./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/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 cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 17:25:37,957 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:25:37,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:25:37,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:25:37,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:25:37,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:25:37,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:25:37,970 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:25:37,971 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:25:37,972 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:25:37,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:25:37,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:25:37,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:25:37,974 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:25:37,975 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:25:37,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:25:37,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:25:37,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:25:37,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:25:37,980 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:25:37,980 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:25:37,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:25:37,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:25:37,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:25:37,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:25:37,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:25:37,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:25:37,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:25:37,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:25:37,987 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:25:37,987 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:25:37,987 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:25:37,988 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:25:37,988 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:25:37,988 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:25:37,989 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:25:37,989 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 17:25:37,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:25:37,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:25:38,000 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:25:38,000 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:25:38,000 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:25:38,000 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:25:38,000 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:25:38,000 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:25:38,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:25:38,001 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:25:38,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 17:25:38,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:25:38,003 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:25:38,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:25:38,004 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 17:25:38,004 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:25:38,004 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:25:38,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:25:38,004 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 17:25:38,004 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_5b5a1d84-1091-4a76-96b9-bc4d350a6237/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 -> cf11dc2c0dcdaf487958c9a5ab0d668b271e1541 [2018-12-02 17:25:38,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:25:38,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:25:38,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:25:38,040 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:25:38,040 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:25:38,041 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2018-12-02 17:25:38,081 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/data/0f8afc37b/d3c52b0f2bf4426c9c5f44e557cef526/FLAG1d50a4256 [2018-12-02 17:25:38,523 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:25:38,523 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/sv-benchmarks/c/pthread-wmm/safe020_pso.opt_true-unreach-call.i [2018-12-02 17:25:38,531 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/data/0f8afc37b/d3c52b0f2bf4426c9c5f44e557cef526/FLAG1d50a4256 [2018-12-02 17:25:38,539 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/data/0f8afc37b/d3c52b0f2bf4426c9c5f44e557cef526 [2018-12-02 17:25:38,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:25:38,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:25:38,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:25:38,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:25:38,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:25:38,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ee20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38, skipping insertion in model container [2018-12-02 17:25:38,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:25:38,570 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:25:38,730 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:25:38,737 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:25:38,796 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:25:38,828 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:25:38,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38 WrapperNode [2018-12-02 17:25:38,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:25:38,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:25:38,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:25:38,829 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:25:38,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:25:38,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:25:38,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:25:38,856 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:25:38,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... [2018-12-02 17:25:38,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:25:38,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:25:38,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:25:38,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:25:38,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/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 [2018-12-02 17:25:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 17:25:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 17:25:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-02 17:25:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 17:25:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-02 17:25:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-02 17:25:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-02 17:25:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-02 17:25:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-02 17:25:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-02 17:25:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-02 17:25:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:25:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:25:38,908 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 17:25:39,054 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:25:39,055 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 17:25:39,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:39 BoogieIcfgContainer [2018-12-02 17:25:39,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:25:39,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:25:39,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:25:39,057 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:25:39,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:25:38" (1/3) ... [2018-12-02 17:25:39,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad96192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:25:39, skipping insertion in model container [2018-12-02 17:25:39,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:38" (2/3) ... [2018-12-02 17:25:39,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad96192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:25:39, skipping insertion in model container [2018-12-02 17:25:39,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:39" (3/3) ... [2018-12-02 17:25:39,060 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt_true-unreach-call.i [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,080 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,081 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,082 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,083 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,084 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:25:39,091 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 17:25:39,091 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:25:39,096 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 17:25:39,106 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 17:25:39,122 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:25:39,123 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 17:25:39,123 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:25:39,123 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:25:39,123 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:25:39,123 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:25:39,123 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:25:39,123 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:25:39,131 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-12-02 17:25:39,194 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-12-02 17:25:39,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-12-02 17:25:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 17:25:39,207 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:39,208 INFO L402 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, 1, 1, 1] [2018-12-02 17:25:39,210 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:39,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:39,214 INFO L82 PathProgramCache]: Analyzing trace with hash -2034524401, now seen corresponding path program 1 times [2018-12-02 17:25:39,216 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:25:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,260 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:39,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:39,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 17:25:39,389 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:39,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:25:39,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:25:39,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:25:39,402 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-12-02 17:25:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:39,474 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-12-02 17:25:39,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:25:39,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-02 17:25:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:39,493 INFO L225 Difference]: With dead ends: 2492 [2018-12-02 17:25:39,493 INFO L226 Difference]: Without dead ends: 1127 [2018-12-02 17:25:39,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:25:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-12-02 17:25:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-12-02 17:25:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-12-02 17:25:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-12-02 17:25:39,557 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-12-02 17:25:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:39,557 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-12-02 17:25:39,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:25:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-12-02 17:25:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 17:25:39,559 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:39,559 INFO L402 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, 1, 1, 1, 1] [2018-12-02 17:25:39,559 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:39,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:39,559 INFO L82 PathProgramCache]: Analyzing trace with hash -35343599, now seen corresponding path program 1 times [2018-12-02 17:25:39,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:39,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:25:39,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,563 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:39,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:39,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:25:39,613 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:39,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:25:39,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:25:39,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:25:39,615 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-12-02 