./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_false-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_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/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 c319566bf131c36d8589e8b38663c5e9805f0d75 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:53:55,305 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:53:55,306 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:53:55,313 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:53:55,313 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:53:55,314 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:53:55,315 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:53:55,316 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:53:55,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:53:55,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:53:55,318 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:53:55,319 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:53:55,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:53:55,320 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:53:55,321 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:53:55,321 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:53:55,322 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:53:55,323 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:53:55,324 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:53:55,326 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:53:55,326 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:53:55,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:53:55,328 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:53:55,329 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:53:55,329 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:53:55,329 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:53:55,330 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:53:55,330 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:53:55,331 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:53:55,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:53:55,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:53:55,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:53:55,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:53:55,332 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:53:55,332 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:53:55,333 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:53:55,333 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 17:53:55,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:53:55,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:53:55,340 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:53:55,340 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:53:55,340 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 17:53:55,340 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 17:53:55,341 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:53:55,341 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:53:55,342 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:53:55,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:53:55,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:53:55,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:53:55,344 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 17:53:55,344 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_483a00d8-dbe6-4882-a643-68ee362ee5f5/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 -> c319566bf131c36d8589e8b38663c5e9805f0d75 [2018-12-08 17:53:55,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:53:55,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:53:55,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:53:55,380 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:53:55,380 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:53:55,380 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe010_power.oepc_false-unreach-call.i [2018-12-08 17:53:55,423 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/data/a7b9cab9f/ff408bd2dbb64122a73520cf8ef22329/FLAG494fd2921 [2018-12-08 17:53:55,801 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:53:55,801 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/sv-benchmarks/c/pthread-wmm/safe010_power.oepc_false-unreach-call.i [2018-12-08 17:53:55,808 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/data/a7b9cab9f/ff408bd2dbb64122a73520cf8ef22329/FLAG494fd2921 [2018-12-08 17:53:56,157 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/data/a7b9cab9f/ff408bd2dbb64122a73520cf8ef22329 [2018-12-08 17:53:56,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:53:56,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:53:56,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:53:56,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:53:56,164 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:53:56,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e31f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56, skipping insertion in model container [2018-12-08 17:53:56,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:53:56,210 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:53:56,397 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:53:56,405 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:53:56,497 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:53:56,531 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:53:56,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56 WrapperNode [2018-12-08 17:53:56,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:53:56,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:53:56,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:53:56,533 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:53:56,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:53:56,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:53:56,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:53:56,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:53:56,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... [2018-12-08 17:53:56,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:53:56,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:53:56,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:53:56,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:53:56,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-08 17:53:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-08 17:53:56,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-08 17:53:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:53:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:53:56,623 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 17:53:56,941 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:53:56,941 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 17:53:56,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:53:56 BoogieIcfgContainer [2018-12-08 17:53:56,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:53:56,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:53:56,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:53:56,944 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:53:56,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:53:56" (1/3) ... [2018-12-08 17:53:56,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abba981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:53:56, skipping insertion in model container [2018-12-08 17:53:56,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:53:56" (2/3) ... [2018-12-08 17:53:56,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abba981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:53:56, skipping insertion in model container [2018-12-08 17:53:56,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:53:56" (3/3) ... [2018-12-08 17:53:56,947 