./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_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_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/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 8bd9ca18245af8e5328828c1ee802038d2a3464c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:30:19,621 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:30:19,622 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:30:19,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:30:19,629 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:30:19,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:30:19,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:30:19,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:30:19,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:30:19,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:30:19,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:30:19,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:30:19,633 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:30:19,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:30:19,634 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:30:19,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:30:19,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:30:19,636 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:30:19,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:30:19,637 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:30:19,638 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:30:19,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:30:19,640 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:30:19,640 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:30:19,640 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:30:19,640 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:30:19,641 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:30:19,641 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:30:19,641 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:30:19,642 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:30:19,642 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:30:19,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:30:19,643 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:30:19,643 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:30:19,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:30:19,644 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:30:19,644 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 17:30:19,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:30:19,651 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:30:19,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:30:19,652 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:30:19,652 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:30:19,653 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:30:19,653 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 17:30:19,654 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:30:19,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:30:19,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 17:30:19,655 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:30:19,655 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:30:19,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:30:19,655 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 17:30:19,655 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_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/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 -> 8bd9ca18245af8e5328828c1ee802038d2a3464c [2018-12-02 17:30:19,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:30:19,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:30:19,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:30:19,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:30:19,682 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:30:19,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-12-02 17:30:19,717 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/data/95ad6dbf4/8cda6600715748ea9d71b60dc4bd597c/FLAG9d4390992 [2018-12-02 17:30:20,195 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:30:20,195 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/sv-benchmarks/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-12-02 17:30:20,202 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/data/95ad6dbf4/8cda6600715748ea9d71b60dc4bd597c/FLAG9d4390992 [2018-12-02 17:30:20,211 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/data/95ad6dbf4/8cda6600715748ea9d71b60dc4bd597c [2018-12-02 17:30:20,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:30:20,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:30:20,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:30:20,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:30:20,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:30:20,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115e7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20, skipping insertion in model container [2018-12-02 17:30:20,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:30:20,241 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:30:20,401 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:30:20,408 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:30:20,474 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:30:20,504 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:30:20,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20 WrapperNode [2018-12-02 17:30:20,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:30:20,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:30:20,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:30:20,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:30:20,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:30:20,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:30:20,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:30:20,532 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:30:20,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... [2018-12-02 17:30:20,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:30:20,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:30:20,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:30:20,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:30:20,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/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 17:30:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 17:30:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 17:30:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-02 17:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-02 17:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-02 17:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-02 17:30:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:30:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:30:20,581 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 17:30:20,719 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:30:20,719 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 17:30:20,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:20 BoogieIcfgContainer [2018-12-02 17:30:20,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:30:20,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:30:20,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:30:20,723 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:30:20,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:30:20" (1/3) ... [2018-12-02 17:30:20,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf20e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:30:20, skipping insertion in model container [2018-12-02 17:30:20,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:30:20" (2/3) ... [2018-12-02 17:30:20,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf20e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:30:20, skipping insertion in model container [2018-12-02 17:30:20,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:20" (3/3) ... [2018-12-02 17:30:20,725 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt_true-unreach-call.i [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,747 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,748 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,750 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,750 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,750 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,750 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 17:30:20,756 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 17:30:20,756 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:30:20,761 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 17:30:20,769 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 17:30:20,783 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:30:20,784 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 17:30:20,784 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:30:20,784 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:30:20,784 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:30:20,784 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:30:20,784 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:30:20,784 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:30:20,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-12-02 17:30:20,839 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-12-02 17:30:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-12-02 17:30:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-02 17:30:20,850 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:20,850 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 17:30:20,852 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:20,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:20,855 INFO L82 PathProgramCache]: Analyzing trace with hash 100325607, now seen corresponding path program 1 times [2018-12-02 17:30:20,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:20,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:20,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:20,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:20,891 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:20,989 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 17:30:20,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:20,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 17:30:20,991 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:20,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:30:21,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:30:21,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:30:21,004 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-12-02 17:30:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:21,072 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-12-02 17:30:21,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 17:30:21,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-02 17:30:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:21,092 INFO L225 Difference]: With dead ends: 2492 [2018-12-02 17:30:21,092 INFO L226 Difference]: Without dead ends: 1127 [2018-12-02 17:30:21,093 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 17:30:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-12-02 17:30:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-12-02 17:30:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-12-02 17:30:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-12-02 17:30:21,166 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-12-02 17:30:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:21,167 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-12-02 17:30:21,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:30:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-12-02 17:30:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 17:30:21,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:21,170 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 17:30:21,170 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:21,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:21,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1012637439, now seen corresponding path program 1 times [2018-12-02 17:30:21,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:21,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:21,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:21,247 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 17:30:21,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:21,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:30:21,248 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:21,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:30:21,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:30:21,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:30:21,250 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-12-02 17:30:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:21,314 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-12-02 17:30:21,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:30:21,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-02 17:30:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:21,320 INFO L225 Difference]: With dead ends: 1167 [2018-12-02 17:30:21,320 INFO L226 Difference]: Without dead ends: 1043 [2018-12-02 17:30:21,321 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 17:30:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-12-02 17:30:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-12-02 17:30:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-12-02 17:30:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-12-02 17:30:21,351 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-12-02 17:30:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:21,351 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-12-02 17:30:21,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:30:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-12-02 17:30:21,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 17:30:21,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:21,353 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 17:30:21,354 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:21,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:21,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1278569811, now seen corresponding path program 1 times [2018-12-02 17:30:21,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:21,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:21,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,358 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:21,415 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 17:30:21,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:21,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 17:30:21,415 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:21,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 17:30:21,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 17:30:21,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 17:30:21,416 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-12-02 17:30:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:21,483 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-12-02 17:30:21,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:30:21,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-02 17:30:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:21,486 INFO L225 Difference]: With dead ends: 819 [2018-12-02 17:30:21,487 INFO L226 Difference]: Without dead ends: 707 [2018-12-02 17:30:21,487 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 17:30:21,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-12-02 17:30:21,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-12-02 17:30:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-12-02 17:30:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-12-02 17:30:21,505 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-12-02 17:30:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:21,505 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-12-02 17:30:21,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 17:30:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-12-02 17:30:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:30:21,507 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:21,507 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 17:30:21,507 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:21,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash 731663071, now seen corresponding path program 1 times [2018-12-02 17:30:21,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:21,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:21,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,510 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:21,585 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 17:30:21,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:21,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 17:30:21,586 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:21,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:30:21,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:30:21,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:30:21,586 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 7 states. [2018-12-02 17:30:21,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:21,661 INFO L93 Difference]: Finished difference Result 1187 states and 3490 transitions. [2018-12-02 17:30:21,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:30:21,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-12-02 17:30:21,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:21,665 INFO L225 Difference]: With dead ends: 1187 [2018-12-02 17:30:21,665 INFO L226 Difference]: Without dead ends: 671 [2018-12-02 17:30:21,665 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 17:30:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-12-02 17:30:21,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2018-12-02 17:30:21,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-12-02 17:30:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1974 transitions. [2018-12-02 17:30:21,683 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1974 transitions. Word has length 32 [2018-12-02 17:30:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:21,683 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1974 transitions. [2018-12-02 17:30:21,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:30:21,684 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1974 transitions. [2018-12-02 17:30:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:30:21,685 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:21,685 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 17:30:21,685 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:21,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:21,686 INFO L82 PathProgramCache]: Analyzing trace with hash -360491193, now seen corresponding path program 2 times [2018-12-02 17:30:21,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:21,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:30:21,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:21,767 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 17:30:21,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:21,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 17:30:21,767 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:21,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 17:30:21,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 17:30:21,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:30:21,768 INFO L87 Difference]: Start difference. First operand 671 states and 1974 transitions. Second operand 8 states. [2018-12-02 17:30:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:21,877 INFO L93 Difference]: Finished difference Result 1055 states and 3158 transitions. [2018-12-02 17:30:21,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:30:21,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-12-02 17:30:21,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:21,879 INFO L225 Difference]: With dead ends: 1055 [2018-12-02 17:30:21,879 INFO L226 Difference]: Without dead ends: 555 [2018-12-02 17:30:21,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-12-02 17:30:21,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-12-02 17:30:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-12-02 17:30:21,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-12-02 17:30:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-12-02 17:30:21,886 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-12-02 17:30:21,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:21,886 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-12-02 17:30:21,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 17:30:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-12-02 17:30:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-02 17:30:21,887 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:30:21,887 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 17:30:21,887 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:30:21,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:30:21,887 INFO L82 PathProgramCache]: Analyzing trace with hash -40855097, now seen corresponding path program 3 times [2018-12-02 17:30:21,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:30:21,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,888 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 17:30:21,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:30:21,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:30:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:30:21,930 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 17:30:21,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:30:21,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 17:30:21,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:30:21,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:30:21,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:30:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:30:21,931 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2018-12-02 17:30:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:30:22,038 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-12-02 17:30:22,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:30:22,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-12-02 17:30:22,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:30:22,039 INFO L225 Difference]: With dead ends: 427 [2018-12-02 17:30:22,039 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 17:30:22,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-12-02 17:30:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 17:30:22,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 17:30:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 17:30:22,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 17:30:22,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-02 17:30:22,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:30:22,040 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 17:30:22,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:30:22,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 17:30:22,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 17:30:22,042 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 17:30:22,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:30:22 BasicIcfg [2018-12-02 17:30:22,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:30:22,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:30:22,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:30:22,043 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:30:22,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:30:20" (3/4) ... [2018-12-02 17:30:22,046 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 17:30:22,051 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-02 17:30:22,051 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-02 17:30:22,051 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-12-02 17:30:22,054 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 17:30:22,054 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 17:30:22,082 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd60b2f5-f4c2-4f98-8677-e27c7310f1eb/bin-2019/utaipan/witness.graphml [2018-12-02 17:30:22,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:30:22,083 INFO L168 Benchmark]: Toolchain (without parser) took 1869.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 952.4 MB in the beginning and 857.9 MB in the end (delta: 94.5 MB). Peak memory consumption was 264.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,084 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:30:22,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.52 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,084 INFO L168 Benchmark]: Boogie Preprocessor took 14.42 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 17:30:22,085 INFO L168 Benchmark]: RCFGBuilder took 173.80 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,085 INFO L168 Benchmark]: TraceAbstraction took 1322.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.2 MB in the end (delta: 259.4 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,085 INFO L168 Benchmark]: Witness Printer took 39.03 ms. Allocated memory is still 1.2 GB. Free memory was 861.2 MB in the beginning and 857.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:30:22,088 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.52 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 173.80 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1322.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.2 MB in the end (delta: 259.4 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. * Witness Printer took 39.03 ms. Allocated memory is still 1.2 GB. Free memory was 861.2 MB in the beginning and 857.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 327 SDtfs, 458 SDslu, 890 SDs, 0 SdLazy, 112 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 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, 14603 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...