17:25:39,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:39,648 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-12-02 17:25:39,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:25:39,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-02 17:25:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:39,652 INFO L225 Difference]: With dead ends: 1167 [2018-12-02 17:25:39,652 INFO L226 Difference]: Without dead ends: 1043 [2018-12-02 17:25:39,653 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:25:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-12-02 17:25:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-12-02 17:25:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-12-02 17:25:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-12-02 17:25:39,672 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-12-02 17:25:39,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:39,673 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-12-02 17:25:39,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:25:39,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-12-02 17:25:39,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 17:25:39,674 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:39,674 INFO L402 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, 1, 1, 1, 1, 1] [2018-12-02 17:25:39,675 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:39,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:39,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1463535297, now seen corresponding path program 1 times [2018-12-02 17:25:39,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:39,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:25:39,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,678 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:39,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:39,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 17:25:39,737 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:39,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 17:25:39,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 17:25:39,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 17:25:39,738 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-12-02 17:25:39,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:39,786 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-12-02 17:25:39,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:25:39,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-02 17:25:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:39,789 INFO L225 Difference]: With dead ends: 819 [2018-12-02 17:25:39,790 INFO L226 Difference]: Without dead ends: 707 [2018-12-02 17:25:39,790 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-12-02 17:25:39,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-12-02 17:25:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-12-02 17:25:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-12-02 17:25:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-12-02 17:25:39,808 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-12-02 17:25:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:39,808 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-12-02 17:25:39,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 17:25:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-12-02 17:25:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:25:39,810 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:39,810 INFO L402 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, 1, 1, 1, 1, 1, 1] [2018-12-02 17:25:39,810 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:39,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:39,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1549733045, now seen corresponding path program 1 times [2018-12-02 17:25:39,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:39,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:25:39,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:39,814 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:39,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:39,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 17:25:39,946 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:39,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 17:25:39,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 17:25:39,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 17:25:39,947 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2018-12-02 17:25:40,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:40,084 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2018-12-02 17:25:40,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 17:25:40,085 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-12-02 17:25:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:40,088 INFO L225 Difference]: With dead ends: 1107 [2018-12-02 17:25:40,088 INFO L226 Difference]: Without dead ends: 591 [2018-12-02 17:25:40,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-12-02 17:25:40,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-12-02 17:25:40,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2018-12-02 17:25:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-12-02 17:25:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2018-12-02 17:25:40,103 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2018-12-02 17:25:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:40,103 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2018-12-02 17:25:40,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 17:25:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2018-12-02 17:25:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:25:40,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:40,105 INFO L402 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, 1, 1, 1, 1, 1, 1] [2018-12-02 17:25:40,105 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:40,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:40,106 INFO L82 PathProgramCache]: Analyzing trace with hash -813130677, now seen corresponding path program 2 times [2018-12-02 17:25:40,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:40,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:40,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:25:40,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:40,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:40,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:40,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 17:25:40,191 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:40,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 17:25:40,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 17:25:40,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:25:40,192 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 8 states. [2018-12-02 17:25:40,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:40,302 INFO L93 Difference]: Finished difference Result 975 states and 2938 transitions. [2018-12-02 17:25:40,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 17:25:40,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-12-02 17:25:40,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:40,304 INFO L225 Difference]: With dead ends: 975 [2018-12-02 17:25:40,305 INFO L226 Difference]: Without dead ends: 555 [2018-12-02 17:25:40,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-12-02 17:25:40,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-12-02 17:25:40,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-12-02 17:25:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-12-02 17:25:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-12-02 17:25:40,317 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-12-02 17:25:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:40,317 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-12-02 17:25:40,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 17:25:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-12-02 17:25:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:25:40,318 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:25:40,318 INFO L402 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, 1, 1, 1, 1, 1, 1] [2018-12-02 17:25:40,319 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:25:40,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:25:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash -126223495, now seen corresponding path program 3 times [2018-12-02 17:25:40,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:25:40,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:40,321 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 17:25:40,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:25:40,322 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:25:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:25:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:25:40,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:25:40,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 17:25:40,385 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:25:40,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:25:40,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:25:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:25:40,386 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2018-12-02 17:25:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:25:40,434 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-12-02 17:25:40,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:25:40,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-12-02 17:25:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:25:40,434 INFO L225 Difference]: With dead ends: 427 [2018-12-02 17:25:40,434 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 17:25:40,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-02 17:25:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 17:25:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 17:25:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 17:25:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 17:25:40,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-02 17:25:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:25:40,436 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 17:25:40,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:25:40,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 17:25:40,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 17:25:40,438 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 17:25:40,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:25:40 BasicIcfg [2018-12-02 17:25:40,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:25:40,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:25:40,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:25:40,440 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:25:40,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:39" (3/4) ... [2018-12-02 17:25:40,442 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 17:25:40,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-02 17:25:40,447 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-02 17:25:40,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-12-02 17:25:40,450 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 17:25:40,450 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 17:25:40,478 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5b5a1d84-1091-4a76-96b9-bc4d350a6237/bin-2019/utaipan/witness.graphml [2018-12-02 17:25:40,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:25:40,478 INFO L168 Benchmark]: Toolchain (without parser) took 1937.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.6 MB in the beginning and 810.4 MB in the end (delta: 140.3 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. [2018-12-02 17:25:40,479 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:25:40,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:25:40,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:25:40,480 INFO L168 Benchmark]: Boogie Preprocessor took 14.81 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-02 17:25:40,480 INFO L168 Benchmark]: RCFGBuilder took 184.10 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-02 17:25:40,481 INFO L168 Benchmark]: TraceAbstraction took 1383.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.4 MB in the end (delta: 272.0 MB). Peak memory consumption was 272.0 MB. Max. memory is 11.5 GB. [2018-12-02 17:25:40,481 INFO L168 Benchmark]: Witness Printer took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 810.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:25:40,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.59 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 14.81 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.10 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1383.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.4 MB in the end (delta: 272.0 MB). Peak memory consumption was 272.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.50 ms. Allocated memory is still 1.2 GB. Free memory is still 810.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 360 SDtfs, 483 SDslu, 1261 SDs, 0 SdLazy, 219 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...