java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem16_label03_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 06:35:34,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 06:35:34,505 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 06:35:34,520 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 06:35:34,520 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 06:35:34,521 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 06:35:34,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 06:35:34,524 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 06:35:34,526 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 06:35:34,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 06:35:34,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 06:35:34,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 06:35:34,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 06:35:34,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 06:35:34,532 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 06:35:34,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 06:35:34,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 06:35:34,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 06:35:34,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 06:35:34,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 06:35:34,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 06:35:34,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 06:35:34,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 06:35:34,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 06:35:34,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 06:35:34,551 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 06:35:34,552 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 06:35:34,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 06:35:34,557 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 06:35:34,558 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 06:35:34,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 06:35:34,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 06:35:34,561 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 06:35:34,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 06:35:34,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 06:35:34,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 06:35:34,563 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 06:35:34,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 06:35:34,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 06:35:34,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 06:35:34,584 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 06:35:34,585 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 06:35:34,585 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 06:35:34,585 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 06:35:34,585 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 06:35:34,585 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 06:35:34,586 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 06:35:34,586 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 06:35:34,586 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 06:35:34,586 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 06:35:34,586 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 06:35:34,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 06:35:34,587 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 06:35:34,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 06:35:34,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 06:35:34,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 06:35:34,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 06:35:34,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 06:35:34,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 06:35:34,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 06:35:34,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 06:35:34,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 06:35:34,590 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 06:35:34,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 06:35:34,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 06:35:34,591 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 06:35:34,591 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 06:35:34,591 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 06:35:34,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 06:35:34,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 06:35:34,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 06:35:34,672 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 06:35:34,672 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 06:35:34,673 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label03_false-unreach-call.c [2018-11-07 06:35:34,739 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4194f545e/8f776ff4e3154c41a368a29a84a999d6/FLAGce0922881 [2018-11-07 06:35:35,382 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 06:35:35,383 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label03_false-unreach-call.c [2018-11-07 06:35:35,404 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4194f545e/8f776ff4e3154c41a368a29a84a999d6/FLAGce0922881 [2018-11-07 06:35:35,426 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4194f545e/8f776ff4e3154c41a368a29a84a999d6 [2018-11-07 06:35:35,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 06:35:35,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 06:35:35,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 06:35:35,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 06:35:35,446 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 06:35:35,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:35" (1/1) ... [2018-11-07 06:35:35,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7055bff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:35, skipping insertion in model container [2018-11-07 06:35:35,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:35" (1/1) ... [2018-11-07 06:35:35,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 06:35:35,543 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 06:35:36,251 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:35:36,256 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 06:35:36,529 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:35:36,553 INFO L193 MainTranslator]: Completed translation [2018-11-07 06:35:36,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36 WrapperNode [2018-11-07 06:35:36,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 06:35:36,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 06:35:36,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 06:35:36,555 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 06:35:36,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 06:35:36,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 06:35:36,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 06:35:36,769 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 06:35:36,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... [2018-11-07 06:35:36,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 06:35:36,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 06:35:36,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 06:35:36,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 06:35:36,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 06:35:36,978 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 06:35:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 06:35:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 06:35:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 06:35:36,979 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 06:35:36,979 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 06:35:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 06:35:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 06:35:36,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 06:35:36,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 06:35:36,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 06:35:42,387 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 06:35:42,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:42 BoogieIcfgContainer [2018-11-07 06:35:42,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 06:35:42,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 06:35:42,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 06:35:42,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 06:35:42,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:35" (1/3) ... [2018-11-07 06:35:42,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ea157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:42, skipping insertion in model container [2018-11-07 06:35:42,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:36" (2/3) ... [2018-11-07 06:35:42,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ea157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:42, skipping insertion in model container [2018-11-07 06:35:42,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:42" (3/3) ... [2018-11-07 06:35:42,398 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label03_false-unreach-call.c [2018-11-07 06:35:42,409 