./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_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_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/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 69001bbd31af67c0515525916b00925e356b0415 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:12:58,571 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:12:58,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:12:58,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:12:58,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:12:58,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:12:58,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:12:58,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:12:58,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:12:58,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:12:58,586 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:12:58,586 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:12:58,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:12:58,588 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:12:58,589 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:12:58,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:12:58,590 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:12:58,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:12:58,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:12:58,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:12:58,594 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:12:58,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:12:58,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:12:58,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:12:58,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:12:58,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:12:58,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:12:58,599 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:12:58,600 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:12:58,601 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:12:58,601 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:12:58,601 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:12:58,601 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:12:58,602 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:12:58,602 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:12:58,603 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:12:58,603 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 22:12:58,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:12:58,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:12:58,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:12:58,614 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:12:58,614 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 22:12:58,614 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 22:12:58,614 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 22:12:58,614 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 22:12:58,614 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 22:12:58,615 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 22:12:58,615 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 22:12:58,615 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 22:12:58,615 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 22:12:58,615 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:12:58,616 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:12:58,617 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:12:58,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:12:58,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:12:58,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:12:58,618 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 22:12:58,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:12:58,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:12:58,618 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 22:12:58,618 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_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/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 -> 69001bbd31af67c0515525916b00925e356b0415 [2018-12-08 22:12:58,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:12:58,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:12:58,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:12:58,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:12:58,651 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:12:58,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i [2018-12-08 22:12:58,688 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/data/5602f6716/29741e4357f54ede9e7287e9586118ac/FLAG52d028e0d [2018-12-08 22:12:59,101 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:12:59,101 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/sv-benchmarks/c/pthread-wmm/safe017_tso.opt_true-unreach-call.i [2018-12-08 22:12:59,107 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/data/5602f6716/29741e4357f54ede9e7287e9586118ac/FLAG52d028e0d [2018-12-08 22:12:59,114 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/data/5602f6716/29741e4357f54ede9e7287e9586118ac [2018-12-08 22:12:59,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:12:59,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:12:59,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:59,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:12:59,119 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:12:59,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,121 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 08.12 10:12:59, skipping insertion in model container [2018-12-08 22:12:59,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:12:59,143 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:12:59,303 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:59,310 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:12:59,370 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:59,401 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:12:59,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59 WrapperNode [2018-12-08 22:12:59,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:59,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:59,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:12:59,402 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:12:59,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:59,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:12:59,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:12:59,428 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:12:59,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... [2018-12-08 22:12:59,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:12:59,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:12:59,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:12:59,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:12:59,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/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 [2018-12-08 22:12:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:12:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-08 22:12:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-08 22:12:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-08 22:12:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-08 22:12:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-08 22:12:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:12:59,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:12:59,482 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 22:12:59,648 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:12:59,648 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 22:12:59,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:59 BoogieIcfgContainer [2018-12-08 22:12:59,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:12:59,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:12:59,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:12:59,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:12:59,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:12:59" (1/3) ... [2018-12-08 22:12:59,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@952d881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:59, skipping insertion in model container [2018-12-08 22:12:59,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:59" (2/3) ... [2018-12-08 22:12:59,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@952d881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:59, skipping insertion in model container [2018-12-08 22:12:59,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:59" (3/3) ... [2018-12-08 22:12:59,653 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt_true-unreach-call.i [2018-12-08 22:12:59,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,674 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,674 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,674 