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_power.oepc_false-unreach-call.i [2018-12-08 17:53:56,968 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,971 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,972 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,973 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,974 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,974 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,974 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,978 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:53:56,982 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 17:53:56,982 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:53:56,988 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 17:53:56,998 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 17:53:57,013 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:53:57,014 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:53:57,014 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:53:57,014 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:53:57,014 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:53:57,014 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:53:57,014 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:53:57,014 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:53:57,021 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141places, 179 transitions [2018-12-08 17:53:57,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25103 states. [2018-12-08 17:53:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states. [2018-12-08 17:53:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 17:53:57,986 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:53:57,986 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] [2018-12-08 17:53:57,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:53:57,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:53:57,991 INFO L82 PathProgramCache]: Analyzing trace with hash -969782754, now seen corresponding path program 1 times [2018-12-08 17:53:57,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:53:58,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:53:58,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:53:58,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:53:58,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:53:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:53:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:53:58,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:53:58,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:53:58,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:53:58,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:53:58,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:53:58,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:53:58,147 INFO L87 Difference]: Start difference. First operand 25103 states. Second operand 4 states. [2018-12-08 17:53:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:53:58,507 INFO L93 Difference]: Finished difference Result 45395 states and 177649 transitions. [2018-12-08 17:53:58,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 17:53:58,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-12-08 17:53:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:53:58,658 INFO L225 Difference]: With dead ends: 45395 [2018-12-08 17:53:58,658 INFO L226 Difference]: Without dead ends: 40635 [2018-12-08 17:53:58,659 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:53:58,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40635 states. [2018-12-08 17:53:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40635 to 23669. [2018-12-08 17:53:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23669 states. [2018-12-08 17:53:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23669 states to 23669 states and 92566 transitions. [2018-12-08 17:53:59,351 INFO L78 Accepts]: Start accepts. Automaton has 23669 states and 92566 transitions. Word has length 32 [2018-12-08 17:53:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:53:59,351 INFO L480 AbstractCegarLoop]: Abstraction has 23669 states and 92566 transitions. [2018-12-08 17:53:59,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:53:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 23669 states and 92566 transitions. [2018-12-08 17:53:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-08 17:53:59,356 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:53:59,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:53:59,357 INFO L423 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:53:59,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:53:59,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1661840205, now seen corresponding path program 1 times [2018-12-08 17:53:59,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:53:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:53:59,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:53:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:53:59,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:53:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:53:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:53:59,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:53:59,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:53:59,421 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:53:59,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:53:59,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:53:59,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:53:59,422 INFO L87 Difference]: Start difference. First operand 23669 states and 92566 transitions. Second operand 5 states. [2018-12-08 17:54:00,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:00,047 INFO L93 Difference]: Finished difference Result 64837 states and 241396 transitions. [2018-12-08 17:54:00,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:54:00,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-12-08 17:54:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:00,173 INFO L225 Difference]: With dead ends: 64837 [2018-12-08 17:54:00,173 INFO L226 Difference]: Without dead ends: 64677 [2018-12-08 17:54:00,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:54:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64677 states. [2018-12-08 17:54:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64677 to 37149. [2018-12-08 17:54:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37149 states. [2018-12-08 17:54:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37149 states to 37149 states and 138311 transitions. [2018-12-08 17:54:00,940 INFO L78 Accepts]: Start accepts. Automaton has 37149 states and 138311 transitions. Word has length 43 [2018-12-08 17:54:00,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:00,941 INFO L480 AbstractCegarLoop]: Abstraction has 37149 states and 138311 transitions. [2018-12-08 17:54:00,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:54:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 37149 states and 138311 transitions. [2018-12-08 17:54:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-08 17:54:00,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:00,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:00,943 INFO L423 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:00,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:00,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1508943518, now seen corresponding path program 1 times [2018-12-08 17:54:00,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:00,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:00,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:00,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:00,946 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:00,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:00,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:54:00,989 