./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_power.opt_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_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_power.opt_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/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 f1d9124df5aff3d93132caeaebf2b71e0ed41a1f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2018-12-09 01:38:11,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:38:11,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:38:11,022 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:38:11,022 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:38:11,023 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:38:11,023 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:38:11,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:38:11,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:38:11,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:38:11,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:38:11,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:38:11,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:38:11,027 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:38:11,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:38:11,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:38:11,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:38:11,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:38:11,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:38:11,030 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:38:11,031 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:38:11,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:38:11,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:38:11,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:38:11,033 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:38:11,033 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:38:11,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:38:11,034 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:38:11,034 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:38:11,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:38:11,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:38:11,035 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:38:11,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:38:11,035 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:38:11,036 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:38:11,036 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:38:11,036 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:38:11,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:38:11,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:38:11,044 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:38:11,044 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:38:11,044 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:38:11,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:38:11,045 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:38:11,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:38:11,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:38:11,046 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:38:11,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:38:11,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:38:11,047 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:38:11,047 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_49529ccc-1e3c-411c-88cf-f69be81d0943/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 -> f1d9124df5aff3d93132caeaebf2b71e0ed41a1f [2018-12-09 01:38:11,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:38:11,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:38:11,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:38:11,077 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:38:11,077 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:38:11,078 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe010_power.opt_false-unreach-call.i [2018-12-09 01:38:11,123 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/data/3607bdeb1/97bba45fe66640d2860dd8b2cc93b2ca/FLAG60cedb746 [2018-12-09 01:38:11,537 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:38:11,538 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/sv-benchmarks/c/pthread-wmm/safe010_power.opt_false-unreach-call.i [2018-12-09 01:38:11,545 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/data/3607bdeb1/97bba45fe66640d2860dd8b2cc93b2ca/FLAG60cedb746 [2018-12-09 01:38:11,554 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/data/3607bdeb1/97bba45fe66640d2860dd8b2cc93b2ca [2018-12-09 01:38:11,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:38:11,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:38:11,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:38:11,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:38:11,559 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:38:11,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628262cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11, skipping insertion in model container [2018-12-09 01:38:11,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:38:11,591 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:38:11,798 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:38:11,807 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:38:11,900 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:38:11,934 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:38:11,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11 WrapperNode [2018-12-09 01:38:11,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:38:11,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:38:11,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:38:11,935 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:38:11,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:38:11,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:38:11,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:38:11,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:38:11,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... [2018-12-09 01:38:11,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:38:11,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:38:11,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:38:11,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:38:11,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:38:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:38:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:38:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-09 01:38:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:38:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-09 01:38:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-09 01:38:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-09 01:38:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-09 01:38:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-09 01:38:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:38:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:38:12,030 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 01:38:12,361 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:38:12,361 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 01:38:12,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:38:12 BoogieIcfgContainer [2018-12-09 