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,675 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,676 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,677 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:59,683 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 22:12:59,684 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:12:59,689 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 22:12:59,698 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 22:12:59,713 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:12:59,713 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:12:59,713 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:12:59,713 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:12:59,713 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:12:59,714 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:12:59,714 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:12:59,714 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:12:59,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 51 transitions [2018-12-08 22:12:59,779 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2018-12-08 22:12:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2018-12-08 22:12:59,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 22:12:59,789 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:59,790 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] [2018-12-08 22:12:59,791 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:59,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:59,795 INFO L82 PathProgramCache]: Analyzing trace with hash -96387719, now seen corresponding path program 1 times [2018-12-08 22:12:59,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:59,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:59,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:59,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:59,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:59,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:12:59,958 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:59,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:12:59,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:12:59,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:12:59,971 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2018-12-08 22:13:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,026 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2018-12-08 22:13:00,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:13:00,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-12-08 22:13:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,041 INFO L225 Difference]: With dead ends: 2491 [2018-12-08 22:13:00,041 INFO L226 Difference]: Without dead ends: 1126 [2018-12-08 22:13:00,042 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 [2018-12-08 22:13:00,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2018-12-08 22:13:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2018-12-08 22:13:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2018-12-08 22:13:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2018-12-08 22:13:00,097 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2018-12-08 22:13:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,098 INFO L480 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2018-12-08 22:13:00,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:13:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2018-12-08 22:13:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 22:13:00,100 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:00,100 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] [2018-12-08 22:13:00,100 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:00,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:00,101 INFO L82 PathProgramCache]: Analyzing trace with hash -180410605, now seen corresponding path program 1 times [2018-12-08 22:13:00,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:00,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:00,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,104 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:00,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:00,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:13:00,156 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:13:00,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:13:00,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:13:00,158 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2018-12-08 22:13:00,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,196 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2018-12-08 22:13:00,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 22:13:00,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-12-08 22:13:00,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,200 INFO L225 Difference]: With dead ends: 1166 [2018-12-08 22:13:00,200 INFO L226 Difference]: Without dead ends: 1042 [2018-12-08 22:13:00,200 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 [2018-12-08 22:13:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2018-12-08 22:13:00,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2018-12-08 22:13:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2018-12-08 22:13:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2018-12-08 22:13:00,221 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2018-12-08 22:13:00,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,221 INFO L480 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2018-12-08 22:13:00,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:13:00,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2018-12-08 22:13:00,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 22:13:00,222 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:00,223 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] [2018-12-08 22:13:00,223 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:00,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1508223209, now seen corresponding path program 1 times [2018-12-08 22:13:00,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:00,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:00,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,226 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:00,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:00,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 22:13:00,266 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 22:13:00,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 22:13:00,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 22:13:00,267 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2018-12-08 22:13:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,308 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2018-12-08 22:13:00,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 22:13:00,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-12-08 22:13:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,311 INFO L225 Difference]: With dead ends: 818 [2018-12-08 22:13:00,311 INFO L226 Difference]: Without dead ends: 706 [2018-12-08 22:13:00,311 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 [2018-12-08 22:13:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2018-12-08 22:13:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2018-12-08 22:13:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2018-12-08 22:13:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2018-12-08 22:13:00,323 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2018-12-08 22:13:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,323 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2018-12-08 22:13:00,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 22:13:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2018-12-08 22:13:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 22:13:00,325 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:00,325 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] [2018-12-08 22:13:00,325 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:00,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:00,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1020559073, now seen corresponding path program 1 times [2018-12-08 22:13:00,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:00,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:00,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:00,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:00,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 22:13:00,385 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 22:13:00,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 22:13:00,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:13:00,386 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 7 states. [2018-12-08 22:13:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,532 INFO L93 Difference]: Finished difference Result 1954 states and 5857 transitions. [2018-12-08 22:13:00,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 22:13:00,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-12-08 22:13:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,534 INFO L225 Difference]: With dead ends: 1954 [2018-12-08 22:13:00,534 INFO L226 Difference]: Without dead ends: 670 [2018-12-08 22:13:00,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-12-08 22:13:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-12-08 22:13:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2018-12-08 22:13:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-12-08 22:13:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1957 transitions. [2018-12-08 22:13:00,546 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1957 transitions. Word has length 31 [2018-12-08 22:13:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,546 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 1957 transitions. [2018-12-08 22:13:00,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 22:13:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1957 transitions. [2018-12-08 22:13:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 22:13:00,547 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:00,547 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] [2018-12-08 22:13:00,547 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:00,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:00,548 INFO L82 PathProgramCache]: Analyzing trace with hash 862008853, now seen corresponding path program 2 times [2018-12-08 22:13:00,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:00,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:13:00,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:00,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:00,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 22:13:00,610 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 22:13:00,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 22:13:00,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:13:00,611 INFO L87 Difference]: Start difference. First operand 670 states and 1957 transitions. Second operand 7 states. [2018-12-08 22:13:00,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,717 INFO L93 Difference]: Finished difference Result 1054 states and 3141 transitions. [2018-12-08 22:13:00,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 22:13:00,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-12-08 22:13:00,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,719 INFO L225 Difference]: With dead ends: 1054 [2018-12-08 22:13:00,719 INFO L226 Difference]: Without dead ends: 554 [2018-12-08 22:13:00,719 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 [2018-12-08 22:13:00,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-12-08 22:13:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2018-12-08 22:13:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-08 22:13:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1669 transitions. [2018-12-08 22:13:00,727 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1669 transitions. Word has length 31 [2018-12-08 22:13:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,727 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 1669 transitions. [2018-12-08 22:13:00,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 22:13:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1669 transitions. [2018-12-08 22:13:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 22:13:00,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:13:00,728 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] [2018-12-08 22:13:00,728 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:13:00,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:13:00,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1509348813, now seen corresponding path program 3 times [2018-12-08 22:13:00,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:13:00,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,730 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 22:13:00,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:13:00,730 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:13:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:13:00,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:13:00,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:13:00,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-08 22:13:00,856 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:13:00,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 22:13:00,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 22:13:00,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-12-08 22:13:00,856 INFO L87 Difference]: Start difference. First operand 554 states and 1669 transitions. Second operand 11 states. [2018-12-08 22:13:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:13:00,937 INFO L93 Difference]: Finished difference Result 426 states and 1253 transitions. [2018-12-08 22:13:00,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 22:13:00,937 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-12-08 22:13:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:13:00,938 INFO L225 Difference]: With dead ends: 426 [2018-12-08 22:13:00,938 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 22:13:00,938 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 [2018-12-08 22:13:00,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 22:13:00,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 22:13:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 22:13:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 22:13:00,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-08 22:13:00,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:13:00,939 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 22:13:00,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 22:13:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 22:13:00,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 22:13:00,941 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 22:13:00,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:13:00 BasicIcfg [2018-12-08 22:13:00,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 22:13:00,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 22:13:00,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 22:13:00,943 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 22:13:00,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:59" (3/4) ... [2018-12-08 22:13:00,945 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 22:13:00,949 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-08 22:13:00,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-08 22:13:00,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-12-08 22:13:00,952 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-08 22:13:00,952 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 22:13:00,976 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dfdd01d3-79a9-4884-8c20-2725f28c7ab9/bin-2019/utaipan/witness.graphml [2018-12-08 22:13:00,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 22:13:00,976 INFO L168 Benchmark]: Toolchain (without parser) took 1860.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 956.0 MB in the beginning and 802.8 MB in the end (delta: 153.2 MB). Peak memory consumption was 284.2 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:00,977 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:00,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:00,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.91 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. [2018-12-08 22:13:00,978 INFO L168 Benchmark]: Boogie Preprocessor took 13.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:00,978 INFO L168 Benchmark]: RCFGBuilder took 206.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:00,979 INFO L168 Benchmark]: TraceAbstraction took 1293.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.8 MB in the end (delta: 279.4 MB). Peak memory consumption was 279.4 MB. Max. memory is 11.5 GB. [2018-12-08 22:13:00,979 INFO L168 Benchmark]: Witness Printer took 33.45 ms. Allocated memory is still 1.2 GB. Free memory is still 802.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:13:00,980 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.91 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 13.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1293.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 802.8 MB in the end (delta: 279.4 MB). Peak memory consumption was 279.4 MB. Max. memory is 11.5 GB. * Witness Printer took 33.45 ms. Allocated memory is still 1.2 GB. Free memory is still 802.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 512 SDslu, 1170 SDs, 0 SdLazy, 150 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 15396 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...