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:00,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:54:00,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:54:00,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:00,989 INFO L87 Difference]: Start difference. First operand 37149 states and 138311 transitions. Second operand 4 states. [2018-12-08 17:54:01,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:01,046 INFO L93 Difference]: Finished difference Result 12371 states and 41204 transitions. [2018-12-08 17:54:01,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 17:54:01,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-12-08 17:54:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:01,061 INFO L225 Difference]: With dead ends: 12371 [2018-12-08 17:54:01,061 INFO L226 Difference]: Without dead ends: 11850 [2018-12-08 17:54:01,061 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11850 states. [2018-12-08 17:54:01,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11850 to 11850. [2018-12-08 17:54:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11850 states. [2018-12-08 17:54:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 39649 transitions. [2018-12-08 17:54:01,189 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 39649 transitions. Word has length 44 [2018-12-08 17:54:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:01,189 INFO L480 AbstractCegarLoop]: Abstraction has 11850 states and 39649 transitions. [2018-12-08 17:54:01,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:54:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 39649 transitions. [2018-12-08 17:54:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-08 17:54:01,192 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:01,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:01,193 INFO L423 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:01,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:01,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1699267050, now seen corresponding path program 1 times [2018-12-08 17:54:01,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:01,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:01,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:01,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:01,195 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:01,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:01,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:54:01,261 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:01,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:54:01,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:54:01,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:01,262 INFO L87 Difference]: Start difference. First operand 11850 states and 39649 transitions. Second operand 4 states. [2018-12-08 17:54:01,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:01,430 INFO L93 Difference]: Finished difference Result 17026 states and 55724 transitions. [2018-12-08 17:54:01,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 17:54:01,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-12-08 17:54:01,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:01,450 INFO L225 Difference]: With dead ends: 17026 [2018-12-08 17:54:01,450 INFO L226 Difference]: Without dead ends: 17026 [2018-12-08 17:54:01,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17026 states. [2018-12-08 17:54:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17026 to 12886. [2018-12-08 17:54:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12886 states. [2018-12-08 17:54:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12886 states to 12886 states and 42751 transitions. [2018-12-08 17:54:01,643 INFO L78 Accepts]: Start accepts. Automaton has 12886 states and 42751 transitions. Word has length 57 [2018-12-08 17:54:01,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:01,643 INFO L480 AbstractCegarLoop]: Abstraction has 12886 states and 42751 transitions. [2018-12-08 17:54:01,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:54:01,643 INFO L276 IsEmpty]: Start isEmpty. Operand 12886 states and 42751 transitions. [2018-12-08 17:54:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-08 17:54:01,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:01,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:01,647 INFO L423 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:01,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:01,648 INFO L82 PathProgramCache]: Analyzing trace with hash -852889911, now seen corresponding path program 1 times [2018-12-08 17:54:01,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:01,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:01,649 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:01,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:01,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:54:01,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:01,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:54:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:54:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:01,693 INFO L87 Difference]: Start difference. First operand 12886 states and 42751 transitions. Second operand 4 states. [2018-12-08 17:54:02,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:02,105 INFO L93 Difference]: Finished difference Result 18381 states and 60008 transitions. [2018-12-08 17:54:02,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 17:54:02,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-12-08 17:54:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:02,125 INFO L225 Difference]: With dead ends: 18381 [2018-12-08 17:54:02,125 INFO L226 Difference]: Without dead ends: 18381 [2018-12-08 17:54:02,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:02,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18381 states. [2018-12-08 17:54:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18381 to 16342. [2018-12-08 17:54:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16342 states. [2018-12-08 17:54:02,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16342 states to 16342 states and 53833 transitions. [2018-12-08 17:54:02,307 INFO L78 Accepts]: Start accepts. Automaton has 16342 states and 53833 transitions. Word has length 57 [2018-12-08 17:54:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:02,307 INFO L480 AbstractCegarLoop]: Abstraction has 16342 states and 53833 transitions. [2018-12-08 17:54:02,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:54:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand 16342 states and 53833 transitions. [2018-12-08 17:54:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-08 17:54:02,311 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:02,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:02,311 INFO L423 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:02,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:02,312 INFO L82 PathProgramCache]: Analyzing trace with hash 500419786, now seen corresponding path program 1 times [2018-12-08 17:54:02,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:02,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:02,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:02,314 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:02,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:02,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:54:02,402 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:02,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:54:02,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:54:02,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:54:02,402 INFO L87 Difference]: Start difference. First operand 16342 states and 53833 transitions. Second operand 6 