01:38:12,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:38:12,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:38:12,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:38:12,364 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:38:12,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:38:11" (1/3) ... [2018-12-09 01:38:12,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dae034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:38:12, skipping insertion in model container [2018-12-09 01:38:12,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:38:11" (2/3) ... [2018-12-09 01:38:12,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dae034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:38:12, skipping insertion in model container [2018-12-09 01:38:12,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:38:12" (3/3) ... [2018-12-09 01:38:12,366 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_power.opt_false-unreach-call.i [2018-12-09 01:38:12,386 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,387 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,388 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,388 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,388 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,388 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,388 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,389 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,390 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,391 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,392 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,393 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,394 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,395 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,396 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,397 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:38:12,401 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 01:38:12,401 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:38:12,406 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 01:38:12,417 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 01:38:12,431 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:38:12,431 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:38:12,431 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:38:12,432 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:38:12,432 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:38:12,432 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:38:12,432 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:38:12,432 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:38:12,438 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141places, 179 transitions [2018-12-09 01:38:13,297 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25103 states. [2018-12-09 01:38:13,298 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states. [2018-12-09 01:38:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 01:38:13,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:13,303 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:38:13,304 INFO L423 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:13,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:13,308 INFO L82 PathProgramCache]: Analyzing trace with hash -969782754, now seen corresponding path program 1 times [2018-12-09 01:38:13,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:13,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:13,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:13,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:13,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:13,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:13,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:13,443 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:13,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:13,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:13,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:13,456 INFO L87 Difference]: Start difference. First operand 25103 states. Second operand 4 states. [2018-12-09 01:38:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:13,837 INFO L93 Difference]: Finished difference Result 45395 states and 177649 transitions. [2018-12-09 01:38:13,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:38:13,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-12-09 01:38:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:13,973 INFO L225 Difference]: With dead ends: 45395 [2018-12-09 01:38:13,973 INFO L226 Difference]: Without dead ends: 40635 [2018-12-09 01:38:13,974 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 [2018-12-09 01:38:14,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40635 states. [2018-12-09 01:38:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40635 to 23669. [2018-12-09 01:38:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23669 states. [2018-12-09 01:38:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23669 states to 23669 states and 92566 transitions. [2018-12-09 01:38:14,654 INFO L78 Accepts]: Start accepts. Automaton has 23669 states and 92566 transitions. Word has length 32 [2018-12-09 01:38:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:14,654 INFO L480 AbstractCegarLoop]: Abstraction has 23669 states and 92566 transitions. [2018-12-09 01:38:14,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23669 states and 92566 transitions. [2018-12-09 01:38:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 01:38:14,657 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:14,657 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] [2018-12-09 01:38:14,658 INFO L423 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:14,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:14,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1661840205, now seen corresponding path program 1 times [2018-12-09 01:38:14,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:14,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:14,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:14,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:14,661 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:14,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:14,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 01:38:14,714 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:14,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 01:38:14,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 01:38:14,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:14,715 INFO L87 Difference]: Start difference. First operand 23669 states and 92566 transitions. Second operand 5 states. [2018-12-09 01:38:15,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:15,284 INFO L93 Difference]: Finished difference Result 64837 states and 241396 transitions. [2018-12-09 01:38:15,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:38:15,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-12-09 01:38:15,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:15,443 INFO L225 Difference]: With dead ends: 64837 [2018-12-09 01:38:15,443 INFO L226 Difference]: Without dead ends: 64677 [2018-12-09 01:38:15,443 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 [2018-12-09 01:38:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64677 states. [2018-12-09 01:38:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64677 