./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/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 cdd404ca31686c70dbc8bc4ecac8e0500aa3a958 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:55:50,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:55:50,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:55:50,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:55:50,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:55:50,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:55:50,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:55:50,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:55:50,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:55:50,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:55:50,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:55:50,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:55:50,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:55:50,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:55:50,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:55:50,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:55:50,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:55:50,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:55:50,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:55:50,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:55:50,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:55:50,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:55:50,554 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:55:50,554 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:55:50,555 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:55:50,555 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:55:50,556 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:55:50,557 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:55:50,557 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:55:50,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:55:50,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:55:50,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:55:50,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:55:50,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:55:50,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:55:50,560 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:55:50,560 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:55:50,571 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:55:50,571 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:55:50,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:55:50,571 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:55:50,572 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:55:50,572 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:55:50,572 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:55:50,572 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:55:50,572 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:55:50,572 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:55:50,573 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:55:50,573 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:55:50,573 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:55:50,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:55:50,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:55:50,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:55:50,575 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:55:50,575 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:55:50,575 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:55:50,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:55:50,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:55:50,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:55:50,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:55:50,576 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:55:50,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:55:50,577 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:55:50,577 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:55:50,577 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_91f58051-5478-423c-879c-ec21f2995c4b/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 -> cdd404ca31686c70dbc8bc4ecac8e0500aa3a958 [2018-11-22 21:55:50,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:55:50,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:55:50,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:55:50,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:55:50,610 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:55:50,611 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i [2018-11-22 21:55:50,649 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/data/01f28df05/00d5c762f697425db8e6083a715fffff/FLAG586a34e9f [2018-11-22 21:55:51,103 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:55:51,103 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/sv-benchmarks/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i [2018-11-22 21:55:51,110 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/data/01f28df05/00d5c762f697425db8e6083a715fffff/FLAG586a34e9f [2018-11-22 21:55:51,122 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/data/01f28df05/00d5c762f697425db8e6083a715fffff [2018-11-22 21:55:51,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:55:51,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:55:51,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:55:51,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:55:51,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:55:51,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa062a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51, skipping insertion in model container [2018-11-22 21:55:51,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:55:51,169 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:55:51,369 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:55:51,376 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:55:51,455 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:55:51,498 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:55:51,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51 WrapperNode [2018-11-22 21:55:51,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:55:51,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:55:51,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:55:51,499 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:55:51,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:55:51,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:55:51,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:55:51,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:55:51,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... [2018-11-22 21:55:51,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:55:51,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:55:51,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:55:51,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:55:51,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/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 [2018-11-22 21:55:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:55:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-22 21:55:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-22 21:55:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-22 21:55:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-22 21:55:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:55:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:55:51,589 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-22 21:55:51,856 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:55:51,856 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-22 21:55:51,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:51 BoogieIcfgContainer [2018-11-22 21:55:51,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:55:51,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:55:51,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:55:51,860 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:55:51,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:55:51" (1/3) ... [2018-11-22 21:55:51,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270cb48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:55:51, skipping insertion in model container [2018-11-22 21:55:51,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:55:51" (2/3) ... [2018-11-22 21:55:51,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270cb48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:55:51, skipping insertion in model container [2018-11-22 21:55:51,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:51" (3/3) ... [2018-11-22 21:55:51,863 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc_true-unreach-call.i [2018-11-22 21:55:51,887 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,887 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,887 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,888 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,889 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,890 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,891 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,892 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:55:51,904 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-22 21:55:51,904 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:55:51,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:55:51,922 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:55:51,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:55:51,938 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:55:51,939 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:55:51,939 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:55:51,939 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:55:51,939 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:55:51,939 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:55:51,939 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:55:51,947 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-22 21:55:52,026 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-22 21:55:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-22 21:55:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-22 21:55:52,043 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:52,043 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] [2018-11-22 21:55:52,045 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:52,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:52,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1523724345, now seen corresponding path program 1 times [2018-11-22 21:55:52,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:52,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:52,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:52,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:52,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:52,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:55:52,276 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:52,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:55:52,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:55:52,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:55:52,290 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-22 21:55:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:52,391 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-22 21:55:52,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 21:55:52,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-22 21:55:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:52,413 INFO L225 Difference]: With dead ends: 2492 [2018-11-22 21:55:52,413 INFO L226 Difference]: Without dead ends: 1127 [2018-11-22 21:55:52,414 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 [2018-11-22 21:55:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-22 21:55:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-22 21:55:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-22 21:55:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-22 21:55:52,488 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-22 21:55:52,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:52,488 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-22 21:55:52,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:55:52,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-22 21:55:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 21:55:52,491 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:52,491 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] [2018-11-22 21:55:52,491 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:52,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1285499803, now seen corresponding path program 1 times [2018-11-22 21:55:52,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:52,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:52,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,496 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:52,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:52,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 