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 06:35:42,419 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 06:35:42,438 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 06:35:42,480 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 06:35:42,480 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 06:35:42,480 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 06:35:42,480 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 06:35:42,481 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 06:35:42,481 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 06:35:42,481 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 06:35:42,481 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 06:35:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 06:35:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 06:35:42,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:35:42,524 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:35:42,526 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:35:42,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:35:42,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2114670117, now seen corresponding path program 1 times [2018-11-07 06:35:42,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:35:42,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:42,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:35:42,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:42,584 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:35:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:35:42,920 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:35:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:35:43,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:35:43,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 06:35:43,014 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:35:43,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:35:43,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:35:43,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 06:35:43,040 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 06:35:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:35:46,413 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 06:35:46,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:35:46,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-07 06:35:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:35:46,439 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 06:35:46,439 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 06:35:46,449 INFO L604 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 [2018-11-07 06:35:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 06:35:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 06:35:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 06:35:46,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1343 transitions. [2018-11-07 06:35:46,555 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1343 transitions. Word has length 13 [2018-11-07 06:35:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:35:46,556 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1343 transitions. [2018-11-07 06:35:46,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:35:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1343 transitions. [2018-11-07 06:35:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-07 06:35:46,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:35:46,561 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] [2018-11-07 06:35:46,562 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:35:46,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:35:46,562 INFO L82 PathProgramCache]: Analyzing trace with hash -631689799, now seen corresponding path program 1 times [2018-11-07 06:35:46,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:35:46,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:46,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:35:46,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:46,564 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:35:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:35:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:35:46,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:35:46,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 06:35:46,917 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:35:46,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:35:46,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:35:46,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:35:46,920 INFO L87 Difference]: Start difference. First operand 744 states and 1343 transitions. Second operand 6 states. [2018-11-07 06:35:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:35:54,040 INFO L93 Difference]: Finished difference Result 2846 states and 5292 transitions. [2018-11-07 06:35:54,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:35:54,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-11-07 06:35:54,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:35:54,069 INFO L225 Difference]: With dead ends: 2846 [2018-11-07 06:35:54,069 INFO L226 Difference]: Without dead ends: 2108 [2018-11-07 06:35:54,077 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:35:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2018-11-07 06:35:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2090. [2018-11-07 06:35:54,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-07 06:35:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3323 transitions. [2018-11-07 06:35:54,185 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3323 transitions. Word has length 86 [2018-11-07 06:35:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:35:54,186 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3323 transitions. [2018-11-07 06:35:54,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:35:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3323 transitions. [2018-11-07 06:35:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-11-07 06:35:54,196 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:35:54,196 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] [2018-11-07 06:35:54,196 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:35:54,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:35:54,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1047339596, now seen corresponding path program 1 times [2018-11-07 06:35:54,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:35:54,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:54,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:35:54,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:54,199 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:35:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:35:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:35:54,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:35:54,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 06:35:54,504 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:35:54,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:35:54,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:35:54,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:35:54,505 INFO L87 Difference]: Start difference. First operand 2090 states and 3323 transitions. Second operand 6 states. [2018-11-07 06:35:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:35:59,192 INFO L93 Difference]: Finished difference Result 5549 states and 9209 transitions. [2018-11-07 06:35:59,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:35:59,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-11-07 06:35:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:35:59,225 INFO L225 Difference]: With dead ends: 5549 [2018-11-07 06:35:59,226 INFO L226 Difference]: Without dead ends: 3465 [2018-11-07 06:35:59,240 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:35:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2018-11-07 06:35:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3433. [2018-11-07 06:35:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2018-11-07 06:35:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5124 transitions. [2018-11-07 06:35:59,346 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5124 transitions. Word has length 115 [2018-11-07 06:35:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:35:59,346 INFO L480 AbstractCegarLoop]: Abstraction has 3433 states and 5124 transitions. [2018-11-07 06:35:59,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:35:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5124 transitions. [2018-11-07 06:35:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-07 06:35:59,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:35:59,361 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] [2018-11-07 06:35:59,361 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:35:59,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:35:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash -306297911, now seen corresponding path program 1 times [2018-11-07 06:35:59,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:35:59,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:59,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:35:59,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:35:59,363 