states. [2018-12-08 17:54:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:02,757 INFO L93 Difference]: Finished difference Result 24888 states and 80174 transitions. [2018-12-08 17:54:02,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:54:02,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-08 17:54:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:02,789 INFO L225 Difference]: With dead ends: 24888 [2018-12-08 17:54:02,789 INFO L226 Difference]: Without dead ends: 24888 [2018-12-08 17:54:02,789 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:54:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2018-12-08 17:54:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 16252. [2018-12-08 17:54:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16252 states. [2018-12-08 17:54:03,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 52196 transitions. [2018-12-08 17:54:03,003 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 52196 transitions. Word has length 57 [2018-12-08 17:54:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,004 INFO L480 AbstractCegarLoop]: Abstraction has 16252 states and 52196 transitions. [2018-12-08 17:54:03,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:54:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 52196 transitions. [2018-12-08 17:54:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-08 17:54:03,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,006 INFO L423 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,007 INFO L82 PathProgramCache]: Analyzing trace with hash 207016779, now seen corresponding path program 1 times [2018-12-08 17:54:03,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:03,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:03,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:54:03,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:03,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:54:03,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:54:03,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:03,059 INFO L87 Difference]: Start difference. First operand 16252 states and 52196 transitions. Second operand 5 states. [2018-12-08 17:54:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:03,081 INFO L93 Difference]: Finished difference Result 2696 states and 7013 transitions. [2018-12-08 17:54:03,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 17:54:03,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-12-08 17:54:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:03,084 INFO L225 Difference]: With dead ends: 2696 [2018-12-08 17:54:03,084 INFO L226 Difference]: Without dead ends: 2224 [2018-12-08 17:54:03,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:54:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2018-12-08 17:54:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2150. [2018-12-08 17:54:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2018-12-08 17:54:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 5587 transitions. [2018-12-08 17:54:03,098 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 5587 transitions. Word has length 57 [2018-12-08 17:54:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,099 INFO L480 AbstractCegarLoop]: Abstraction has 2150 states and 5587 transitions. [2018-12-08 17:54:03,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:54:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 5587 transitions. [2018-12-08 17:54:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:03,100 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,100 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,101 INFO L423 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2072438205, now seen corresponding path program 1 times [2018-12-08 17:54:03,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,102 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:03,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:03,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:03,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:54:03,134 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:03,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:54:03,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:54:03,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:03,135 INFO L87 Difference]: Start difference. First operand 2150 states and 5587 transitions. Second operand 4 states. [2018-12-08 17:54:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:03,247 INFO L93 Difference]: Finished difference Result 3137 states and 7854 transitions. [2018-12-08 17:54:03,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 17:54:03,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-12-08 17:54:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:03,250 INFO L225 Difference]: With dead ends: 3137 [2018-12-08 17:54:03,250 INFO L226 Difference]: Without dead ends: 3137 [2018-12-08 17:54:03,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2018-12-08 17:54:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 2234. [2018-12-08 17:54:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2234 states. [2018-12-08 17:54:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 5761 transitions. [2018-12-08 17:54:03,318 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 5761 transitions. Word has length 92 [2018-12-08 17:54:03,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,319 INFO L480 AbstractCegarLoop]: Abstraction has 2234 states and 5761 transitions. [2018-12-08 17:54:03,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:54:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 5761 transitions. [2018-12-08 17:54:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:03,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,320 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,321 INFO L423 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,321 INFO L82 PathProgramCache]: Analyzing trace with hash 889090908, now seen corresponding path program 1 times [2018-12-08 17:54:03,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,322 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:03,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:03,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:54:03,396 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:03,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:54:03,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:54:03,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:54:03,397 INFO L87 Difference]: Start difference. First operand 2234 states and 5761 transitions. Second operand 6 states. [2018-12-08 17:54:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:03,536 INFO L93 Difference]: Finished difference Result 2513 states and 6342 transitions. [2018-12-08 17:54:03,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 17:54:03,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-08 17:54:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:03,539 INFO L225 Difference]: With dead ends: 2513 [2018-12-08 17:54:03,539 INFO L226 Difference]: Without dead ends: 2513 [2018-12-08 17:54:03,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-12-08 17:54:03,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2018-12-08 17:54:03,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2048. [2018-12-08 17:54:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2018-12-08 17:54:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 5299 transitions. [2018-12-08 17:54:03,556 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 5299 transitions. Word has length 92 [2018-12-08 17:54:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,556 INFO L480 AbstractCegarLoop]: Abstraction has 2048 states and 5299 transitions. [2018-12-08 17:54:03,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:54:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 5299 transitions. [2018-12-08 17:54:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:03,558 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,558 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,558 INFO L423 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1759073572, now seen corresponding path program 1 times [2018-12-08 17:54:03,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,560 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:03,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:03,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:54:03,647 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:03,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:54:03,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:54:03,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:54:03,648 INFO L87 Difference]: Start difference. First operand 2048 states and 5299 transitions. Second operand 6 states. [2018-12-08 17:54:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:03,756 INFO L93 Difference]: Finished difference Result 2241 states and 5642 transitions. [2018-12-08 17:54:03,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 17:54:03,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-08 17:54:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:03,758 INFO L225 Difference]: With dead ends: 2241 [2018-12-08 17:54:03,758 INFO L226 Difference]: Without dead ends: 2241 [2018-12-08 17:54:03,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-08 17:54:03,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2018-12-08 17:54:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2072. [2018-12-08 17:54:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2018-12-08 17:54:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 5304 transitions. [2018-12-08 17:54:03,773 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 5304 transitions. Word has length 92 [2018-12-08 17:54:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,773 INFO L480 AbstractCegarLoop]: Abstraction has 2072 states and 5304 transitions. [2018-12-08 17:54:03,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:54:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 5304 transitions. [2018-12-08 17:54:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:03,775 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,775 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,775 INFO L423 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1511199803, now seen corresponding path program 1 times [2018-12-08 17:54:03,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:03,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:03,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:03,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:54:03,821 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:03,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:54:03,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:54:03,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:03,822 INFO L87 Difference]: Start difference. First operand 2072 states and 5304 transitions. Second operand 5 states. [2018-12-08 17:54:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:03,947 INFO L93 Difference]: Finished difference Result 2853 states and 7060 transitions. [2018-12-08 17:54:03,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:54:03,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-12-08 17:54:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:03,950 INFO L225 Difference]: With dead ends: 2853 [2018-12-08 17:54:03,950 INFO L226 Difference]: Without dead ends: 2853 [2018-12-08 17:54:03,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:54:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2018-12-08 17:54:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2244. [2018-12-08 17:54:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-12-08 17:54:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 5654 transitions. [2018-12-08 17:54:03,975 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 5654 transitions. Word has length 92 [2018-12-08 17:54:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:03,975 INFO L480 AbstractCegarLoop]: Abstraction has 2244 states and 5654 transitions. [2018-12-08 17:54:03,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:54:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 5654 transitions. [2018-12-08 17:54:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:03,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:03,977 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:03,977 INFO L423 AbstractCegarLoop]: === Iteration 12 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:03,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1438573394, now seen corresponding path program 2 times [2018-12-08 17:54:03,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:03,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:03,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:03,979 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:04,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:04,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:04,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:54:04,033 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:04,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:54:04,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:54:04,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:04,034 INFO L87 Difference]: Start difference. First operand 2244 states and 5654 transitions. Second operand 4 states. [2018-12-08 17:54:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:04,105 INFO L93 Difference]: Finished difference Result 2580 states and 6574 transitions. [2018-12-08 17:54:04,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 17:54:04,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-12-08 17:54:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:04,107 INFO L225 Difference]: With dead ends: 2580 [2018-12-08 17:54:04,108 INFO L226 Difference]: Without dead ends: 2580 [2018-12-08 17:54:04,108 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:54:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-12-08 17:54:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2548. [2018-12-08 17:54:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2018-12-08 17:54:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 6494 transitions. [2018-12-08 17:54:04,124 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 6494 transitions. Word has length 92 [2018-12-08 17:54:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:04,124 INFO L480 AbstractCegarLoop]: Abstraction has 2548 states and 6494 transitions. [2018-12-08 17:54:04,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:54:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 6494 transitions. [2018-12-08 17:54:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:04,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:04,126 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:04,126 INFO L423 AbstractCegarLoop]: === Iteration 13 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:04,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:04,126 INFO L82 PathProgramCache]: Analyzing trace with hash -638635949, now seen corresponding path program 1 times [2018-12-08 17:54:04,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:04,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:54:04,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,127 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:04,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:04,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:54:04,210 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:04,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:54:04,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:54:04,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:54:04,210 