21:55:52,592 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:52,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:55:52,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:55:52,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:55:52,594 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-22 21:55:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:52,646 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-22 21:55:52,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:55:52,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-22 21:55:52,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:52,651 INFO L225 Difference]: With dead ends: 1167 [2018-11-22 21:55:52,651 INFO L226 Difference]: Without dead ends: 1043 [2018-11-22 21:55:52,651 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 [2018-11-22 21:55:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-22 21:55:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-22 21:55:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-22 21:55:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-22 21:55:52,673 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-22 21:55:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:52,673 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-22 21:55:52,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:55:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-22 21:55:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 21:55:52,675 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:52,675 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] [2018-11-22 21:55:52,676 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:52,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:52,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2083344731, now seen corresponding path program 1 times [2018-11-22 21:55:52,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:52,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:52,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:52,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:52,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:55:52,753 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:52,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:55:52,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:55:52,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:55:52,754 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-22 21:55:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:52,815 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-22 21:55:52,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:55:52,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-22 21:55:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:52,817 INFO L225 Difference]: With dead ends: 819 [2018-11-22 21:55:52,818 INFO L226 Difference]: Without dead ends: 707 [2018-11-22 21:55:52,818 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 [2018-11-22 21:55:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-22 21:55:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-22 21:55:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-22 21:55:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-22 21:55:52,831 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-22 21:55:52,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:52,832 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-22 21:55:52,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:55:52,832 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-22 21:55:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 21:55:52,833 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:52,833 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] [2018-11-22 21:55:52,833 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:52,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:52,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1634169057, now seen corresponding path program 1 times [2018-11-22 21:55:52,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:52,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:52,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:52,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:52,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:55:52,909 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:52,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:55:52,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:55:52,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:55:52,911 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2018-11-22 21:55:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:52,964 INFO L93 Difference]: Finished difference Result 1171 states and 3450 transitions. [2018-11-22 21:55:52,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:55:52,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-22 21:55:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:52,967 INFO L225 Difference]: With dead ends: 1171 [2018-11-22 21:55:52,967 INFO L226 Difference]: Without dead ends: 655 [2018-11-22 21:55:52,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 21:55:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2018-11-22 21:55:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2018-11-22 21:55:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-11-22 21:55:52,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1930 transitions. [2018-11-22 21:55:52,981 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1930 transitions. Word has length 32 [2018-11-22 21:55:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:52,981 INFO L480 AbstractCegarLoop]: Abstraction has 655 states and 1930 transitions. [2018-11-22 21:55:52,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:55:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1930 transitions. [2018-11-22 21:55:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 21:55:52,982 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:52,983 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] [2018-11-22 21:55:52,983 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:52,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash 931380865, now seen corresponding path program 2 times [2018-11-22 21:55:52,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:52,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:55:52,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:52,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:53,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:53,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-22 21:55:53,112 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:53,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:55:53,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:55:53,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:55:53,113 INFO L87 Difference]: Start difference. First operand 655 states and 1930 transitions. Second operand 10 states. [2018-11-22 21:55:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:53,223 INFO L93 Difference]: Finished difference Result 1039 states and 3114 transitions. [2018-11-22 21:55:53,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 21:55:53,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-22 21:55:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:53,226 INFO L225 Difference]: With dead ends: 1039 [2018-11-22 21:55:53,226 INFO L226 Difference]: Without dead ends: 575 [2018-11-22 21:55:53,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-22 21:55:53,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2018-11-22 21:55:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2018-11-22 21:55:53,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2018-11-22 21:55:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1710 transitions. [2018-11-22 21:55:53,264 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1710 transitions. Word has length 32 [2018-11-22 21:55:53,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:53,264 INFO L480 AbstractCegarLoop]: Abstraction has 575 states and 1710 transitions. [2018-11-22 21:55:53,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:55:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1710 transitions. [2018-11-22 21:55:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 21:55:53,265 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:55:53,265 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] [2018-11-22 21:55:53,266 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:55:53,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:55:53,266 INFO L82 PathProgramCache]: Analyzing trace with hash 483930945, now seen corresponding path program 3 times [2018-11-22 21:55:53,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:55:53,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:53,268 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:55:53,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:55:53,268 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:55:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:55:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:55:53,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:55:53,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 21:55:53,349 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:55:53,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 21:55:53,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 21:55:53,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:55:53,350 INFO L87 Difference]: Start difference. First operand 575 states and 1710 transitions. Second operand 7 states. [2018-11-22 21:55:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:55:53,448 INFO L93 Difference]: Finished difference Result 447 states and 1294 transitions. [2018-11-22 21:55:53,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:55:53,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-22 21:55:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:55:53,449 INFO L225 Difference]: With dead ends: 447 [2018-11-22 21:55:53,449 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:55:53,449 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 [2018-11-22 21:55:53,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:55:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:55:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:55:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:55:53,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-22 21:55:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:55:53,450 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:55:53,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 21:55:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:55:53,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:55:53,453 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-22 21:55:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:55:53 BasicIcfg [2018-11-22 21:55:53,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:55:53,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:55:53,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:55:53,455 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:55:53,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:55:51" (3/4) ... [2018-11-22 21:55:53,458 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:55:53,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-22 21:55:53,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-22 21:55:53,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-22 21:55:53,467 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-22 21:55:53,467 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:55:53,500 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91f58051-5478-423c-879c-ec21f2995c4b/bin-2019/utaipan/witness.graphml [2018-11-22 21:55:53,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:55:53,501 INFO L168 Benchmark]: Toolchain (without parser) took 2376.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,501 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:55:53,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.82 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,502 INFO L168 Benchmark]: Boogie Preprocessor took 18.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,503 INFO L168 Benchmark]: RCFGBuilder took 310.44 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,503 INFO L168 Benchmark]: TraceAbstraction took 1597.07 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,503 INFO L168 Benchmark]: Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:55:53,505 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.82 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 310.44 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1597.07 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: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * Witness Printer took 45.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 396 SDslu, 1100 SDs, 0 SdLazy, 159 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 15316 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...