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:25:26,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:25" (3/4) ... [2018-11-23 14:25:26,087 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~ldv_mutex~0 := 1;~open_called~0 := 0; [?] havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; [?] main_#t~ret1 := my_init_#res;havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; [?] assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [?] assume main_#t~switch4; [?] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [?] havoc main_#t~nondet3;havoc main_#t~switch4; [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) ----- [2018-11-23 14:25:26,115 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f4138bf2-b715-40d0-a7d1-4490fc536fe0/bin-2019/uautomizer/witness.graphml [2018-11-23 14:25:26,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:25:26,115 INFO L168 Benchmark]: Toolchain (without parser) took 955.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -109.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,116 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:25:26,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.84 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,118 INFO L168 Benchmark]: Boogie Preprocessor took 49.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,118 INFO L168 Benchmark]: RCFGBuilder took 204.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,119 INFO L168 Benchmark]: BuchiAutomizer took 486.23 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:25:26,119 INFO L168 Benchmark]: Witness Printer took 30.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:25:26,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.84 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 486.23 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. * Witness Printer took 30.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * 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 41 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 2 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 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 41 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 46 SDtfs, 22 SDslu, 35 SDs, 0 SdLazy, 15 SolverSat, 5 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: 76]: Nontermination argument in form of an infinite program execution. [2018-11-23 14:25:26,127 WARN L1272 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-23 14:25:26,128 WARN L1272 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@616156f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@148c4dc5=0, \result=0, ldv_mutex=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fb75ad5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@76751cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15be5af9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2130e919=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58a70689=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4117327=1, NULL=0, open_called=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bdb1ef5=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6da00a6f=0, ldv_s_misc_fops_file_operations=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 76]: Nonterminating execution ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~ldv_mutex~0 := 1;~open_called~0 := 0; [?] havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; [?] main_#t~ret1 := my_init_#res;havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; [?] assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [?] assume main_#t~switch4; [?] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [?] havoc main_#t~nondet3;havoc main_#t~switch4; [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] ~ldv_mutex~0 := 1;~open_called~0 := 0; [?] havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; [?] main_#t~ret1 := my_init_#res;havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [?] havoc main_#res; [?] havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0; [L74] main_~ldv_s_misc_fops_file_operations~0 := 0; [L75] havoc my_init_#res; [L69] ~open_called~0 := 0; [L70] my_init_#res := 0; [L75] main_#t~ret1 := my_init_#res; [L75] havoc main_#t~ret1; [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L9] ~ldv_mutex~0 := 1; [L11] ~open_called~0 := 0; [L74] ~ldv_s_misc_fops_file_operations~0 := 0; [L69] ~open_called~0 := 0; [L70] #res := 0; [L75] havoc #t~ret1; [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; [?] assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [?] assume main_#t~switch4; [?] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [?] havoc main_#t~nondet3;havoc main_#t~switch4; [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L76-L114] assume !!(0 != main_#t~nondet2); [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L80] assume !main_#t~switch4; [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L88] assume main_#t~switch4; [L89-L92] assume !(1 == main_~ldv_s_misc_fops_file_operations~0); [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L76-L114] COND FALSE !(!(0 != main_#t~nondet2)) [L76] havoc main_#t~nondet2; [L80] main_#t~switch4 := 0 == main_#t~nondet3; [L78-L113] COND FALSE !(main_#t~switch4) [L88] main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; [L78-L113] COND TRUE main_#t~switch4 [L89] COND FALSE !(1 == main_~ldv_s_misc_fops_file_operations~0) [L78] havoc main_#t~nondet3; [L78-L113] havoc main_#t~switch4; [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L76-L114] COND FALSE !(!(0 != #t~nondet2)) [L76] havoc #t~nondet2; [L80] #t~switch4 := 0 == #t~nondet3; [L78-L113] COND FALSE !(#t~switch4) [L88] #t~switch4 := #t~switch4 || 1 == #t~nondet3; [L78-L113] COND TRUE #t~switch4 [L89] COND FALSE !(1 == ~ldv_s_misc_fops_file_operations~0) [L78] havoc #t~nondet3; [L78-L113] havoc #t~switch4; [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) ----- Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; Loop: [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...