to 37149. [2018-12-09 01:38:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37149 states. [2018-12-09 01:38:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37149 states to 37149 states and 138311 transitions. [2018-12-09 01:38:16,278 INFO L78 Accepts]: Start accepts. Automaton has 37149 states and 138311 transitions. Word has length 43 [2018-12-09 01:38:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:16,278 INFO L480 AbstractCegarLoop]: Abstraction has 37149 states and 138311 transitions. [2018-12-09 01:38:16,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 01:38:16,279 INFO L276 IsEmpty]: Start isEmpty. Operand 37149 states and 138311 transitions. [2018-12-09 01:38:16,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 01:38:16,281 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:16,281 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] [2018-12-09 01:38:16,281 INFO L423 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:16,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:16,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1508943518, now seen corresponding path program 1 times [2018-12-09 01:38:16,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:16,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:16,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:16,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:16,284 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:16,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:16,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:16,321 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:16,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:16,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:16,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:16,322 INFO L87 Difference]: Start difference. First operand 37149 states and 138311 transitions. Second operand 4 states. [2018-12-09 01:38:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:16,364 INFO L93 Difference]: Finished difference Result 12371 states and 41204 transitions. [2018-12-09 01:38:16,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:38:16,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-12-09 01:38:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:16,380 INFO L225 Difference]: With dead ends: 12371 [2018-12-09 01:38:16,380 INFO L226 Difference]: Without dead ends: 11850 [2018-12-09 01:38:16,380 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11850 states. [2018-12-09 01:38:16,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11850 to 11850. [2018-12-09 01:38:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11850 states. [2018-12-09 01:38:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 39649 transitions. [2018-12-09 01:38:16,622 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 39649 transitions. Word has length 44 [2018-12-09 01:38:16,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:16,622 INFO L480 AbstractCegarLoop]: Abstraction has 11850 states and 39649 transitions. [2018-12-09 01:38:16,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:16,622 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 39649 transitions. [2018-12-09 01:38:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 01:38:16,625 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:16,625 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] [2018-12-09 01:38:16,625 INFO L423 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:16,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:16,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1699267050, now seen corresponding path program 1 times [2018-12-09 01:38:16,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:16,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:16,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:16,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:16,627 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:16,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:16,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:16,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:16,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:16,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:16,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:16,686 INFO L87 Difference]: Start difference. First operand 11850 states and 39649 transitions. Second operand 4 states. [2018-12-09 01:38:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:16,839 INFO L93 Difference]: Finished difference Result 17026 states and 55724 transitions. [2018-12-09 01:38:16,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:38:16,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-12-09 01:38:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:16,859 INFO L225 Difference]: With dead ends: 17026 [2018-12-09 01:38:16,859 INFO L226 Difference]: Without dead ends: 17026 [2018-12-09 01:38:16,859 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 [2018-12-09 01:38:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17026 states. [2018-12-09 01:38:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17026 to 12886. [2018-12-09 01:38:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12886 states. [2018-12-09 01:38:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12886 states to 12886 states and 42751 transitions. [2018-12-09 01:38:17,021 INFO L78 Accepts]: Start accepts. Automaton has 12886 states and 42751 transitions. Word has length 57 [2018-12-09 01:38:17,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:17,021 INFO L480 AbstractCegarLoop]: Abstraction has 12886 states and 42751 transitions. [2018-12-09 01:38:17,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:17,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12886 states and 42751 transitions. [2018-12-09 01:38:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 01:38:17,025 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:17,026 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] [2018-12-09 01:38:17,026 INFO L423 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:17,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:17,026 INFO L82 PathProgramCache]: Analyzing trace with hash -852889911, now seen corresponding path program 1 times [2018-12-09 01:38:17,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:17,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:17,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:17,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:17,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:17,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:17,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:17,080 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:17,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:17,081 INFO L87 Difference]: Start difference. First operand 12886 states and 42751 transitions. Second operand 4 states. [2018-12-09 01:38:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:17,465 INFO L93 Difference]: Finished difference Result 18381 states and 60008 transitions. [2018-12-09 01:38:17,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:38:17,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-12-09 01:38:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:17,486 INFO L225 Difference]: With dead ends: 18381 [2018-12-09 01:38:17,486 INFO L226 Difference]: Without dead ends: 18381 [2018-12-09 01:38:17,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18381 states. [2018-12-09 01:38:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18381 to 16342. [2018-12-09 01:38:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16342 states. [2018-12-09 01:38:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16342 states to 16342 states and 53833 transitions. [2018-12-09 01:38:17,669 INFO L78 Accepts]: Start accepts. Automaton has 16342 states and 53833 transitions. Word has length 57 [2018-12-09 01:38:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:17,669 INFO L480 AbstractCegarLoop]: Abstraction has 16342 states and 53833 transitions. [2018-12-09 01:38:17,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 16342 states and 53833 transitions. [2018-12-09 01:38:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 01:38:17,673 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:17,674 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] [2018-12-09 01:38:17,674 INFO L423 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:17,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:17,674 INFO L82 PathProgramCache]: Analyzing trace with hash 500419786, now seen corresponding path program 1 times [2018-12-09 01:38:17,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:17,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:17,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:17,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:17,676 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:17,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:17,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:38:17,740 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:17,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:38:17,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:38:17,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:38:17,741 INFO L87 Difference]: Start difference. First operand 16342 states and 53833 transitions. Second operand 6 states. [2018-12-09 01:38:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:18,123 INFO L93 Difference]: Finished difference Result 24888 states and 80174 transitions. [2018-12-09 01:38:18,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:38:18,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 01:38:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:18,156 INFO L225 Difference]: With dead ends: 24888 [2018-12-09 01:38:18,156 INFO L226 Difference]: Without dead ends: 24888 [2018-12-09 01:38:18,156 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 [2018-12-09 01:38:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2018-12-09 01:38:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 16252. [2018-12-09 01:38:18,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16252 states. [2018-12-09 01:38:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 52196 transitions. [2018-12-09 01:38:18,410 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 52196 transitions. Word has length 57 [2018-12-09 01:38:18,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:18,410 INFO L480 AbstractCegarLoop]: Abstraction has 16252 states and 52196 transitions. [2018-12-09 01:38:18,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:38:18,410 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 52196 transitions. [2018-12-09 01:38:18,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 01:38:18,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:18,413 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] [2018-12-09 01:38:18,413 INFO L423 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:18,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:18,413 INFO L82 PathProgramCache]: Analyzing trace with hash 207016779, now seen corresponding path program 1 times [2018-12-09 01:38:18,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:18,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:18,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:18,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:18,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 01:38:18,454 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:18,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 01:38:18,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 01:38:18,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:18,454 INFO L87 Difference]: Start difference. First operand 16252 states and 52196 transitions. Second operand 5 states. [2018-12-09 01:38:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:18,476 INFO L93 Difference]: Finished difference Result 2696 states and 7013 transitions. [2018-12-09 01:38:18,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 01:38:18,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-12-09 01:38:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:18,478 INFO L225 Difference]: With dead ends: 2696 [2018-12-09 01:38:18,478 INFO L226 Difference]: Without dead ends: 2224 [2018-12-09 01:38:18,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:38:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2018-12-09 01:38:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2150. [2018-12-09 01:38:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2018-12-09 01:38:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 5587 transitions. [2018-12-09 01:38:18,494 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 5587 transitions. Word has length 57 [2018-12-09 01:38:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:18,494 INFO L480 AbstractCegarLoop]: Abstraction has 2150 states and 5587 transitions. [2018-12-09 01:38:18,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 01:38:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 5587 transitions. [2018-12-09 01:38:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:18,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:18,496 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] [2018-12-09 01:38:18,496 INFO L423 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:18,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:18,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2072438205, now seen corresponding path program 1 times [2018-12-09 01:38:18,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:18,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:18,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,498 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:18,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:18,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:18,528 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:18,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:18,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:18,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:18,529 INFO L87 Difference]: Start difference. First operand 2150 states and 5587 transitions. Second operand 4 states. [2018-12-09 01:38:18,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:18,616 INFO L93 Difference]: Finished difference Result 3137 states and 7854 transitions. [2018-12-09 01:38:18,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:38:18,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-12-09 01:38:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:18,619 INFO L225 Difference]: With dead ends: 3137 [2018-12-09 01:38:18,619 INFO L226 Difference]: Without dead ends: 3137 [2018-12-09 01:38:18,619 