./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_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_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/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 fa745c110666687028049da73d5464e646a40f9e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:00:24,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:00:24,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:00:24,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:00:24,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:00:24,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:00:24,506 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:00:24,507 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:00:24,509 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:00:24,509 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:00:24,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:00:24,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:00:24,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:00:24,511 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:00:24,512 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:00:24,512 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:00:24,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:00:24,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:00:24,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:00:24,517 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:00:24,518 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:00:24,519 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:00:24,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:00:24,521 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:00:24,521 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:00:24,522 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:00:24,522 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:00:24,523 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:00:24,524 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:00:24,524 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:00:24,525 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:00:24,525 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:00:24,525 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:00:24,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:00:24,526 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:00:24,527 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:00:24,527 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 08:00:24,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:00:24,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:00:24,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 08:00:24,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 08:00:24,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 08:00:24,539 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 08:00:24,539 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 08:00:24,539 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 08:00:24,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 08:00:24,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 08:00:24,541 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 08:00:24,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:00:24,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 08:00:24,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:00:24,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:00:24,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:00:24,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 08:00:24,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 08:00:24,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 08:00:24,543 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 08:00:24,543 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_902fffcb-c52e-4220-b48e-0ac13f4ef78d/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 -> fa745c110666687028049da73d5464e646a40f9e [2018-12-09 08:00:24,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:00:24,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:00:24,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:00:24,576 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:00:24,576 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:00:24,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_true-unreach-call.i [2018-12-09 08:00:24,612 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/data/2676f632a/7a7bc337070a48d9bcb6bbb687aa4537/FLAGb16633998 [2018-12-09 08:00:25,085 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:00:25,085 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/sv-benchmarks/c/pthread-wmm/safe000_pso.oepc_true-unreach-call.i [2018-12-09 08:00:25,092 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/data/2676f632a/7a7bc337070a48d9bcb6bbb687aa4537/FLAGb16633998 [2018-12-09 08:00:25,099 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/data/2676f632a/7a7bc337070a48d9bcb6bbb687aa4537 [2018-12-09 08:00:25,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:00:25,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:00:25,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:00:25,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:00:25,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:00:25,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3629c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25, skipping insertion in model container [2018-12-09 08:00:25,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:00:25,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:00:25,287 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:00:25,295 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:00:25,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:00:25,387 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:00:25,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25 WrapperNode [2018-12-09 08:00:25,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:00:25,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:00:25,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:00:25,388 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:00:25,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:00:25,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:00:25,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:00:25,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:00:25,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... [2018-12-09 08:00:25,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:00:25,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:00:25,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:00:25,431 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:00:25,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/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 [2018-12-09 08:00:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 08:00:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 08:00:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-09 08:00:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 08:00:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-09 08:00:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-09 08:00:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-09 08:00:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-09 08:00:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-09 08:00:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-09 08:00:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-09 08:00:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:00:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:00:25,471 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 08:00:25,645 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:00:25,645 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 08:00:25,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:25 BoogieIcfgContainer [2018-12-09 08:00:25,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:00:25,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 08:00:25,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 08:00:25,648 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 08:00:25,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:00:25" (1/3) ... [2018-12-09 08:00:25,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222f4637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:00:25, skipping insertion in model container [2018-12-09 08:00:25,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:25" (2/3) ... [2018-12-09 08:00:25,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222f4637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:00:25, skipping insertion in model container [2018-12-09 08:00:25,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:25" (3/3) ... [2018-12-09 08:00:25,650 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc_true-unreach-call.i [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,670 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,671 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,672 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,673 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,674 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,674 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,674 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,674 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 08:00:25,682 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 08:00:25,682 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 08:00:25,688 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 08:00:25,702 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 08:00:25,718 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 08:00:25,718 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 08:00:25,719 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 08:00:25,719 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:00:25,719 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:00:25,719 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 08:00:25,719 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:00:25,719 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 08:00:25,726 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-12-09 08:00:25,790 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-12-09 08:00:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-12-09 08:00:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 08:00:25,800 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:25,801 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] [2018-12-09 08:00:25,802 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:25,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:25,806 INFO L82 PathProgramCache]: Analyzing trace with hash 137484955, now seen corresponding path program 1 times [2018-12-09 08:00:25,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:25,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:25,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:00:25,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:25,846 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:25,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:25,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 08:00:25,954 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:25,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 08:00:25,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 08:00:25,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 08:00:25,967 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-12-09 08:00:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,018 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-12-09 08:00:26,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 08:00:26,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-12-09 08:00:26,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,033 INFO L225 Difference]: With dead ends: 2493 [2018-12-09 08:00:26,033 INFO L226 Difference]: Without dead ends: 1128 [2018-12-09 08:00:26,034 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 [2018-12-09 08:00:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-12-09 08:00:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-12-09 08:00:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-12-09 08:00:26,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-12-09 08:00:26,089 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-12-09 08:00:26,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,089 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-12-09 08:00:26,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 08:00:26,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-12-09 08:00:26,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 08:00:26,091 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:26,091 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] [2018-12-09 08:00:26,092 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:26,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:26,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2018730703, now seen corresponding path program 1 times [2018-12-09 08:00:26,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:26,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:00:26,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:26,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:26,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:26,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 08:00:26,151 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:26,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 08:00:26,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 08:00:26,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 08:00:26,153 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-12-09 08:00:26,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,192 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-12-09 08:00:26,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 08:00:26,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-12-09 08:00:26,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,196 INFO L225 Difference]: With dead ends: 1168 [2018-12-09 08:00:26,196 INFO L226 Difference]: Without dead ends: 1044 [2018-12-09 08:00:26,197 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 [2018-12-09 08:00:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-12-09 08:00:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-12-09 08:00:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-12-09 08:00:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-12-09 08:00:26,216 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-12-09 08:00:26,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,216 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-12-09 08:00:26,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 08:00:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-12-09 08:00:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 08:00:26,218 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:26,218 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] [2018-12-09 08:00:26,218 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:26,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:26,218 INFO L82 PathProgramCache]: Analyzing trace with hash 691214767, now seen corresponding path program 1 times [2018-12-09 08:00:26,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:26,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:00:26,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,221 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:26,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:26,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 08:00:26,277 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:26,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 08:00:26,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 08:00:26,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 08:00:26,278 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-12-09 08:00:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,324 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-12-09 08:00:26,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:00:26,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-12-09 08:00:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,327 INFO L225 Difference]: With dead ends: 820 [2018-12-09 08:00:26,327 INFO L226 Difference]: Without dead ends: 708 [2018-12-09 08:00:26,327 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 [2018-12-09 08:00:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-12-09 08:00:26,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-12-09 08:00:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-12-09 08:00:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-12-09 08:00:26,339 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-12-09 08:00:26,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,339 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-12-09 08:00:26,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 08:00:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-12-09 08:00:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 08:00:26,340 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:26,341 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, 1] [2018-12-09 08:00:26,341 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:26,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:26,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1939982521, now seen corresponding path program 1 times [2018-12-09 08:00:26,341 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:26,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:00:26,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,343 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:26,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:26,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 08:00:26,397 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:26,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 08:00:26,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 08:00:26,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 08:00:26,397 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-12-09 08:00:26,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,466 INFO L93 Difference]: Finished difference Result 1188 states and 3491 transitions. [2018-12-09 08:00:26,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:00:26,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-09 08:00:26,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,469 INFO L225 Difference]: With dead ends: 1188 [2018-12-09 08:00:26,469 INFO L226 Difference]: Without dead ends: 672 [2018-12-09 08:00:26,469 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 [2018-12-09 08:00:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2018-12-09 08:00:26,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2018-12-09 08:00:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-12-09 08:00:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1975 transitions. [2018-12-09 08:00:26,480 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1975 transitions. Word has length 33 [2018-12-09 08:00:26,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,480 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1975 transitions. [2018-12-09 08:00:26,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 08:00:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1975 transitions. [2018-12-09 08:00:26,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 08:00:26,481 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:26,481 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, 1] [2018-12-09 08:00:26,482 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:26,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1074111855, now seen corresponding path program 2 times [2018-12-09 08:00:26,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:26,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:00:26,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,484 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:26,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:26,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 08:00:26,539 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:26,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 08:00:26,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 08:00:26,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 08:00:26,540 INFO L87 Difference]: Start difference. First operand 672 states and 1975 transitions. Second operand 7 states. [2018-12-09 08:00:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,610 INFO L93 Difference]: Finished difference Result 1056 states and 3159 transitions. [2018-12-09 08:00:26,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:00:26,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-09 08:00:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,614 INFO L225 Difference]: With dead ends: 1056 [2018-12-09 08:00:26,614 INFO L226 Difference]: Without dead ends: 556 [2018-12-09 08:00:26,614 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 [2018-12-09 08:00:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-12-09 08:00:26,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-12-09 08:00:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-09 08:00:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-12-09 08:00:26,629 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-12-09 08:00:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,629 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-12-09 08:00:26,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 08:00:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-12-09 08:00:26,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 08:00:26,630 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:00:26,631 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, 1] [2018-12-09 08:00:26,631 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 08:00:26,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:00:26,631 INFO L82 PathProgramCache]: Analyzing trace with hash -824939639, now seen corresponding path program 3 times [2018-12-09 08:00:26,631 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:00:26,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,633 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 08:00:26,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:00:26,634 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:00:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:00:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:00:26,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:00:26,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 08:00:26,699 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:00:26,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 08:00:26,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 08:00:26,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 08:00:26,700 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-12-09 08:00:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:00:26,742 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-12-09 08:00:26,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 08:00:26,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-09 08:00:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:00:26,743 INFO L225 Difference]: With dead ends: 428 [2018-12-09 08:00:26,743 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 08:00:26,743 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 [2018-12-09 08:00:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 08:00:26,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 08:00:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 08:00:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 08:00:26,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-09 08:00:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:00:26,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:00:26,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 08:00:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:00:26,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 08:00:26,746 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 08:00:26,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:00:26 BasicIcfg [2018-12-09 08:00:26,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 08:00:26,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:00:26,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:00:26,748 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:00:26,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:25" (3/4) ... [2018-12-09 08:00:26,750 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 08:00:26,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-09 08:00:26,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-09 08:00:26,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-12-09 08:00:26,759 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 08:00:26,759 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 08:00:26,789 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_902fffcb-c52e-4220-b48e-0ac13f4ef78d/bin-2019/utaipan/witness.graphml [2018-12-09 08:00:26,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:00:26,789 INFO L168 Benchmark]: Toolchain (without parser) took 1687.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 954.9 MB in the beginning and 843.1 MB in the end (delta: 111.8 MB). Peak memory consumption was 245.0 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,791 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-09 08:00:26,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.75 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. [2018-12-09 08:00:26,792 INFO L168 Benchmark]: Boogie Preprocessor took 15.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,792 INFO L168 Benchmark]: RCFGBuilder took 214.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,793 INFO L168 Benchmark]: TraceAbstraction took 1101.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.0 MB in the end (delta: 231.2 MB). Peak memory consumption was 231.2 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,793 INFO L168 Benchmark]: Witness Printer took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 850.0 MB in the beginning and 843.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:00:26,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 285.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.75 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 15.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 214.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1101.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.0 MB in the end (delta: 231.2 MB). Peak memory consumption was 231.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 850.0 MB in the beginning and 843.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 316 SDtfs, 422 SDslu, 827 SDs, 0 SdLazy, 115 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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, 0.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15934 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...