INFO L87 Difference]: Start difference. First operand 2548 states and 6494 transitions. Second operand 8 states. [2018-12-08 17:54:04,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:04,485 INFO L93 Difference]: Finished difference Result 3957 states and 10028 transitions. [2018-12-08 17:54:04,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 17:54:04,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2018-12-08 17:54:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:04,488 INFO L225 Difference]: With dead ends: 3957 [2018-12-08 17:54:04,488 INFO L226 Difference]: Without dead ends: 3925 [2018-12-08 17:54:04,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-12-08 17:54:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2018-12-08 17:54:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3392. [2018-12-08 17:54:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3392 states. [2018-12-08 17:54:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 8645 transitions. [2018-12-08 17:54:04,514 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 8645 transitions. Word has length 92 [2018-12-08 17:54:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:04,514 INFO L480 AbstractCegarLoop]: Abstraction has 3392 states and 8645 transitions. [2018-12-08 17:54:04,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:54:04,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 8645 transitions. [2018-12-08 17:54:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:04,516 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:04,516 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:04,517 INFO L423 AbstractCegarLoop]: === Iteration 14 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:04,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:04,517 INFO L82 PathProgramCache]: Analyzing trace with hash 322978068, now seen corresponding path program 1 times [2018-12-08 17:54:04,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:04,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:04,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,518 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:04,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:04,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 17:54:04,577 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:04,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 17:54:04,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 17:54:04,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:54:04,578 INFO L87 Difference]: Start difference. First operand 3392 states and 8645 transitions. Second operand 7 states. [2018-12-08 17:54:04,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:04,767 INFO L93 Difference]: Finished difference Result 4456 states and 11306 transitions. [2018-12-08 17:54:04,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:54:04,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2018-12-08 17:54:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:04,770 INFO L225 Difference]: With dead ends: 4456 [2018-12-08 17:54:04,770 INFO L226 Difference]: Without dead ends: 4456 [2018-12-08 17:54:04,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-12-08 17:54:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2018-12-08 17:54:04,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 3856. [2018-12-08 17:54:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2018-12-08 17:54:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 9887 transitions. [2018-12-08 17:54:04,798 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 9887 transitions. Word has length 92 [2018-12-08 17:54:04,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:04,798 INFO L480 AbstractCegarLoop]: Abstraction has 3856 states and 9887 transitions. [2018-12-08 17:54:04,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 17:54:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 9887 transitions. [2018-12-08 17:54:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:04,801 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:04,801 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:04,801 INFO L423 AbstractCegarLoop]: === Iteration 15 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:04,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:04,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1567742549, now seen corresponding path program 1 times [2018-12-08 17:54:04,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:04,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:04,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:04,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:04,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:54:04,866 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:04,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:54:04,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:54:04,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:04,867 INFO L87 Difference]: Start difference. First operand 3856 states and 9887 transitions. Second operand 5 states. [2018-12-08 17:54:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:04,896 INFO L93 Difference]: Finished difference Result 5688 states and 14819 transitions. [2018-12-08 17:54:04,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 17:54:04,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-12-08 17:54:04,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:04,901 INFO L225 Difference]: With dead ends: 5688 [2018-12-08 17:54:04,901 INFO L226 Difference]: Without dead ends: 5688 [2018-12-08 17:54:04,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:54:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5688 states. [2018-12-08 17:54:04,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5688 to 3422. [2018-12-08 17:54:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3422 states. [2018-12-08 17:54:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8725 transitions. [2018-12-08 17:54:04,936 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8725 transitions. Word has length 92 [2018-12-08 17:54:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:04,937 INFO L480 AbstractCegarLoop]: Abstraction has 3422 states and 8725 transitions. [2018-12-08 17:54:04,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:54:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8725 transitions. [2018-12-08 17:54:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-08 17:54:04,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:04,940 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:04,940 INFO L423 AbstractCegarLoop]: === Iteration 16 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:04,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:04,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2048458965, now seen corresponding path program 1 times [2018-12-08 17:54:04,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:04,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:04,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:04,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:04,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:04,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:54:04,992 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:04,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:54:04,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:54:04,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:54:04,993 INFO L87 Difference]: Start difference. First operand 3422 states and 8725 transitions. Second operand 6 states. [2018-12-08 17:54:05,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:05,096 INFO L93 Difference]: Finished difference Result 2862 states and 7069 transitions. [2018-12-08 17:54:05,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:54:05,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-08 17:54:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:05,098 INFO L225 Difference]: With dead ends: 2862 [2018-12-08 17:54:05,098 INFO L226 Difference]: Without dead ends: 2862 [2018-12-08 17:54:05,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:54:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2018-12-08 17:54:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2067. [2018-12-08 17:54:05,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2067 states. [2018-12-08 17:54:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 5267 transitions. [2018-12-08 17:54:05,113 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 5267 transitions. Word has length 92 [2018-12-08 17:54:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:05,113 INFO L480 AbstractCegarLoop]: Abstraction has 2067 states and 5267 transitions. [2018-12-08 17:54:05,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:54:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 5267 transitions. [2018-12-08 17:54:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-08 17:54:05,115 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:05,115 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:05,115 INFO L423 AbstractCegarLoop]: === Iteration 17 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:05,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1613356635, now seen corresponding path program 1 times [2018-12-08 17:54:05,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:05,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:05,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,116 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:05,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:05,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:54:05,150 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:05,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:54:05,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:54:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:54:05,150 INFO L87 Difference]: Start difference. First operand 2067 states and 5267 transitions. Second operand 5 states. [2018-12-08 17:54:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:05,243 INFO L93 Difference]: Finished difference Result 2387 states and 6067 transitions. [2018-12-08 17:54:05,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:54:05,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-12-08 17:54:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:05,245 INFO L225 Difference]: With dead ends: 2387 [2018-12-08 17:54:05,245 INFO L226 Difference]: Without dead ends: 2387 [2018-12-08 17:54:05,245 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:54:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2018-12-08 17:54:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2115. [2018-12-08 17:54:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2115 states. [2018-12-08 17:54:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 5387 transitions. [2018-12-08 17:54:05,259 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 5387 transitions. Word has length 94 [2018-12-08 17:54:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:05,259 INFO L480 AbstractCegarLoop]: Abstraction has 2115 states and 5387 transitions. [2018-12-08 17:54:05,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:54:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 5387 transitions. [2018-12-08 17:54:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-08 17:54:05,261 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:05,261 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:05,261 INFO L423 AbstractCegarLoop]: === Iteration 18 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:05,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:05,261 INFO L82 PathProgramCache]: Analyzing trace with hash -368592154, now seen corresponding path program 1 times [2018-12-08 17:54:05,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:05,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:05,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,262 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:54:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:54:05,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:54:05,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 17:54:05,380 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:54:05,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 17:54:05,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 17:54:05,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-08 17:54:05,381 INFO L87 Difference]: Start difference. First operand 2115 states and 5387 transitions. Second operand 12 states. [2018-12-08 17:54:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:54:05,785 INFO L93 Difference]: Finished difference Result 3902 states and 10089 transitions. [2018-12-08 17:54:05,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 17:54:05,785 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-12-08 17:54:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:54:05,787 INFO L225 Difference]: With dead ends: 3902 [2018-12-08 17:54:05,787 INFO L226 Difference]: Without dead ends: 2926 [2018-12-08 17:54:05,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2018-12-08 17:54:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2018-12-08 17:54:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2646. [2018-12-08 17:54:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2018-12-08 17:54:05,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 6640 transitions. [2018-12-08 17:54:05,805 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 6640 transitions. Word has length 94 [2018-12-08 17:54:05,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:54:05,805 INFO L480 AbstractCegarLoop]: Abstraction has 2646 states and 6640 transitions. [2018-12-08 17:54:05,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 17:54:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 6640 transitions. [2018-12-08 17:54:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-08 17:54:05,807 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:54:05,807 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:54:05,808 INFO L423 AbstractCegarLoop]: === Iteration 19 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:54:05,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:54:05,808 INFO L82 PathProgramCache]: Analyzing trace with hash -822908468, now seen corresponding path program 2 times [2018-12-08 17:54:05,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:54:05,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:54:05,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:54:05,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:54:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:54:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:54:05,847 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:54:05,918 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 17:54:05,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:54:05 BasicIcfg [2018-12-08 17:54:05,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:54:05,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:54:05,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:54:05,920 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:54:05,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:53:56" (3/4) ... [2018-12-08 17:54:05,922 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 17:54:05,999 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_483a00d8-dbe6-4882-a643-68ee362ee5f5/bin-2019/utaipan/witness.graphml [2018-12-08 17:54:05,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:54:06,000 INFO L168 Benchmark]: Toolchain (without parser) took 9840.79 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 952.4 MB in the beginning and 755.7 MB in the end (delta: 196.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,001 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:54:06,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,002 INFO L168 Benchmark]: Boogie Preprocessor took 18.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,002 INFO L168 Benchmark]: RCFGBuilder took 352.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,002 INFO L168 Benchmark]: TraceAbstraction took 8977.75 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 778.6 MB in the end (delta: 263.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,002 INFO L168 Benchmark]: Witness Printer took 79.09 ms. Allocated memory is still 2.2 GB. Free memory was 778.6 MB in the beginning and 755.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:54:06,004 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 371.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 352.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8977.75 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 778.6 MB in the end (delta: 263.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. * Witness Printer took 79.09 ms. Allocated memory is still 2.2 GB. Free memory was 778.6 MB in the beginning and 755.7 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L671] -1 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L673] -1 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L674] -1 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0] [L675] -1 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L677] -1 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L679] -1 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L680] -1 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L681] -1 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L682] -1 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L683] -1 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L684] -1 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L685] -1 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0] [L686] -1 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L687] -1 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L688] -1 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L689] -1 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L690] -1 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L691] -1 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L692] -1 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L693] -1 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L694] -1 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L695] -1 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L755] -1 pthread_t t2011; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L756] FCALL, FORK -1 pthread_create(&t2011, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L699] 0 y$w_buff1 = y$w_buff0 [L700] 0 y$w_buff0 = 2 [L701] 0 y$w_buff1_used = y$w_buff0_used [L702] 0 y$w_buff0_used = (_Bool)1 [L4] COND FALSE 0 !(!expression) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L704] 0 y$r_buff1_thd0 = y$r_buff0_thd0 [L705] 0 y$r_buff1_thd1 = y$r_buff0_thd1 [L706] 0 y$r_buff1_thd2 = y$r_buff0_thd2 [L707] 0 y$r_buff0_thd1 = (_Bool)1 [L710] 0 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L713] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L757] -1 pthread_t t2012; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L758] FCALL, FORK -1 pthread_create(&t2012, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L727] 1 __unbuffered_p1_EAX = x [L730] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L713] 0 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L714] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L733] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L733] EXPR 1 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L733] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L714] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L715] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L715] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L716] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L716] 0 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L717] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L717] 0 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L720] 0 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L733] 1 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L734] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L735] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L736] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L737] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L737] 1 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L740] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L760] -1 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L764] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L764] EXPR -1 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L764] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L764] -1 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L765] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L765] -1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L766] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L766] -1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L767] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L767] -1 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L768] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L768] -1 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L771] -1 weak$$choice0 = __VERIFIER_nondet_pointer() [L772] -1 weak$$choice2 = __VERIFIER_nondet_pointer() [L773] -1 y$flush_delayed = weak$$choice2 [L774] -1 y$mem_tmp = y VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L775] EXPR -1 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L775] -1 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L776] EXPR -1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L776] -1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L777] EXPR -1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L777] -1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L778] EXPR -1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L778] -1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L779] EXPR -1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] -1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L780] EXPR -1 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L780] -1 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L781] EXPR -1 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L781] -1 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L782] -1 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1) VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L783] EXPR -1 y$flush_delayed ? y$mem_tmp : y VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L783] -1 y = y$flush_delayed ? y$mem_tmp : y [L784] -1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] COND TRUE -1 !expression VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] -1 __VERIFIER_error() VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 179 locations, 3 error locations. UNSAFE Result, 8.9s OverallTime, 19 OverallIterations, 1 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4250 SDtfs, 3875 SDslu, 10039 SDs, 0 SdLazy, 3412 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 49 SyntacticMatches, 18 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37149occurred in iteration=2, 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: 2.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 66307 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1457 NumberOfCodeBlocks, 1457 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1345 ConstructedInterpolants, 0 QuantifiedInterpolants, 287841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...