java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:56:19,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:56:19,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:56:19,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:56:19,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:56:19,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:56:19,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:56:19,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:56:19,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:56:19,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:56:19,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:56:19,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:56:19,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:56:19,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:56:19,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:56:19,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:56:19,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:56:19,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:56:19,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:56:19,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:56:19,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:56:19,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:56:20,001 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:56:20,001 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:56:20,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:56:20,002 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:56:20,003 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:56:20,004 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:56:20,005 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:56:20,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:56:20,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:56:20,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 07:56:20,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 07:56:20,008 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 07:56:20,009 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 07:56:20,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 07:56:20,010 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 07:56:20,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:56:20,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:56:20,026 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:56:20,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:56:20,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:56:20,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:56:20,027 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:56:20,028 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:56:20,029 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:56:20,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:56:20,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:56:20,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:56:20,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:56:20,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:56:20,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:56:20,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:56:20,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:56:20,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:56:20,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:56:20,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:56:20,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:56:20,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:56:20,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:56:20,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:56:20,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:56:20,033 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:56:20,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:56:20,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:56:20,033 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:56:20,033 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:56:20,034 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:56:20,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:56:20,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:56:20,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:56:20,126 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:56:20,126 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:56:20,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-27 07:56:20,195 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/494615861/fb98c76418ef426895aaf25c3c1e6705/FLAG2d05eb251 [2018-10-27 07:56:20,988 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:56:20,989 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-27 07:56:21,023 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/494615861/fb98c76418ef426895aaf25c3c1e6705/FLAG2d05eb251 [2018-10-27 07:56:21,039 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/494615861/fb98c76418ef426895aaf25c3c1e6705 [2018-10-27 07:56:21,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:56:21,053 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:56:21,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:56:21,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:56:21,059 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:56:21,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:56:21" (1/1) ... [2018-10-27 07:56:21,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fe24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:21, skipping insertion in model container [2018-10-27 07:56:21,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:56:21" (1/1) ... [2018-10-27 07:56:21,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:56:21,257 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:56:22,758 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:56:22,763 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:56:23,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:56:23,505 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:56:23,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23 WrapperNode [2018-10-27 07:56:23,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:56:23,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:56:23,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:56:23,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:56:23,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:23,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:56:24,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:56:24,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:56:24,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:56:24,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... [2018-10-27 07:56:24,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:56:24,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:56:24,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:56:24,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:56:24,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-27 07:56:24,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:56:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:56:24,578 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:56:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:56:24,578 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:56:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:56:24,578 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:56:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:56:24,579 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:56:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:56:24,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:56:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:56:24,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:56:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:56:35,189 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:56:35,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:56:35 BoogieIcfgContainer [2018-10-27 07:56:35,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:56:35,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:56:35,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:56:35,194 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:56:35,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:56:21" (1/3) ... [2018-10-27 07:56:35,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4912bff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:56:35, skipping insertion in model container [2018-10-27 07:56:35,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:56:23" (2/3) ... [2018-10-27 07:56:35,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4912bff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:56:35, skipping insertion in model container [2018-10-27 07:56:35,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:56:35" (3/3) ... [2018-10-27 07:56:35,199 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-10-27 07:56:35,211 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:56:35,224 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:56:35,245 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:56:35,311 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:56:35,312 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:56:35,312 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:56:35,312 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:56:35,312 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:56:35,312 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:56:35,312 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:56:35,313 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:56:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 07:56:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-27 07:56:35,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:35,369 INFO L375 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] [2018-10-27 07:56:35,371 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:35,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:35,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1389126997, now seen corresponding path program 1 times [2018-10-27 07:56:35,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:35,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:35,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:35,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:35,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:56:35,908 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:56:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:56:36,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:56:36,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 07:56:36,014 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:56:36,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 07:56:36,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 07:56:36,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:56:36,040 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-27 07:56:45,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:56:45,522 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-10-27 07:56:45,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 07:56:45,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-10-27 07:56:45,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:56:45,558 INFO L225 Difference]: With dead ends: 3087 [2018-10-27 07:56:45,559 INFO L226 Difference]: Without dead ends: 1965 [2018-10-27 07:56:45,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:56:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-10-27 07:56:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-10-27 07:56:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-27 07:56:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-10-27 07:56:45,730 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 61 [2018-10-27 07:56:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:56:45,731 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-10-27 07:56:45,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 07:56:45,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-10-27 07:56:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-27 07:56:45,739 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:45,739 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:56:45,740 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:45,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:45,740 INFO L82 PathProgramCache]: Analyzing trace with hash -159322310, now seen corresponding path program 1 times [2018-10-27 07:56:45,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:45,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:45,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:45,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:45,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:56:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:56:46,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:56:46,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:56:46,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:56:46,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:56:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:56:46,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:56:46,156 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-10-27 07:56:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:56:59,622 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-10-27 07:56:59,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:56:59,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-27 07:56:59,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:56:59,663 INFO L225 Difference]: With dead ends: 5634 [2018-10-27 07:56:59,664 INFO L226 Difference]: Without dead ends: 3681 [2018-10-27 07:56:59,671 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:56:59,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-10-27 07:56:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-10-27 07:56:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-10-27 07:56:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-10-27 07:56:59,801 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 138 [2018-10-27 07:56:59,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:56:59,801 INFO L481 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-10-27 07:56:59,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:56:59,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-10-27 07:56:59,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-27 07:56:59,816 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:56:59,816 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:56:59,817 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:56:59,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:56:59,817 INFO L82 PathProgramCache]: Analyzing trace with hash -587412254, now seen corresponding path program 1 times [2018-10-27 07:56:59,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:56:59,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:59,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:56:59,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:56:59,819 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:56:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:57:00,197 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:57:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:57:00,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:57:00,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:57:00,591 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:57:00,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:57:00,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:57:00,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:57:00,592 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-10-27 07:57:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:57:14,270 INFO L93 Difference]: Finished difference Result 12391 states and 20613 transitions. [2018-10-27 07:57:14,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:57:14,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-27 07:57:14,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:57:14,333 INFO L225 Difference]: With dead ends: 12391 [2018-10-27 07:57:14,333 INFO L226 Difference]: Without dead ends: 8747 [2018-10-27 07:57:14,359 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:57:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2018-10-27 07:57:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8687. [2018-10-27 07:57:14,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8687 states. [2018-10-27 07:57:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 12872 transitions. [2018-10-27 07:57:14,654 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 12872 transitions. Word has length 157 [2018-10-27 07:57:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:57:14,655 INFO L481 AbstractCegarLoop]: Abstraction has 8687 states and 12872 transitions. [2018-10-27 07:57:14,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:57:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 12872 transitions. [2018-10-27 07:57:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-27 07:57:14,661 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:57:14,661 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:57:14,662 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:57:14,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:57:14,665 INFO L82 PathProgramCache]: Analyzing trace with hash 955353466, now seen corresponding path program 1 times [2018-10-27 07:57:14,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:57:14,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:57:14,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:57:14,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:57:14,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:57:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:57:15,018 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:57:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:57:15,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:57:15,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:57:15,178 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:57:15,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:57:15,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:57:15,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:57:15,180 INFO L87 Difference]: Start difference. First operand 8687 states and 12872 transitions. Second operand 6 states. [2018-10-27 07:57:26,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:57:26,887 INFO L93 Difference]: Finished difference Result 22923 states and 34949 transitions. [2018-10-27 07:57:26,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:57:26,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-27 07:57:26,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:57:26,990 INFO L225 Difference]: With dead ends: 22923 [2018-10-27 07:57:26,990 INFO L226 Difference]: Without dead ends: 14242 [2018-10-27 07:57:27,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:57:27,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2018-10-27 07:57:27,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 14068. [2018-10-27 07:57:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14068 states. [2018-10-27 07:57:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14068 states to 14068 states and 19976 transitions. [2018-10-27 07:57:27,432 INFO L78 Accepts]: Start accepts. Automaton has 14068 states and 19976 transitions. Word has length 169 [2018-10-27 07:57:27,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:57:27,432 INFO L481 AbstractCegarLoop]: Abstraction has 14068 states and 19976 transitions. [2018-10-27 07:57:27,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:57:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 14068 states and 19976 transitions. [2018-10-27 07:57:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-27 07:57:27,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:57:27,445 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:57:27,445 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:57:27,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:57:27,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1006516317, now seen corresponding path program 1 times [2018-10-27 07:57:27,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:57:27,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:57:27,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:57:27,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:57:27,447 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:57:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:57:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 07:57:27,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:57:27,800 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:57:27,802 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-10-27 07:57:27,806 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 07:57:27,877 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:57:27,878 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:57:28,440 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:57:28,448 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 07:57:28,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:57:28,492 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:57:29,040 INFO L227 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 71.55% of their original sizes. [2018-10-27 07:57:29,040 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:57:29,153 INFO L415 sIntCurrentIteration]: We unified 223 AI predicates to 223 [2018-10-27 07:57:29,154 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:57:29,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:57:29,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-27 07:57:29,155 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:57:29,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:57:29,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:57:29,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:57:29,157 INFO L87 Difference]: Start difference. First operand 14068 states and 19976 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 08:00:25,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:00:25,142 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:00:25,148 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:00:25,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:00:25 BoogieIcfgContainer [2018-10-27 08:00:25,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:00:25,149 INFO L168 Benchmark]: Toolchain (without parser) took 244097.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,150 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:00:25,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2452.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 561.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 813.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,153 INFO L168 Benchmark]: Boogie Preprocessor took 437.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,154 INFO L168 Benchmark]: RCFGBuilder took 10681.70 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 201.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -5.8 MB). Peak memory consumption was 680.8 MB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,155 INFO L168 Benchmark]: TraceAbstraction took 229957.73 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: -711.9 MB). Peak memory consumption was 938.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:00:25,161 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2452.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 561.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 813.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 437.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10681.70 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 201.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -5.8 MB). Peak memory consumption was 680.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229957.73 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.9 GB in the end (delta: -711.9 MB). Peak memory consumption was 938.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (14068states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14059 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 229.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 224.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2560 SDtfs, 14609 SDslu, 2184 SDs, 0 SdLazy, 22508 SolverSat, 5722 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 193.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 260 GetRequests, 228 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14068occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9976921190851785 AbsIntWeakeningRatio, 0.1210762331838565 AbsIntAvgWeakeningVarsNumRemoved, 16.430493273542602 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 271 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 749 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 744 ConstructedInterpolants, 0 QuantifiedInterpolants, 418155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 275/342 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown