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/Problem19_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:13:27,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:13:27,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:13:27,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:13:27,968 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:13:27,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:13:27,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:13:27,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:13:27,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:13:27,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:13:27,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:13:27,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:13:27,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:13:27,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:13:27,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:13:27,992 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:13:27,993 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:13:28,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:13:28,003 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:13:28,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:13:28,011 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:13:28,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:13:28,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 02:13:28,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 02:13:28,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 02:13:28,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 02:13:28,022 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 02:13:28,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 02:13:28,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 02:13:28,026 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 02:13:28,026 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 02:13:28,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 02:13:28,029 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 [2018-10-25 02:13:28,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:13:28,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:13:28,045 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:13:28,045 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:13:28,046 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:13:28,046 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:13:28,046 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:13:28,046 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:13:28,046 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:13:28,047 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:13:28,047 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:13:28,047 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:13:28,047 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:13:28,047 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:13:28,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:13:28,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:13:28,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:13:28,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:13:28,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:13:28,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:13:28,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:13:28,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:13:28,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:13:28,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:13:28,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:13:28,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:13:28,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:13:28,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:13:28,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:13:28,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:13:28,051 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:13:28,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:13:28,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:13:28,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:13:28,052 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:13:28,052 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:13:28,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:13:28,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:13:28,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:13:28,127 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:13:28,127 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:13:28,128 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-10-25 02:13:28,180 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f590a4fe2/bab2056214cc448e9b275838f69d7c8f/FLAGd35ca5b03 [2018-10-25 02:13:29,084 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:13:29,086 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-10-25 02:13:29,130 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f590a4fe2/bab2056214cc448e9b275838f69d7c8f/FLAGd35ca5b03 [2018-10-25 02:13:29,145 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f590a4fe2/bab2056214cc448e9b275838f69d7c8f [2018-10-25 02:13:29,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:13:29,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:13:29,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:13:29,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:13:29,166 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:13:29,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:13:29" (1/1) ... [2018-10-25 02:13:29,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:29, skipping insertion in model container [2018-10-25 02:13:29,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:13:29" (1/1) ... [2018-10-25 02:13:29,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:13:29,433 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:13:31,380 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:13:31,384 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:13:32,577 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:13:32,627 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:13:32,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32 WrapperNode [2018-10-25 02:13:32,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:13:32,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:13:32,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:13:32,630 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:13:32,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:32,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:13:33,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:13:33,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:13:33,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:13:33,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (1/1) ... [2018-10-25 02:13:33,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:13:33,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:13:33,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:13:33,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:13:33,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (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 [2018-10-25 02:13:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:13:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:13:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-25 02:13:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-25 02:13:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-25 02:13:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-25 02:13:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 02:13:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 02:13:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:13:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:13:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:13:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:13:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:13:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:13:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:13:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:13:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:13:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:13:51,403 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:13:51,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:13:51 BoogieIcfgContainer [2018-10-25 02:13:51,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:13:51,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:13:51,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:13:51,409 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:13:51,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:13:29" (1/3) ... [2018-10-25 02:13:51,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fa4a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:13:51, skipping insertion in model container [2018-10-25 02:13:51,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:13:32" (2/3) ... [2018-10-25 02:13:51,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fa4a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:13:51, skipping insertion in model container [2018-10-25 02:13:51,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:13:51" (3/3) ... [2018-10-25 02:13:51,413 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label39_true-unreach-call.c [2018-10-25 02:13:51,423 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:13:51,434 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:13:51,452 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:13:51,503 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:13:51,503 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:13:51,503 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:13:51,503 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:13:51,503 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:13:51,504 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:13:51,504 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:13:51,504 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:13:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-25 02:13:51,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-25 02:13:51,569 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:13:51,570 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] [2018-10-25 02:13:51,572 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:13:51,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:13:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1284410716, now seen corresponding path program 1 times [2018-10-25 02:13:51,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:13:51,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:51,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:13:51,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:51,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:13:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:13:52,031 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:13:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:13:52,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:13:52,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 02:13:52,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:13:52,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 02:13:52,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 02:13:52,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:13:52,187 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-25 02:14:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:07,470 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-10-25 02:14:07,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:14:07,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-10-25 02:14:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:07,515 INFO L225 Difference]: With dead ends: 4998 [2018-10-25 02:14:07,515 INFO L226 Difference]: Without dead ends: 3218 [2018-10-25 02:14:07,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:14:07,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-10-25 02:14:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-10-25 02:14:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-25 02:14:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-10-25 02:14:07,759 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 38 [2018-10-25 02:14:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:07,760 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-10-25 02:14:07,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 02:14:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-10-25 02:14:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-25 02:14:07,772 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:07,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:14:07,774 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:07,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:07,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1473327961, now seen corresponding path program 1 times [2018-10-25 02:14:07,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:07,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:07,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:07,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:07,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:08,151 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:14:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:08,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:08,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:14:08,532 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:08,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:08,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:08,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:08,535 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-10-25 02:14:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:37,604 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-10-25 02:14:37,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:14:37,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-10-25 02:14:37,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:37,640 INFO L225 Difference]: With dead ends: 9340 [2018-10-25 02:14:37,640 INFO L226 Difference]: Without dead ends: 6131 [2018-10-25 02:14:37,651 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:14:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-10-25 02:14:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-10-25 02:14:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-10-25 02:14:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-10-25 02:14:37,799 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 110 [2018-10-25 02:14:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:37,800 INFO L481 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-10-25 02:14:37,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:14:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-10-25 02:14:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-25 02:14:37,804 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:37,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:14:37,804 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:37,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash 887803694, now seen corresponding path program 1 times [2018-10-25 02:14:37,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:37,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:37,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:37,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:37,806 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:38,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:38,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:14:38,086 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:38,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:38,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:38,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:38,088 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-10-25 02:15:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:15:02,866 INFO L93 Difference]: Finished difference Result 21088 states and 34222 transitions. [2018-10-25 02:15:02,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:15:02,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-10-25 02:15:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:15:02,954 INFO L225 Difference]: With dead ends: 21088 [2018-10-25 02:15:02,954 INFO L226 Difference]: Without dead ends: 15003 [2018-10-25 02:15:02,977 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:15:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15003 states. [2018-10-25 02:15:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15003 to 14814. [2018-10-25 02:15:03,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14814 states. [2018-10-25 02:15:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14814 states to 14814 states and 22420 transitions. [2018-10-25 02:15:03,379 INFO L78 Accepts]: Start accepts. Automaton has 14814 states and 22420 transitions. Word has length 112 [2018-10-25 02:15:03,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:15:03,380 INFO L481 AbstractCegarLoop]: Abstraction has 14814 states and 22420 transitions. [2018-10-25 02:15:03,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:15:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 14814 states and 22420 transitions. [2018-10-25 02:15:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-25 02:15:03,393 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:15:03,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:15:03,394 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:15:03,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:03,394 INFO L82 PathProgramCache]: Analyzing trace with hash 235338043, now seen corresponding path program 1 times [2018-10-25 02:15:03,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:15:03,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:03,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:15:03,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:03,396 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:15:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:15:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:15:03,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:15:03,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 02:15:03,772 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:15:03,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 02:15:03,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 02:15:03,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 02:15:03,773 INFO L87 Difference]: Start difference. First operand 14814 states and 22420 transitions. Second operand 5 states. [2018-10-25 02:15:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:15:32,430 INFO L93 Difference]: Finished difference Result 45421 states and 70728 transitions. [2018-10-25 02:15:32,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:15:32,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-10-25 02:15:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:15:32,543 INFO L225 Difference]: With dead ends: 45421 [2018-10-25 02:15:32,544 INFO L226 Difference]: Without dead ends: 30613 [2018-10-25 02:15:32,589 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:15:32,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2018-10-25 02:15:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 30143. [2018-10-25 02:15:33,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30143 states. [2018-10-25 02:15:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30143 states to 30143 states and 41642 transitions. [2018-10-25 02:15:33,322 INFO L78 Accepts]: Start accepts. Automaton has 30143 states and 41642 transitions. Word has length 143 [2018-10-25 02:15:33,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:15:33,323 INFO L481 AbstractCegarLoop]: Abstraction has 30143 states and 41642 transitions. [2018-10-25 02:15:33,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 02:15:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 30143 states and 41642 transitions. [2018-10-25 02:15:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-25 02:15:33,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:15:33,332 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, 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] [2018-10-25 02:15:33,333 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:15:33,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash -151637188, now seen corresponding path program 1 times [2018-10-25 02:15:33,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:15:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:15:33,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:33,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:15:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:15:33,659 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:15:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 62 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 02:15:34,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:15:34,064 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:15:34,065 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-25 02:15:34,067 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5430], [5432], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-25 02:15:34,147 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:15:34,147 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:15:34,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 02:15:34,703 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 02:15:34,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:34,738 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 02:15:35,322 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 75.38% of their original sizes. [2018-10-25 02:15:35,323 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 02:15:35,538 INFO L413 sIntCurrentIteration]: We have 208 unified AI predicates [2018-10-25 02:15:35,538 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 02:15:35,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:15:35,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 02:15:35,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:15:35,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:15:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:15:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:15:35,541 INFO L87 Difference]: Start difference. First operand 30143 states and 41642 transitions. Second operand 6 states. Received shutdown request... [2018-10-25 02:17:25,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 02:17:25,676 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 02:17:25,682 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 02:17:25,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:17:25 BoogieIcfgContainer [2018-10-25 02:17:25,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 02:17:25,683 INFO L168 Benchmark]: Toolchain (without parser) took 236524.37 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 717.4 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,684 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-25 02:17:25,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3467.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 772.70 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,687 INFO L168 Benchmark]: Boogie Preprocessor took 470.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,688 INFO L168 Benchmark]: RCFGBuilder took 17531.67 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.7 MB). Peak memory consumption was 676.6 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,689 INFO L168 Benchmark]: TraceAbstraction took 214276.53 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:17:25,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3467.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 772.70 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 869.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 470.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17531.67 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.7 MB). Peak memory consumption was 676.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214276.53 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while BasicCegarLoop was constructing difference of abstraction (30143states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (12653 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 214.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 208.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2979 SDtfs, 22235 SDslu, 3145 SDs, 0 SdLazy, 40854 SolverSat, 9548 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 177.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30143occurred 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, 0.99772600587818 AbsIntWeakeningRatio, 0.1346153846153846 AbsIntAvgWeakeningVarsNumRemoved, 17.067307692307693 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 702 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 292343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 160/225 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown