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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:48:02,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:48:02,538 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:48:02,552 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:48:02,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:48:02,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:48:02,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:48:02,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:48:02,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:48:02,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:48:02,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:48:02,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:48:02,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:48:02,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:48:02,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:48:02,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:48:02,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:48:02,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:48:02,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:48:02,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:48:02,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:48:02,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:48:02,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:48:02,584 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:48:02,584 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:48:02,586 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:48:02,586 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:48:02,587 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:48:02,604 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:48:02,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:48:02,606 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:48:02,606 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:48:02,607 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:48:02,607 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:48:02,607 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:48:02,607 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:48:02,607 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:48:02,608 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:48:02,608 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:48:02,608 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:48:02,609 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:48:02,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:48:02,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:48:02,610 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:48:02,610 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:48:02,610 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:48:02,610 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:48:02,610 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:48:02,611 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:48:02,611 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:48:02,611 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:48:02,611 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:48:02,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:48:02,612 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:48:02,612 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:48:02,612 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:48:02,612 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:48:02,613 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:48:02,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:48:02,613 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:48:02,613 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:48:02,613 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:48:02,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:48:02,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:48:02,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:48:02,699 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:48:02,700 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:48:02,701 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c [2018-10-24 19:48:02,762 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/703e3ee70/1dea5525c1aa49809eddd47313150185/FLAGa4244a761 [2018-10-24 19:48:03,480 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:48:03,482 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label53_true-unreach-call.c [2018-10-24 19:48:03,513 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/703e3ee70/1dea5525c1aa49809eddd47313150185/FLAGa4244a761 [2018-10-24 19:48:03,539 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/703e3ee70/1dea5525c1aa49809eddd47313150185 [2018-10-24 19:48:03,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:48:03,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:48:03,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:48:03,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:48:03,560 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:48:03,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:48:03" (1/1) ... [2018-10-24 19:48:03,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286f3120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:03, skipping insertion in model container [2018-10-24 19:48:03,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:48:03" (1/1) ... [2018-10-24 19:48:03,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:48:03,695 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:48:04,551 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:48:04,559 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:48:04,923 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:48:04,954 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:48:04,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04 WrapperNode [2018-10-24 19:48:04,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:48:04,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:48:04,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:48:04,958 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:48:04,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:48:05,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:48:05,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:48:05,343 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:48:05,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (1/1) ... [2018-10-24 19:48:05,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:48:05,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:48:05,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:48:05,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:48:05,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (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 [2018-10-24 19:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:48:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:48:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:48:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:48:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:48:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:48:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:48:10,952 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:48:10,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:48:10 BoogieIcfgContainer [2018-10-24 19:48:10,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:48:10,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:48:10,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:48:10,960 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:48:10,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:48:03" (1/3) ... [2018-10-24 19:48:10,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d7f95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:48:10, skipping insertion in model container [2018-10-24 19:48:10,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:48:04" (2/3) ... [2018-10-24 19:48:10,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d7f95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:48:10, skipping insertion in model container [2018-10-24 19:48:10,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:48:10" (3/3) ... [2018-10-24 19:48:10,966 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label53_true-unreach-call.c [2018-10-24 19:48:10,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:48:10,992 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:48:11,013 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:48:11,069 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:48:11,069 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:48:11,069 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:48:11,070 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:48:11,070 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:48:11,070 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:48:11,070 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:48:11,070 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:48:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 19:48:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 19:48:11,153 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:11,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:11,165 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:11,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:11,175 INFO L82 PathProgramCache]: Analyzing trace with hash 390618596, now seen corresponding path program 1 times [2018-10-24 19:48:11,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:11,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:11,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:11,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:11,263 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:12,288 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-10-24 19:48:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:12,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:12,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:48:12,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:12,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:48:12,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:48:12,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:48:12,624 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-24 19:48:15,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:15,672 INFO L93 Difference]: Finished difference Result 1066 states and 1924 transitions. [2018-10-24 19:48:15,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:48:15,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2018-10-24 19:48:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:15,702 INFO L225 Difference]: With dead ends: 1066 [2018-10-24 19:48:15,703 INFO L226 Difference]: Without dead ends: 748 [2018-10-24 19:48:15,711 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:48:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-10-24 19:48:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 527. [2018-10-24 19:48:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-10-24 19:48:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 902 transitions. [2018-10-24 19:48:15,817 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 902 transitions. Word has length 201 [2018-10-24 19:48:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:15,822 INFO L481 AbstractCegarLoop]: Abstraction has 527 states and 902 transitions. [2018-10-24 19:48:15,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:48:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 902 transitions. [2018-10-24 19:48:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 19:48:15,842 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:15,842 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:15,845 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:15,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:15,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1605931427, now seen corresponding path program 1 times [2018-10-24 19:48:15,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:15,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:15,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:15,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:15,847 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:16,231 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:48:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:16,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:16,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:48:16,406 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:16,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:48:16,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:48:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:48:16,409 INFO L87 Difference]: Start difference. First operand 527 states and 902 transitions. Second operand 6 states. [2018-10-24 19:48:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:19,816 INFO L93 Difference]: Finished difference Result 1590 states and 2793 transitions. [2018-10-24 19:48:19,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:48:19,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2018-10-24 19:48:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:19,839 INFO L225 Difference]: With dead ends: 1590 [2018-10-24 19:48:19,839 INFO L226 Difference]: Without dead ends: 1069 [2018-10-24 19:48:19,843 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 [2018-10-24 19:48:19,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-10-24 19:48:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1024. [2018-10-24 19:48:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-10-24 19:48:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1746 transitions. [2018-10-24 19:48:19,926 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1746 transitions. Word has length 211 [2018-10-24 19:48:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:19,926 INFO L481 AbstractCegarLoop]: Abstraction has 1024 states and 1746 transitions. [2018-10-24 19:48:19,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:48:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1746 transitions. [2018-10-24 19:48:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 19:48:19,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:19,935 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:19,935 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:19,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1477255851, now seen corresponding path program 1 times [2018-10-24 19:48:19,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:19,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:19,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:19,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:19,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:20,220 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:48:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:20,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:20,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:48:20,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:20,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:48:20,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:48:20,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:48:20,315 INFO L87 Difference]: Start difference. First operand 1024 states and 1746 transitions. Second operand 5 states. [2018-10-24 19:48:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:23,774 INFO L93 Difference]: Finished difference Result 3166 states and 5674 transitions. [2018-10-24 19:48:23,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:48:23,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-10-24 19:48:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:23,800 INFO L225 Difference]: With dead ends: 3166 [2018-10-24 19:48:23,801 INFO L226 Difference]: Without dead ends: 2148 [2018-10-24 19:48:23,810 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:48:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2018-10-24 19:48:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2105. [2018-10-24 19:48:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2018-10-24 19:48:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 3422 transitions. [2018-10-24 19:48:23,933 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 3422 transitions. Word has length 212 [2018-10-24 19:48:23,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:23,933 INFO L481 AbstractCegarLoop]: Abstraction has 2105 states and 3422 transitions. [2018-10-24 19:48:23,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:48:23,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 3422 transitions. [2018-10-24 19:48:23,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-24 19:48:23,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:23,948 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:23,949 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:23,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:23,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1229236448, now seen corresponding path program 1 times [2018-10-24 19:48:23,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:23,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:23,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:23,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:23,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:24,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:24,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:48:24,331 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:24,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:48:24,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:48:24,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:48:24,334 INFO L87 Difference]: Start difference. First operand 2105 states and 3422 transitions. Second operand 3 states. [2018-10-24 19:48:26,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:26,437 INFO L93 Difference]: Finished difference Result 6108 states and 10330 transitions. [2018-10-24 19:48:26,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:48:26,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-10-24 19:48:26,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:26,468 INFO L225 Difference]: With dead ends: 6108 [2018-10-24 19:48:26,469 INFO L226 Difference]: Without dead ends: 4009 [2018-10-24 19:48:26,482 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:48:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2018-10-24 19:48:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3973. [2018-10-24 19:48:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3973 states. [2018-10-24 19:48:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 6514 transitions. [2018-10-24 19:48:26,617 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 6514 transitions. Word has length 214 [2018-10-24 19:48:26,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:26,617 INFO L481 AbstractCegarLoop]: Abstraction has 3973 states and 6514 transitions. [2018-10-24 19:48:26,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:48:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 6514 transitions. [2018-10-24 19:48:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-24 19:48:26,636 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:26,637 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:26,637 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:26,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:26,638 INFO L82 PathProgramCache]: Analyzing trace with hash -565100084, now seen corresponding path program 1 times [2018-10-24 19:48:26,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:26,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:26,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:26,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:26,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:26,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:26,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 19:48:26,923 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:26,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 19:48:26,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 19:48:26,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 19:48:26,924 INFO L87 Difference]: Start difference. First operand 3973 states and 6514 transitions. Second operand 7 states. [2018-10-24 19:48:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:28,977 INFO L93 Difference]: Finished difference Result 12096 states and 22014 transitions. [2018-10-24 19:48:28,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:48:28,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2018-10-24 19:48:28,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:29,062 INFO L225 Difference]: With dead ends: 12096 [2018-10-24 19:48:29,063 INFO L226 Difference]: Without dead ends: 8129 [2018-10-24 19:48:29,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:48:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2018-10-24 19:48:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 7942. [2018-10-24 19:48:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7942 states. [2018-10-24 19:48:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7942 states to 7942 states and 13503 transitions. [2018-10-24 19:48:29,434 INFO L78 Accepts]: Start accepts. Automaton has 7942 states and 13503 transitions. Word has length 220 [2018-10-24 19:48:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:29,434 INFO L481 AbstractCegarLoop]: Abstraction has 7942 states and 13503 transitions. [2018-10-24 19:48:29,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 19:48:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7942 states and 13503 transitions. [2018-10-24 19:48:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-24 19:48:29,471 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:29,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:29,472 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:29,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash -314712711, now seen corresponding path program 1 times [2018-10-24 19:48:29,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:29,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:29,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:29,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:29,475 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:29,739 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:48:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:30,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:30,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:48:30,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:30,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:48:30,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:48:30,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:48:30,158 INFO L87 Difference]: Start difference. First operand 7942 states and 13503 transitions. Second operand 6 states. [2018-10-24 19:48:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:33,122 INFO L93 Difference]: Finished difference Result 22960 states and 42530 transitions. [2018-10-24 19:48:33,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:48:33,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-10-24 19:48:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:33,245 INFO L225 Difference]: With dead ends: 22960 [2018-10-24 19:48:33,245 INFO L226 Difference]: Without dead ends: 15024 [2018-10-24 19:48:33,286 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:48:33,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15024 states. [2018-10-24 19:48:33,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15024 to 14866. [2018-10-24 19:48:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14866 states. [2018-10-24 19:48:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14866 states to 14866 states and 24364 transitions. [2018-10-24 19:48:33,835 INFO L78 Accepts]: Start accepts. Automaton has 14866 states and 24364 transitions. Word has length 225 [2018-10-24 19:48:33,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:33,836 INFO L481 AbstractCegarLoop]: Abstraction has 14866 states and 24364 transitions. [2018-10-24 19:48:33,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:48:33,836 INFO L276 IsEmpty]: Start isEmpty. Operand 14866 states and 24364 transitions. [2018-10-24 19:48:33,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-10-24 19:48:33,900 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:33,901 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:33,901 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:33,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:33,902 INFO L82 PathProgramCache]: Analyzing trace with hash 732116718, now seen corresponding path program 1 times [2018-10-24 19:48:33,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:33,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:33,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:33,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:33,907 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:34,596 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-24 19:48:34,880 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 19:48:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 19:48:35,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:48:35,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:48:35,407 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:48:35,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:48:35,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:48:35,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:48:35,408 INFO L87 Difference]: Start difference. First operand 14866 states and 24364 transitions. Second operand 6 states. [2018-10-24 19:48:40,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:48:40,666 INFO L93 Difference]: Finished difference Result 31818 states and 52440 transitions. [2018-10-24 19:48:40,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 19:48:40,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 249 [2018-10-24 19:48:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:48:40,754 INFO L225 Difference]: With dead ends: 31818 [2018-10-24 19:48:40,754 INFO L226 Difference]: Without dead ends: 16918 [2018-10-24 19:48:40,812 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:48:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2018-10-24 19:48:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 16916. [2018-10-24 19:48:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16916 states. [2018-10-24 19:48:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16916 states to 16916 states and 26691 transitions. [2018-10-24 19:48:41,286 INFO L78 Accepts]: Start accepts. Automaton has 16916 states and 26691 transitions. Word has length 249 [2018-10-24 19:48:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:48:41,287 INFO L481 AbstractCegarLoop]: Abstraction has 16916 states and 26691 transitions. [2018-10-24 19:48:41,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:48:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 16916 states and 26691 transitions. [2018-10-24 19:48:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-10-24 19:48:41,380 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:48:41,381 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:48:41,381 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:48:41,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:48:41,382 INFO L82 PathProgramCache]: Analyzing trace with hash 646437938, now seen corresponding path program 1 times [2018-10-24 19:48:41,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:48:41,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:41,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:48:41,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:48:41,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:48:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:48:42,258 WARN L179 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 11 [2018-10-24 19:48:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:48:42,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:48:42,779 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:48:42,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-10-24 19:48:42,784 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [334], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1069], [1071], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 19:48:42,920 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:48:42,920 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 19:52:28,853 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 19:52:28,855 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 19:52:28,856 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 19:52:28,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:52:28,856 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:52:28,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:52:28,868 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 19:52:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:52:29,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 19:52:29,112 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 19:52:29,314 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:52:29,314 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:52:29,319 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:52:29,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:52:29 BoogieIcfgContainer [2018-10-24 19:52:29,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:52:29,320 INFO L168 Benchmark]: Toolchain (without parser) took 265766.31 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -195.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,321 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-10-24 19:52:29,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1400.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 385.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.2 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,323 INFO L168 Benchmark]: Boogie Preprocessor took 148.05 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,324 INFO L168 Benchmark]: RCFGBuilder took 5462.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 251.8 MB). Peak memory consumption was 251.8 MB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,325 INFO L168 Benchmark]: TraceAbstraction took 258364.20 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 787.5 MB). Free memory was 1.9 GB in the beginning and 1.6 GB in the end (delta: 317.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:52:29,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1400.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 385.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -863.2 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.05 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5462.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 251.8 MB). Peak memory consumption was 251.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 258364.20 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 787.5 MB). Free memory was 1.9 GB in the beginning and 1.6 GB in the end (delta: 317.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1617]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1617). Cancelled while BasicCegarLoop was analyzing trace of length 281 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 258.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 22.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1140 SDtfs, 6090 SDslu, 1205 SDs, 0 SdLazy, 9083 SolverSat, 1536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16916occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 226.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 692 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1532 NumberOfCodeBlocks, 1532 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1525 ConstructedInterpolants, 0 QuantifiedInterpolants, 1808365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 114/114 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown