./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4892275a211cad54ffe3d940980c258aec58e47d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:48:08,883 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:48:08,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:48:08,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:48:08,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:48:08,894 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:48:08,895 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:48:08,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:48:08,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:48:08,898 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:48:08,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:48:08,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:48:08,900 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:48:08,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:48:08,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:48:08,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:48:08,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:48:08,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:48:08,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:48:08,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:48:08,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:48:08,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:48:08,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:48:08,913 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:48:08,913 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:48:08,914 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:48:08,915 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:48:08,915 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:48:08,916 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:48:08,917 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:48:08,917 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:48:08,918 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:48:08,918 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:48:08,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:48:08,919 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:48:08,920 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:48:08,920 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 11:48:08,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:48:08,930 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:48:08,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:48:08,930 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:48:08,931 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:48:08,931 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:48:08,931 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 11:48:08,931 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:48:08,931 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 11:48:08,931 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 11:48:08,932 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:48:08,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:48:08,932 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:48:08,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:48:08,933 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:48:08,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:48:08,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:48:08,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:48:08,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:48:08,935 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:48:08,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:48:08,936 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:48:08,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:48:08,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:48:08,936 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:48:08,936 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:48:08,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:48:08,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:48:08,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:48:08,938 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan 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(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 4892275a211cad54ffe3d940980c258aec58e47d [2018-11-10 11:48:08,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:48:08,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:48:08,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:48:08,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:48:08,980 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:48:08,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/../../sv-benchmarks/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-10 11:48:09,025 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/data/74cd711f4/e09d75fa36ce40c0b217ebd62b44652b/FLAGaa56b8a28 [2018-11-10 11:48:09,404 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:48:09,405 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/sv-benchmarks/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-10 11:48:09,414 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/data/74cd711f4/e09d75fa36ce40c0b217ebd62b44652b/FLAGaa56b8a28 [2018-11-10 11:48:09,425 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/data/74cd711f4/e09d75fa36ce40c0b217ebd62b44652b [2018-11-10 11:48:09,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:48:09,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:48:09,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:09,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:48:09,434 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:48:09,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09, skipping insertion in model container [2018-11-10 11:48:09,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:48:09,463 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:48:09,605 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:09,608 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:48:09,635 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:09,648 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:48:09,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09 WrapperNode [2018-11-10 11:48:09,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:09,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:09,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:48:09,650 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:48:09,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:09,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:48:09,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:48:09,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:48:09,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... [2018-11-10 11:48:09,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:48:09,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:48:09,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:48:09,694 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:48:09,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:48:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:48:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:48:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:48:10,042 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:48:10,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:10 BoogieIcfgContainer [2018-11-10 11:48:10,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:48:10,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:48:10,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:48:10,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:48:10,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:48:09" (1/3) ... [2018-11-10 11:48:10,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d94e5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:10, skipping insertion in model container [2018-11-10 11:48:10,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:09" (2/3) ... [2018-11-10 11:48:10,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d94e5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:48:10, skipping insertion in model container [2018-11-10 11:48:10,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:10" (3/3) ... [2018-11-10 11:48:10,049 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-10 11:48:10,056 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:48:10,062 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:48:10,073 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:48:10,103 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:48:10,103 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:48:10,104 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:48:10,104 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:48:10,104 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:48:10,104 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:48:10,104 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:48:10,104 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:48:10,121 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-10 11:48:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:48:10,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:10,126 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:10,128 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:10,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:10,132 INFO L82 PathProgramCache]: Analyzing trace with hash -26794943, now seen corresponding path program 1 times [2018-11-10 11:48:10,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:48:10,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:10,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,177 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:48:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:10,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:10,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:48:10,302 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:48:10,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:48:10,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:48:10,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,317 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 3 states. [2018-11-10 11:48:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:10,378 INFO L93 Difference]: Finished difference Result 119 states and 212 transitions. [2018-11-10 11:48:10,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:48:10,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-10 11:48:10,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:10,392 INFO L225 Difference]: With dead ends: 119 [2018-11-10 11:48:10,392 INFO L226 Difference]: Without dead ends: 104 [2018-11-10 11:48:10,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-10 11:48:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 71. [2018-11-10 11:48:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-10 11:48:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 130 transitions. [2018-11-10 11:48:10,429 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 130 transitions. Word has length 26 [2018-11-10 11:48:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:10,429 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 130 transitions. [2018-11-10 11:48:10,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:48:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 130 transitions. [2018-11-10 11:48:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:48:10,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:10,430 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:10,431 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:10,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:10,431 INFO L82 PathProgramCache]: Analyzing trace with hash -26787751, now seen corresponding path program 1 times [2018-11-10 11:48:10,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:48:10,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:10,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,432 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:48:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:10,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:10,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:48:10,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:48:10,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:48:10,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:48:10,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,486 INFO L87 Difference]: Start difference. First operand 71 states and 130 transitions. Second operand 3 states. [2018-11-10 11:48:10,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:10,508 INFO L93 Difference]: Finished difference Result 171 states and 317 transitions. [2018-11-10 11:48:10,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:48:10,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-10 11:48:10,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:10,509 INFO L225 Difference]: With dead ends: 171 [2018-11-10 11:48:10,509 INFO L226 Difference]: Without dead ends: 105 [2018-11-10 11:48:10,510 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-11-10 11:48:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2018-11-10 11:48:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-11-10 11:48:10,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 189 transitions. [2018-11-10 11:48:10,517 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 189 transitions. Word has length 26 [2018-11-10 11:48:10,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:10,517 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 189 transitions. [2018-11-10 11:48:10,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:48:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 189 transitions. [2018-11-10 11:48:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:48:10,518 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:10,518 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:10,518 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:10,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:10,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2020939649, now seen corresponding path program 1 times [2018-11-10 11:48:10,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:48:10,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:10,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,520 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:48:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:10,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:10,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:48:10,564 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:48:10,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:48:10,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:48:10,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,565 INFO L87 Difference]: Start difference. First operand 103 states and 189 transitions. Second operand 3 states. [2018-11-10 11:48:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:10,582 INFO L93 Difference]: Finished difference Result 159 states and 286 transitions. [2018-11-10 11:48:10,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:48:10,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-10 11:48:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:10,584 INFO L225 Difference]: With dead ends: 159 [2018-11-10 11:48:10,584 INFO L226 Difference]: Without dead ends: 108 [2018-11-10 11:48:10,585 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-10 11:48:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2018-11-10 11:48:10,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-10 11:48:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 190 transitions. [2018-11-10 11:48:10,595 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 190 transitions. Word has length 26 [2018-11-10 11:48:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:10,595 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 190 transitions. [2018-11-10 11:48:10,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:48:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 190 transitions. [2018-11-10 11:48:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:48:10,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:10,596 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:10,596 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:10,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:10,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2020932457, now seen corresponding path program 1 times [2018-11-10 11:48:10,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:48:10,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:10,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,597 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:48:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:48:10,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:48:10,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:48:10,640 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:48:10,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:48:10,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:48:10,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,641 INFO L87 Difference]: Start difference. First operand 106 states and 190 transitions. Second operand 3 states. [2018-11-10 11:48:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:48:10,669 INFO L93 Difference]: Finished difference Result 238 states and 434 transitions. [2018-11-10 11:48:10,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:48:10,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-10 11:48:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:48:10,671 INFO L225 Difference]: With dead ends: 238 [2018-11-10 11:48:10,672 INFO L226 Difference]: Without dead ends: 141 [2018-11-10 11:48:10,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:48:10,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-10 11:48:10,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2018-11-10 11:48:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-10 11:48:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 249 transitions. [2018-11-10 11:48:10,679 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 249 transitions. Word has length 26 [2018-11-10 11:48:10,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:48:10,680 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 249 transitions. [2018-11-10 11:48:10,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:48:10,680 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 249 transitions. [2018-11-10 11:48:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:48:10,681 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:48:10,681 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:48:10,681 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:48:10,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:10,682 INFO L82 PathProgramCache]: Analyzing trace with hash 685686937, now seen corresponding path program 1 times [2018-11-10 11:48:10,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:48:10,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:48:10,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:48:10,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:48:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:10,746 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:48:10,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:48:10 BoogieIcfgContainer [2018-11-10 11:48:10,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:48:10,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:48:10,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:48:10,784 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:48:10,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:10" (3/4) ... [2018-11-10 11:48:10,786 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:48:10,841 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a328cc9e-6ce9-4b2c-b844-bbad078ea323/bin-2019/utaipan/witness.graphml [2018-11-10 11:48:10,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:48:10,842 INFO L168 Benchmark]: Toolchain (without parser) took 1413.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -104.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,843 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:10,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:10,844 INFO L168 Benchmark]: Boogie Preprocessor took 26.50 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,845 INFO L168 Benchmark]: RCFGBuilder took 348.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,845 INFO L168 Benchmark]: TraceAbstraction took 740.60 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,845 INFO L168 Benchmark]: Witness Printer took 56.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:10,847 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 219.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.26 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.50 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 348.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 740.60 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * Witness Printer took 56.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 231]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [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; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L48] int p15 = __VERIFIER_nondet_int(); [L49] int lk15; [L52] int cond; VAL [p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L54] COND TRUE 1 [L55] cond = __VERIFIER_nondet_int() [L56] COND FALSE !(cond == 0) [L59] lk1 = 0 [L61] lk2 = 0 [L63] lk3 = 0 [L65] lk4 = 0 [L67] lk5 = 0 [L69] lk6 = 0 [L71] lk7 = 0 [L73] lk8 = 0 [L75] lk9 = 0 [L77] lk10 = 0 [L79] lk11 = 0 [L81] lk12 = 0 [L83] lk13 = 0 [L85] lk14 = 0 [L87] lk15 = 0 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L91] COND FALSE !(p1 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L95] COND FALSE !(p2 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L99] COND TRUE p3 != 0 [L100] lk3 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L103] COND TRUE p4 != 0 [L104] lk4 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L107] COND FALSE !(p5 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L111] COND TRUE p6 != 0 [L112] lk6 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L115] COND TRUE p7 != 0 [L116] lk7 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L119] COND TRUE p8 != 0 [L120] lk8 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L123] COND TRUE p9 != 0 [L124] lk9 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L127] COND TRUE p10 != 0 [L128] lk10 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L131] COND TRUE p11 != 0 [L132] lk11 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=0, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L135] COND TRUE p12 != 0 [L136] lk12 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L139] COND FALSE !(p13 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=0, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L143] COND TRUE p14 != 0 [L144] lk14 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk15=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L147] COND TRUE p15 != 0 [L148] lk15 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L153] COND FALSE !(p1 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L158] COND FALSE !(p2 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L231] __VERIFIER_error() VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk15=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=1, p15=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 305 SDslu, 324 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 6300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...