./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_tso.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_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/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 2059cdb9d50c5563f9c2024cc6a14d3d80f1421a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:09:12,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:09:12,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:09:12,531 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:09:12,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:09:12,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:09:12,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:09:12,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:09:12,534 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:09:12,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:09:12,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:09:12,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:09:12,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:09:12,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:09:12,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:09:12,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:09:12,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:09:12,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:09:12,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:09:12,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:09:12,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:09:12,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:09:12,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:09:12,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:09:12,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:09:12,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:09:12,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:09:12,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:09:12,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:09:12,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:09:12,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:09:12,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:09:12,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:09:12,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:09:12,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:09:12,546 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:09:12,546 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 15:09:12,553 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:09:12,553 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:09:12,554 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:09:12,554 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:09:12,554 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 15:09:12,554 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 15:09:12,554 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 15:09:12,554 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 15:09:12,555 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:09:12,555 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:09:12,556 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:09:12,556 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:09:12,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:09:12,557 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 15:09:12,557 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_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/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 -> 2059cdb9d50c5563f9c2024cc6a14d3d80f1421a [2018-12-02 15:09:12,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:09:12,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:09:12,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:09:12,584 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:09:12,585 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:09:12,585 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe015_tso.opt_true-unreach-call.i [2018-12-02 15:09:12,620 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/data/cb6e1a88e/4a6bbd8d2acb402da756dc6673a114ef/FLAG2eedfc38c [2018-12-02 15:09:13,094 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:09:13,094 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/sv-benchmarks/c/pthread-wmm/safe015_tso.opt_true-unreach-call.i [2018-12-02 15:09:13,101 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/data/cb6e1a88e/4a6bbd8d2acb402da756dc6673a114ef/FLAG2eedfc38c [2018-12-02 15:09:13,109 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/data/cb6e1a88e/4a6bbd8d2acb402da756dc6673a114ef [2018-12-02 15:09:13,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:09:13,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:09:13,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:09:13,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:09:13,115 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:09:13,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,117 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 03:09:13, skipping insertion in model container [2018-12-02 15:09:13,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:09:13,141 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:09:13,300 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:09:13,307 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:09:13,376 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:09:13,407 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:09:13,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13 WrapperNode [2018-12-02 15:09:13,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:09:13,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:09:13,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:09:13,409 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:09:13,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:09:13,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:09:13,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:09:13,435 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:09:13,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... [2018-12-02 15:09:13,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:09:13,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:09:13,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:09:13,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:09:13,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/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 15:09:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-02 15:09:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-02 15:09:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-02 15:09:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-02 15:09:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-02 15:09:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-02 15:09:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:09:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:09:13,494 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 15:09:13,689 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:09:13,689 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 15:09:13,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:09:13 BoogieIcfgContainer [2018-12-02 15:09:13,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:09:13,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:09:13,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:09:13,692 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:09:13,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:09:13" (1/3) ... [2018-12-02 15:09:13,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6d18c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:09:13, skipping insertion in model container [2018-12-02 15:09:13,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:13" (2/3) ... [2018-12-02 15:09:13,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6d18c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:09:13, skipping insertion in model container [2018-12-02 15:09:13,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:09:13" (3/3) ... [2018-12-02 15:09:13,694 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt_true-unreach-call.i [2018-12-02 15:09:13,713 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,714 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,715 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,716 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:09:13,721 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 15:09:13,721 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:09:13,726 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:09:13,735 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:09:13,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:09:13,749 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:09:13,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:09:13,749 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:09:13,749 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:09:13,749 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:09:13,749 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:09:13,749 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:09:13,754 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-12-02 15:09:13,814 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-12-02 15:09:13,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-12-02 15:09:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 15:09:13,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:13,827 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 15:09:13,829 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:13,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:13,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1952890995, now seen corresponding path program 1 times [2018-12-02 15:09:13,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:13,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:13,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:09:13,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:13,872 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:13,994 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 15:09:13,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:13,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 15:09:13,996 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:13,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 15:09:14,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 15:09:14,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 15:09:14,009 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-12-02 15:09:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:14,078 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-12-02 15:09:14,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 15:09:14,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-02 15:09:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:14,097 INFO L225 Difference]: With dead ends: 2492 [2018-12-02 15:09:14,097 INFO L226 Difference]: Without dead ends: 1127 [2018-12-02 15:09:14,098 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 15:09:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-12-02 15:09:14,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-12-02 15:09:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-12-02 15:09:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-12-02 15:09:14,159 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-12-02 15:09:14,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:14,159 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-12-02 15:09:14,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 15:09:14,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-12-02 15:09:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 15:09:14,161 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:14,161 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 15:09:14,161 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:14,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:14,161 INFO L82 PathProgramCache]: Analyzing trace with hash 237831011, now seen corresponding path program 1 times [2018-12-02 15:09:14,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:14,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:09:14,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,169 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:14,228 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 15:09:14,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:14,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 15:09:14,228 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:14,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 15:09:14,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 15:09:14,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:09:14,230 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-12-02 15:09:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:14,265 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-12-02 15:09:14,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 15:09:14,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-02 15:09:14,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:14,269 INFO L225 Difference]: With dead ends: 1167 [2018-12-02 15:09:14,269 INFO L226 Difference]: Without dead ends: 1043 [2018-12-02 15:09:14,269 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 15:09:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-12-02 15:09:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-12-02 15:09:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-12-02 15:09:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-12-02 15:09:14,289 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-12-02 15:09:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:14,290 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-12-02 15:09:14,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 15:09:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-12-02 15:09:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 15:09:14,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:14,291 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 15:09:14,291 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:14,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:14,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1963848659, now seen corresponding path program 1 times [2018-12-02 15:09:14,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:14,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:09:14,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,295 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:14,336 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 15:09:14,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:14,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 15:09:14,337 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:14,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:09:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:09:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:09:14,337 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-12-02 15:09:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:14,382 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-12-02 15:09:14,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:09:14,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-02 15:09:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:14,384 INFO L225 Difference]: With dead ends: 819 [2018-12-02 15:09:14,384 INFO L226 Difference]: Without dead ends: 707 [2018-12-02 15:09:14,385 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 15:09:14,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-12-02 15:09:14,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-12-02 15:09:14,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-12-02 15:09:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-12-02 15:09:14,397 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-12-02 15:09:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:14,397 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-12-02 15:09:14,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:09:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-12-02 15:09:14,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 15:09:14,398 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:14,398 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 15:09:14,398 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:14,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:14,399 INFO L82 PathProgramCache]: Analyzing trace with hash 994118133, now seen corresponding path program 1 times [2018-12-02 15:09:14,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:14,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:09:14,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,401 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:14,505 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 15:09:14,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:14,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 15:09:14,506 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:14,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 15:09:14,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 15:09:14,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:09:14,507 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 10 states. [2018-12-02 15:09:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:14,672 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2018-12-02 15:09:14,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 15:09:14,672 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-12-02 15:09:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:14,674 INFO L225 Difference]: With dead ends: 1107 [2018-12-02 15:09:14,674 INFO L226 Difference]: Without dead ends: 591 [2018-12-02 15:09:14,674 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 15:09:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-12-02 15:09:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2018-12-02 15:09:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-12-02 15:09:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2018-12-02 15:09:14,684 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2018-12-02 15:09:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:14,684 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2018-12-02 15:09:14,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 15:09:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2018-12-02 15:09:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 15:09:14,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:14,686 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 15:09:14,686 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:14,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:14,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1831555919, now seen corresponding path program 2 times [2018-12-02 15:09:14,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:14,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:09:14,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,689 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:14,750 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 15:09:14,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:14,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 15:09:14,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:14,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 15:09:14,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 15:09:14,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:09:14,752 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2018-12-02 15:09:14,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:14,800 INFO L93 Difference]: Finished difference Result 975 states and 2938 transitions. [2018-12-02 15:09:14,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:09:14,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-12-02 15:09:14,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:14,803 INFO L225 Difference]: With dead ends: 975 [2018-12-02 15:09:14,803 INFO L226 Difference]: Without dead ends: 555 [2018-12-02 15:09:14,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:09:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-12-02 15:09:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-12-02 15:09:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-12-02 15:09:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-12-02 15:09:14,811 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-12-02 15:09:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:14,812 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-12-02 15:09:14,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 15:09:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-12-02 15:09:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 15:09:14,813 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:09:14,813 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 15:09:14,813 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:09:14,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:09:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 2073035831, now seen corresponding path program 3 times [2018-12-02 15:09:14,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:09:14,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,815 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 15:09:14,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:09:14,815 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:09:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:09:14,915 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 15:09:14,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:09:14,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 15:09:14,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:09:14,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 15:09:14,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 15:09:14,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-12-02 15:09:14,917 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 11 states. [2018-12-02 15:09:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:09:15,009 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-12-02 15:09:15,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 15:09:15,009 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2018-12-02 15:09:15,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:09:15,010 INFO L225 Difference]: With dead ends: 427 [2018-12-02 15:09:15,010 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 15:09:15,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-12-02 15:09:15,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 15:09:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 15:09:15,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 15:09:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 15:09:15,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-02 15:09:15,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:09:15,011 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 15:09:15,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 15:09:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 15:09:15,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:09:15,013 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 15:09:15,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:09:15 BasicIcfg [2018-12-02 15:09:15,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:09:15,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:09:15,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:09:15,014 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:09:15,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:09:13" (3/4) ... [2018-12-02 15:09:15,017 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:09:15,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-02 15:09:15,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-02 15:09:15,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-12-02 15:09:15,025 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 15:09:15,025 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 15:09:15,053 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a5806df3-563d-4d40-a9b7-7dd02c46b4f0/bin-2019/utaipan/witness.graphml [2018-12-02 15:09:15,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:09:15,054 INFO L168 Benchmark]: Toolchain (without parser) took 1942.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 952.4 MB in the beginning and 829.0 MB in the end (delta: 123.4 MB). Peak memory consumption was 277.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,055 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:09:15,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.82 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 15:09:15,056 INFO L168 Benchmark]: Boogie Preprocessor took 14.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,056 INFO L168 Benchmark]: RCFGBuilder took 239.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,056 INFO L168 Benchmark]: TraceAbstraction took 1323.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.9 MB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,057 INFO L168 Benchmark]: Witness Printer took 39.26 ms. Allocated memory is still 1.2 GB. Free memory was 835.9 MB in the beginning and 829.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 15:09:15,059 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.82 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 14.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 239.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1323.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.9 MB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.26 ms. Allocated memory is still 1.2 GB. Free memory was 835.9 MB in the beginning and 829.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. 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, 1.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 367 SDtfs, 458 SDslu, 1387 SDs, 0 SdLazy, 246 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 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, 0.3s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 19346 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...