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 [2018-12-09 01:38:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2018-12-09 01:38:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 2234. [2018-12-09 01:38:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2234 states. [2018-12-09 01:38:18,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 5761 transitions. [2018-12-09 01:38:18,636 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 5761 transitions. Word has length 92 [2018-12-09 01:38:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:18,637 INFO L480 AbstractCegarLoop]: Abstraction has 2234 states and 5761 transitions. [2018-12-09 01:38:18,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 5761 transitions. [2018-12-09 01:38:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:18,638 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:18,639 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] [2018-12-09 01:38:18,639 INFO L423 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:18,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:18,639 INFO L82 PathProgramCache]: Analyzing trace with hash 889090908, now seen corresponding path program 1 times [2018-12-09 01:38:18,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:18,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:18,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,640 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:18,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:18,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:38:18,722 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:18,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:38:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:38:18,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:38:18,723 INFO L87 Difference]: Start difference. First operand 2234 states and 5761 transitions. Second operand 6 states. [2018-12-09 01:38:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:18,871 INFO L93 Difference]: Finished difference Result 2513 states and 6342 transitions. [2018-12-09 01:38:18,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:38:18,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-09 01:38:18,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:18,874 INFO L225 Difference]: With dead ends: 2513 [2018-12-09 01:38:18,874 INFO L226 Difference]: Without dead ends: 2513 [2018-12-09 01:38:18,874 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 [2018-12-09 01:38:18,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2018-12-09 01:38:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2048. [2018-12-09 01:38:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2018-12-09 01:38:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 5299 transitions. [2018-12-09 01:38:18,899 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 5299 transitions. Word has length 92 [2018-12-09 01:38:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:18,899 INFO L480 AbstractCegarLoop]: Abstraction has 2048 states and 5299 transitions. [2018-12-09 01:38:18,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:38:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 5299 transitions. [2018-12-09 01:38:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:18,901 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:18,901 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] [2018-12-09 01:38:18,901 INFO L423 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:18,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:18,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1759073572, now seen corresponding path program 1 times [2018-12-09 01:38:18,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:18,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:18,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:18,903 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:18,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:18,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:38:18,978 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:18,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:38:18,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:38:18,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:38:18,979 INFO L87 Difference]: Start difference. First operand 2048 states and 5299 transitions. Second operand 6 states. [2018-12-09 01:38:19,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:19,089 INFO L93 Difference]: Finished difference Result 2241 states and 5642 transitions. [2018-12-09 01:38:19,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:38:19,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-09 01:38:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:19,091 INFO L225 Difference]: With dead ends: 2241 [2018-12-09 01:38:19,091 INFO L226 Difference]: Without dead ends: 2241 [2018-12-09 01:38:19,092 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 [2018-12-09 01:38:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2018-12-09 01:38:19,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2072. [2018-12-09 01:38:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2018-12-09 01:38:19,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 5304 transitions. [2018-12-09 01:38:19,104 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 5304 transitions. Word has length 92 [2018-12-09 01:38:19,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:19,105 INFO L480 AbstractCegarLoop]: Abstraction has 2072 states and 5304 transitions. [2018-12-09 01:38:19,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:38:19,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 5304 transitions. [2018-12-09 01:38:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:19,106 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:19,106 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] [2018-12-09 01:38:19,106 INFO L423 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:19,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:19,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1511199803, now seen corresponding path program 1 times [2018-12-09 01:38:19,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:19,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:19,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:19,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:19,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 01:38:19,159 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:19,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 01:38:19,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 01:38:19,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:19,160 INFO L87 Difference]: Start difference. First operand 2072 states and 5304 transitions. Second operand 5 states. [2018-12-09 01:38:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:19,291 INFO L93 Difference]: Finished difference Result 2853 states and 7060 transitions. [2018-12-09 01:38:19,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:38:19,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-12-09 01:38:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:19,293 INFO L225 Difference]: With dead ends: 2853 [2018-12-09 01:38:19,293 INFO L226 Difference]: Without dead ends: 2853 [2018-12-09 01:38:19,294 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 [2018-12-09 01:38:19,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2018-12-09 01:38:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2244. [2018-12-09 01:38:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-12-09 01:38:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 5654 transitions. [2018-12-09 01:38:19,311 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 5654 transitions. Word has length 92 [2018-12-09 01:38:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:19,311 INFO L480 AbstractCegarLoop]: Abstraction has 2244 states and 5654 transitions. [2018-12-09 01:38:19,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 01:38:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 5654 transitions. [2018-12-09 01:38:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:19,313 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:19,313 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] [2018-12-09 01:38:19,313 INFO L423 AbstractCegarLoop]: === Iteration 12 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:19,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:19,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1438573394, now seen corresponding path program 2 times [2018-12-09 01:38:19,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:19,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:19,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,314 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:19,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:19,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:38:19,352 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:19,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:38:19,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:38:19,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:38:19,353 INFO L87 Difference]: Start difference. First operand 2244 states and 5654 transitions. Second operand 4 states. [2018-12-09 01:38:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:19,433 INFO L93 Difference]: Finished difference Result 2580 states and 6574 transitions. [2018-12-09 01:38:19,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:38:19,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-12-09 01:38:19,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:19,435 INFO L225 Difference]: With dead ends: 2580 [2018-12-09 01:38:19,435 INFO L226 Difference]: Without dead ends: 2580 [2018-12-09 01:38:19,435 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 [2018-12-09 01:38:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-12-09 01:38:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2548. [2018-12-09 01:38:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2018-12-09 01:38:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 6494 transitions. [2018-12-09 01:38:19,452 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 6494 transitions. Word has length 92 [2018-12-09 01:38:19,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:19,452 INFO L480 AbstractCegarLoop]: Abstraction has 2548 states and 6494 transitions. [2018-12-09 01:38:19,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:38:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 6494 transitions. [2018-12-09 01:38:19,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:19,454 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:19,454 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] [2018-12-09 01:38:19,454 INFO L423 AbstractCegarLoop]: === Iteration 13 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:19,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:19,454 INFO L82 PathProgramCache]: Analyzing trace with hash -638635949, now seen corresponding path program 1 times [2018-12-09 01:38:19,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:19,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,455 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 01:38:19,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,455 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:19,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:19,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 01:38:19,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:19,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:38:19,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:38:19,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:38:19,545 INFO L87 Difference]: Start difference. First operand 2548 states and 6494 transitions. Second operand 8 states. [2018-12-09 01:38:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:19,815 INFO L93 Difference]: Finished difference Result 3957 states and 10028 transitions. [2018-12-09 01:38:19,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 01:38:19,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2018-12-09 01:38:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:19,819 INFO L225 Difference]: With dead ends: 3957 [2018-12-09 01:38:19,819 INFO L226 Difference]: Without dead ends: 3925 [2018-12-09 01:38:19,819 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 [2018-12-09 01:38:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2018-12-09 01:38:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3392. [2018-12-09 01:38:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3392 states. [2018-12-09 01:38:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 8645 transitions. [2018-12-09 01:38:19,847 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 8645 transitions. Word has length 92 [2018-12-09 01:38:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:19,847 INFO L480 AbstractCegarLoop]: Abstraction has 3392 states and 8645 transitions. [2018-12-09 01:38:19,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:38:19,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 8645 transitions. [2018-12-09 01:38:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:19,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:19,849 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] [2018-12-09 01:38:19,850 INFO L423 AbstractCegarLoop]: === Iteration 14 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:19,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:19,850 INFO L82 PathProgramCache]: Analyzing trace with hash 322978068, now seen corresponding path program 1 times [2018-12-09 01:38:19,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:19,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:19,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:19,851 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:19,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:19,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:38:19,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:19,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:38:19,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:38:19,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:38:19,917 INFO L87 Difference]: Start difference. First operand 3392 states and 8645 transitions. Second operand 7 states. [2018-12-09 01:38:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:20,146 INFO L93 Difference]: Finished difference Result 4456 states and 11306 transitions. [2018-12-09 01:38:20,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:38:20,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2018-12-09 01:38:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:20,149 INFO L225 Difference]: With dead ends: 4456 [2018-12-09 01:38:20,149 INFO L226 Difference]: Without dead ends: 4456 [2018-12-09 01:38:20,149 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 [2018-12-09 01:38:20,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2018-12-09 01:38:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 3856. [2018-12-09 01:38:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2018-12-09 01:38:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 9887 transitions. [2018-12-09 01:38:20,190 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 9887 transitions. Word has length 92 [2018-12-09 01:38:20,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:20,190 INFO L480 AbstractCegarLoop]: Abstraction has 3856 states and 9887 transitions. [2018-12-09 01:38:20,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:38:20,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 9887 transitions. [2018-12-09 01:38:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:20,193 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:20,193 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] [2018-12-09 01:38:20,193 INFO L423 AbstractCegarLoop]: === Iteration 15 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:20,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:20,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1567742549, now seen corresponding path program 1 times [2018-12-09 01:38:20,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:20,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:20,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:20,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:20,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 01:38:20,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:20,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 01:38:20,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 01:38:20,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:20,238 INFO L87 Difference]: Start difference. First operand 3856 states and 9887 transitions. Second operand 5 states. [2018-12-09 01:38:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:20,260 INFO L93 Difference]: Finished difference Result 5688 states and 14819 transitions. [2018-12-09 01:38:20,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:38:20,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-12-09 01:38:20,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:20,265 INFO L225 Difference]: With dead ends: 5688 [2018-12-09 01:38:20,265 INFO L226 Difference]: Without dead ends: 5688 [2018-12-09 01:38:20,265 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 [2018-12-09 01:38:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5688 states. [2018-12-09 01:38:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5688 to 3422. [2018-12-09 01:38:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3422 states. [2018-12-09 01:38:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8725 transitions. [2018-12-09 01:38:20,299 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8725 transitions. Word has length 92 [2018-12-09 01:38:20,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:20,299 INFO L480 AbstractCegarLoop]: Abstraction has 3422 states and 8725 transitions. [2018-12-09 01:38:20,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 01:38:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8725 transitions. [2018-12-09 01:38:20,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 01:38:20,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:20,302 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] [2018-12-09 01:38:20,302 INFO L423 AbstractCegarLoop]: === Iteration 16 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:20,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:20,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2048458965, now seen corresponding path program 1 times [2018-12-09 01:38:20,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:20,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:20,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:20,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:20,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:38:20,365 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:20,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:38:20,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:38:20,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:38:20,365 INFO L87 Difference]: Start difference. First operand 3422 states and 8725 transitions. Second operand 6 states. [2018-12-09 01:38:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:20,469 INFO L93 Difference]: Finished difference Result 2862 states and 7069 transitions. [2018-12-09 01:38:20,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:38:20,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-12-09 01:38:20,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:20,471 INFO L225 Difference]: With dead ends: 2862 [2018-12-09 01:38:20,471 INFO L226 Difference]: Without dead ends: 2862 [2018-12-09 01:38:20,471 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 [2018-12-09 01:38:20,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2018-12-09 01:38:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2067. [2018-12-09 01:38:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2067 states. [2018-12-09 01:38:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 5267 transitions. [2018-12-09 01:38:20,486 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 5267 transitions. Word has length 92 [2018-12-09 01:38:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:20,486 INFO L480 AbstractCegarLoop]: Abstraction has 2067 states and 5267 transitions. [2018-12-09 01:38:20,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:38:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 5267 transitions. [2018-12-09 01:38:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-09 01:38:20,488 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:20,488 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] [2018-12-09 01:38:20,488 INFO L423 AbstractCegarLoop]: === Iteration 17 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:20,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1613356635, now seen corresponding path program 1 times [2018-12-09 01:38:20,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:20,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:20,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,489 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:20,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:20,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 01:38:20,526 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:20,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 01:38:20,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 01:38:20,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 01:38:20,526 INFO L87 Difference]: Start difference. First operand 2067 states and 5267 transitions. Second operand 5 states. [2018-12-09 01:38:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:20,639 INFO L93 Difference]: Finished difference Result 2387 states and 6067 transitions. [2018-12-09 01:38:20,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:38:20,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-12-09 01:38:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:20,641 INFO L225 Difference]: With dead ends: 2387 [2018-12-09 01:38:20,641 INFO L226 Difference]: Without dead ends: 2387 [2018-12-09 01:38:20,642 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 [2018-12-09 01:38:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2018-12-09 01:38:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2115. [2018-12-09 01:38:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2115 states. [2018-12-09 01:38:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 5387 transitions. [2018-12-09 01:38:20,656 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 5387 transitions. Word has length 94 [2018-12-09 01:38:20,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:20,656 INFO L480 AbstractCegarLoop]: Abstraction has 2115 states and 5387 transitions. [2018-12-09 01:38:20,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 01:38:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 5387 transitions. [2018-12-09 01:38:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-09 01:38:20,658 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:20,658 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] [2018-12-09 01:38:20,658 INFO L423 AbstractCegarLoop]: === Iteration 18 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:20,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:20,658 INFO L82 PathProgramCache]: Analyzing trace with hash -368592154, now seen corresponding path program 1 times [2018-12-09 01:38:20,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:20,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:20,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:20,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:38:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:38:20,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:38:20,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 01:38:20,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:38:20,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 01:38:20,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 01:38:20,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 01:38:20,760 INFO L87 Difference]: Start difference. First operand 2115 states and 5387 transitions. Second operand 12 states. [2018-12-09 01:38:21,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:38:21,145 INFO L93 Difference]: Finished difference Result 3902 states and 10089 transitions. [2018-12-09 01:38:21,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 01:38:21,145 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-12-09 01:38:21,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:38:21,147 INFO L225 Difference]: With dead ends: 3902 [2018-12-09 01:38:21,148 INFO L226 Difference]: Without dead ends: 2926 [2018-12-09 01:38:21,148 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 [2018-12-09 01:38:21,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2018-12-09 01:38:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2646. [2018-12-09 01:38:21,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2018-12-09 01:38:21,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 6640 transitions. [2018-12-09 01:38:21,166 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 6640 transitions. Word has length 94 [2018-12-09 01:38:21,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:38:21,166 INFO L480 AbstractCegarLoop]: Abstraction has 2646 states and 6640 transitions. [2018-12-09 01:38:21,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 01:38:21,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 6640 transitions. [2018-12-09 01:38:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-09 01:38:21,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:38:21,168 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] [2018-12-09 01:38:21,169 INFO L423 AbstractCegarLoop]: === Iteration 19 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:38:21,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:38:21,169 INFO L82 PathProgramCache]: Analyzing trace with hash -822908468, now seen corresponding path program 2 times [2018-12-09 01:38:21,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:38:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:21,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:38:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:38:21,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:38:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:38:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:38:21,206 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:38:21,268 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 01:38:21,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:38:21 BasicIcfg [2018-12-09 01:38:21,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:38:21,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:38:21,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:38:21,270 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:38:21,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:38:12" (3/4) ... [2018-12-09 01:38:21,272 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 01:38:21,337 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49529ccc-1e3c-411c-88cf-f69be81d0943/bin-2019/utaipan/witness.graphml [2018-12-09 01:38:21,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:38:21,337 INFO L168 Benchmark]: Toolchain (without parser) took 9781.22 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 948.1 MB in the beginning and 1.4 GB in the end (delta: -459.7 MB). Peak memory consumption was 704.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,338 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:38:21,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,339 INFO L168 Benchmark]: Boogie Preprocessor took 19.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,339 INFO L168 Benchmark]: RCFGBuilder took 365.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,339 INFO L168 Benchmark]: TraceAbstraction took 8907.61 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -424.2 MB). Peak memory consumption was 635.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,339 INFO L168 Benchmark]: Witness Printer took 67.15 ms. Allocated memory is still 2.2 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:38:21,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 365.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8907.61 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -424.2 MB). Peak memory consumption was 635.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.15 ms. Allocated memory is still 2.2 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 44.6 MB). Peak memory consumption was 44.6 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$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L755] -1 pthread_t t2013; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L756] FCALL, FORK -1 pthread_create(&t2013, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$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$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L757] -1 pthread_t t2014; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L758] FCALL, FORK -1 pthread_create(&t2014, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$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, 8.8s 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: 2.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 66307 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s 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...