./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/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 ccd6d122756047ddb1225c106ac06a6748e14c22 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:55:37,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:55:37,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:55:37,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:55:37,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:55:37,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:55:37,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:55:37,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:55:37,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:55:37,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:55:37,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:55:37,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:55:37,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:55:37,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:55:37,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:55:37,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:55:37,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:55:37,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:55:37,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:55:37,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:55:37,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:55:37,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:55:37,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:55:37,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:55:37,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:55:37,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:55:37,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:55:37,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:55:37,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:55:37,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:55:37,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:55:37,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:55:37,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:55:37,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:55:37,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:55:37,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:55:37,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:55:37,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:55:37,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:55:37,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:55:37,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:55:37,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:55:37,525 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:55:37,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:55:37,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:55:37,526 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:55:37,526 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:55:37,526 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:55:37,526 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:55:37,526 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:55:37,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:55:37,527 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:55:37,527 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:55:37,527 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:55:37,527 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:55:37,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:55:37,527 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:55:37,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:55:37,528 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:55:37,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:55:37,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:55:37,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:55:37,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:55:37,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:55:37,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:55:37,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:55:37,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:55:37,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:55:37,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:55:37,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:55:37,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:55:37,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:55:37,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:55:37,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:55:37,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:55:37,532 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:55:37,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:55:37,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:55:37,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:55:37,532 INFO L138 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/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/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 -> ccd6d122756047ddb1225c106ac06a6748e14c22 [2019-11-26 02:55:37,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:55:37,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:55:37,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:55:37,690 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:55:37,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:55:37,691 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/../../sv-benchmarks/c/locks/test_locks_7.c [2019-11-26 02:55:37,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/data/abbeeb5f4/be7e6bdb1ad646f2bfbcbeccedd604eb/FLAGa6a75d779 [2019-11-26 02:55:38,164 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:55:38,166 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/sv-benchmarks/c/locks/test_locks_7.c [2019-11-26 02:55:38,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/data/abbeeb5f4/be7e6bdb1ad646f2bfbcbeccedd604eb/FLAGa6a75d779 [2019-11-26 02:55:38,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/data/abbeeb5f4/be7e6bdb1ad646f2bfbcbeccedd604eb [2019-11-26 02:55:38,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:55:38,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:55:38,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:38,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:55:38,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:55:38,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e8df4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38, skipping insertion in model container [2019-11-26 02:55:38,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:55:38,230 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:55:38,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:38,448 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:55:38,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:38,479 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:55:38,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38 WrapperNode [2019-11-26 02:55:38,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:38,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:38,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:55:38,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:55:38,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:38,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:55:38,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:55:38,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:55:38,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... [2019-11-26 02:55:38,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:55:38,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:55:38,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:55:38,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:55:38,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/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 [2019-11-26 02:55:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:55:38,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:55:38,973 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:55:38,973 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:55:38,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:38 BoogieIcfgContainer [2019-11-26 02:55:38,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:55:38,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:55:38,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:55:38,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:55:38,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:55:38" (1/3) ... [2019-11-26 02:55:38,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76022eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:55:38, skipping insertion in model container [2019-11-26 02:55:38,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:38" (2/3) ... [2019-11-26 02:55:38,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76022eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:55:38, skipping insertion in model container [2019-11-26 02:55:38,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:38" (3/3) ... [2019-11-26 02:55:38,981 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_7.c [2019-11-26 02:55:38,990 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:55:38,996 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:55:39,006 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:55:39,025 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:55:39,025 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:55:39,025 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:55:39,025 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:55:39,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:55:39,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:55:39,026 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:55:39,026 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:55:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-26 02:55:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:55:39,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,042 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,046 INFO L82 PathProgramCache]: Analyzing trace with hash 930194355, now seen corresponding path program 1 times [2019-11-26 02:55:39,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875471999] [2019-11-26 02:55:39,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875471999] [2019-11-26 02:55:39,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864356011] [2019-11-26 02:55:39,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,214 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2019-11-26 02:55:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,268 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2019-11-26 02:55:39,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-26 02:55:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,280 INFO L225 Difference]: With dead ends: 46 [2019-11-26 02:55:39,280 INFO L226 Difference]: Without dead ends: 35 [2019-11-26 02:55:39,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-26 02:55:39,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 19. [2019-11-26 02:55:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 31 transitions. [2019-11-26 02:55:39,318 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 31 transitions. Word has length 6 [2019-11-26 02:55:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,318 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 31 transitions. [2019-11-26 02:55:39,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2019-11-26 02:55:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:55:39,319 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1228531748, now seen corresponding path program 1 times [2019-11-26 02:55:39,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320379798] [2019-11-26 02:55:39,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320379798] [2019-11-26 02:55:39,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638485849] [2019-11-26 02:55:39,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,390 INFO L87 Difference]: Start difference. First operand 19 states and 31 transitions. Second operand 4 states. [2019-11-26 02:55:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,410 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2019-11-26 02:55:39,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-26 02:55:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,411 INFO L225 Difference]: With dead ends: 35 [2019-11-26 02:55:39,411 INFO L226 Difference]: Without dead ends: 33 [2019-11-26 02:55:39,412 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-26 02:55:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2019-11-26 02:55:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2019-11-26 02:55:39,416 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 30 transitions. Word has length 7 [2019-11-26 02:55:39,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,417 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 30 transitions. [2019-11-26 02:55:39,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2019-11-26 02:55:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:55:39,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,417 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,418 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,418 INFO L82 PathProgramCache]: Analyzing trace with hash 570436136, now seen corresponding path program 1 times [2019-11-26 02:55:39,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978211725] [2019-11-26 02:55:39,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,462 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978211725] [2019-11-26 02:55:39,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669516455] [2019-11-26 02:55:39,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,463 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 4 states. [2019-11-26 02:55:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,488 INFO L93 Difference]: Finished difference Result 33 states and 50 transitions. [2019-11-26 02:55:39,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-26 02:55:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,490 INFO L225 Difference]: With dead ends: 33 [2019-11-26 02:55:39,490 INFO L226 Difference]: Without dead ends: 31 [2019-11-26 02:55:39,490 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-26 02:55:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 19. [2019-11-26 02:55:39,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 29 transitions. [2019-11-26 02:55:39,494 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 29 transitions. Word has length 8 [2019-11-26 02:55:39,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,495 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 29 transitions. [2019-11-26 02:55:39,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2019-11-26 02:55:39,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:55:39,495 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,496 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,496 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,496 INFO L82 PathProgramCache]: Analyzing trace with hash 503866033, now seen corresponding path program 1 times [2019-11-26 02:55:39,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462176708] [2019-11-26 02:55:39,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462176708] [2019-11-26 02:55:39,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428910482] [2019-11-26 02:55:39,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,553 INFO L87 Difference]: Start difference. First operand 19 states and 29 transitions. Second operand 4 states. [2019-11-26 02:55:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,576 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2019-11-26 02:55:39,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-26 02:55:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,577 INFO L225 Difference]: With dead ends: 31 [2019-11-26 02:55:39,577 INFO L226 Difference]: Without dead ends: 29 [2019-11-26 02:55:39,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-26 02:55:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-11-26 02:55:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2019-11-26 02:55:39,581 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 28 transitions. Word has length 9 [2019-11-26 02:55:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,582 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 28 transitions. [2019-11-26 02:55:39,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2019-11-26 02:55:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:55:39,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,582 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1559806819, now seen corresponding path program 1 times [2019-11-26 02:55:39,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105772504] [2019-11-26 02:55:39,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105772504] [2019-11-26 02:55:39,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442413129] [2019-11-26 02:55:39,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,631 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. Second operand 4 states. [2019-11-26 02:55:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,653 INFO L93 Difference]: Finished difference Result 29 states and 40 transitions. [2019-11-26 02:55:39,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-26 02:55:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,654 INFO L225 Difference]: With dead ends: 29 [2019-11-26 02:55:39,654 INFO L226 Difference]: Without dead ends: 27 [2019-11-26 02:55:39,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-26 02:55:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2019-11-26 02:55:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2019-11-26 02:55:39,658 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 27 transitions. Word has length 10 [2019-11-26 02:55:39,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,658 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 27 transitions. [2019-11-26 02:55:39,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2019-11-26 02:55:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:55:39,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,659 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,659 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1109155450, now seen corresponding path program 1 times [2019-11-26 02:55:39,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490499945] [2019-11-26 02:55:39,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490499945] [2019-11-26 02:55:39,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335652519] [2019-11-26 02:55:39,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,716 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. Second operand 4 states. [2019-11-26 02:55:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,742 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2019-11-26 02:55:39,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-26 02:55:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,744 INFO L225 Difference]: With dead ends: 27 [2019-11-26 02:55:39,744 INFO L226 Difference]: Without dead ends: 25 [2019-11-26 02:55:39,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-26 02:55:39,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2019-11-26 02:55:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-26 02:55:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-11-26 02:55:39,747 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 11 [2019-11-26 02:55:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,747 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-26 02:55:39,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2019-11-26 02:55:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:55:39,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:39,748 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:39,749 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:39,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:39,749 INFO L82 PathProgramCache]: Analyzing trace with hash -23864558, now seen corresponding path program 1 times [2019-11-26 02:55:39,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:39,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604467387] [2019-11-26 02:55:39,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:39,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604467387] [2019-11-26 02:55:39,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:39,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:55:39,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133139153] [2019-11-26 02:55:39,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:55:39,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:55:39,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,796 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand 4 states. [2019-11-26 02:55:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:39,819 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2019-11-26 02:55:39,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:55:39,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-26 02:55:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:39,820 INFO L225 Difference]: With dead ends: 21 [2019-11-26 02:55:39,820 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:55:39,821 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:55:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:55:39,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:55:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:55:39,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:55:39,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-26 02:55:39,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:39,822 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:55:39,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:55:39,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:55:39,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:55:39,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:55:39,845 INFO L444 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2019-11-26 02:55:39,845 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:55:39,845 INFO L444 ceAbstractionStarter]: For program point L86-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,845 INFO L447 ceAbstractionStarter]: At program point L111-1(lines 30 116) the Hoare annotation is: true [2019-11-26 02:55:39,845 INFO L447 ceAbstractionStarter]: At program point L120(lines 4 121) the Hoare annotation is: true [2019-11-26 02:55:39,845 INFO L444 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2019-11-26 02:55:39,845 INFO L444 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L440 ceAbstractionStarter]: At program point L112-1(lines 5 121) the Hoare annotation is: false [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L96-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L81-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L106-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2019-11-26 02:55:39,846 INFO L444 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point L91-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point L75-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2019-11-26 02:55:39,847 INFO L447 ceAbstractionStarter]: At program point L117(lines 5 121) the Hoare annotation is: true [2019-11-26 02:55:39,847 INFO L444 ceAbstractionStarter]: For program point L101-1(lines 30 116) no Hoare annotation was computed. [2019-11-26 02:55:39,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:55:39 BoogieIcfgContainer [2019-11-26 02:55:39,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:55:39,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:55:39,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:55:39,859 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:55:39,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:38" (3/4) ... [2019-11-26 02:55:39,862 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:55:39,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:55:39,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:55:39,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:55:39,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28515a80-5957-4392-81b1-ffd1eb564bb1/bin/utaipan/witness.graphml [2019-11-26 02:55:39,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:55:39,984 INFO L168 Benchmark]: Toolchain (without parser) took 1790.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -74.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:39,985 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:55:39,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:39,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.04 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. [2019-11-26 02:55:39,986 INFO L168 Benchmark]: Boogie Preprocessor took 20.39 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. [2019-11-26 02:55:39,987 INFO L168 Benchmark]: RCFGBuilder took 444.46 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:39,987 INFO L168 Benchmark]: TraceAbstraction took 882.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:39,988 INFO L168 Benchmark]: Witness Printer took 123.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:39,992 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.04 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. * Boogie Preprocessor took 20.39 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. * RCFGBuilder took 444.46 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 882.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * Witness Printer took 123.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 119]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 187 SDtfs, 156 SDslu, 263 SDs, 0 SdLazy, 63 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 66 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...