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:35:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:35:59,672 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:35:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:35:59,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:35:59,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 06:35:59,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:35:59,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:35:59,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:35:59,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:35:59,819 INFO L87 Difference]: Start difference. First operand 3433 states and 5124 transitions. Second operand 6 states. [2018-11-07 06:36:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:36:03,899 INFO L93 Difference]: Finished difference Result 8911 states and 13439 transitions. [2018-11-07 06:36:03,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:36:03,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-11-07 06:36:03,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:36:03,937 INFO L225 Difference]: With dead ends: 8911 [2018-11-07 06:36:03,937 INFO L226 Difference]: Without dead ends: 5484 [2018-11-07 06:36:03,957 INFO L604 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 [2018-11-07 06:36:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5484 states. [2018-11-07 06:36:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5484 to 5455. [2018-11-07 06:36:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5455 states. [2018-11-07 06:36:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 7720 transitions. [2018-11-07 06:36:04,105 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 7720 transitions. Word has length 158 [2018-11-07 06:36:04,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:36:04,106 INFO L480 AbstractCegarLoop]: Abstraction has 5455 states and 7720 transitions. [2018-11-07 06:36:04,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:36:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 7720 transitions. [2018-11-07 06:36:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-11-07 06:36:04,112 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:36:04,113 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 06:36:04,113 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:36:04,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:36:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1241846344, now seen corresponding path program 1 times [2018-11-07 06:36:04,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:36:04,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:36:04,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:36:04,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:36:04,116 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:36:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:36:04,475 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:36:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:36:04,523 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:36:04,523 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:36:04,524 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-11-07 06:36:04,527 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 06:36:04,578 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:36:04,578 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:36:05,268 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:36:05,270 INFO L272 AbstractInterpreter]: Visited 150 different actions 150 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 06:36:05,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:36:05,312 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:36:05,742 INFO L227 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 77.21% of their original sizes. [2018-11-07 06:36:05,742 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:36:05,866 INFO L415 sIntCurrentIteration]: We unified 227 AI predicates to 227 [2018-11-07 06:36:05,866 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:36:05,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:36:05,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 06:36:05,868 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:36:05,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:36:05,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:36:05,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:36:05,869 INFO L87 Difference]: Start difference. First operand 5455 states and 7720 transitions. Second operand 6 states. [2018-11-07 06:36:47,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:36:47,033 INFO L93 Difference]: Finished difference Result 11244 states and 15945 transitions. [2018-11-07 06:36:47,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 06:36:47,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2018-11-07 06:36:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:36:47,059 INFO L225 Difference]: With dead ends: 11244 [2018-11-07 06:36:47,059 INFO L226 Difference]: Without dead ends: 5795 [2018-11-07 06:36:47,073 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 228 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 06:36:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2018-11-07 06:36:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5793. [2018-11-07 06:36:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5793 states. [2018-11-07 06:36:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5793 states to 5793 states and 8066 transitions. [2018-11-07 06:36:47,212 INFO L78 Accepts]: Start accepts. Automaton has 5793 states and 8066 transitions. Word has length 228 [2018-11-07 06:36:47,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:36:47,213 INFO L480 AbstractCegarLoop]: Abstraction has 5793 states and 8066 transitions. [2018-11-07 06:36:47,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:36:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5793 states and 8066 transitions. [2018-11-07 06:36:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 06:36:47,218 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:36:47,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:36:47,218 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:36:47,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:36:47,219 INFO L82 PathProgramCache]: Analyzing trace with hash -524091392, now seen corresponding path program 1 times [2018-11-07 06:36:47,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:36:47,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:36:47,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:36:47,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:36:47,221 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:36:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:36:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 06:36:47,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:36:47,561 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:36:47,562 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-11-07 06:36:47,563 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 06:36:47,579 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:36:47,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:36:47,895 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:36:47,896 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 06:36:47,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:36:47,927 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:36:48,198 INFO L227 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 77.2% of their original sizes. [2018-11-07 06:36:48,198 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:36:48,414 INFO L415 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2018-11-07 06:36:48,414 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:36:48,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:36:48,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-07 06:36:48,415 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:36:48,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 06:36:48,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 06:36:48,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 06:36:48,416 INFO L87 Difference]: Start difference. First operand 5793 states and 8066 transitions. Second operand 10 states. [2018-11-07 06:39:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:39:12,945 INFO L93 Difference]: Finished difference Result 11585 states and 16324 transitions. [2018-11-07 06:39:12,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 06:39:12,945 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 253 [2018-11-07 06:39:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:39:12,970 INFO L225 Difference]: With dead ends: 11585 [2018-11-07 06:39:12,970 INFO L226 Difference]: Without dead ends: 6136 [2018-11-07 06:39:12,986 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:39:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2018-11-07 06:39:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 6133. [2018-11-07 06:39:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6133 states. [2018-11-07 06:39:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 8421 transitions. [2018-11-07 06:39:13,118 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 8421 transitions. Word has length 253 [2018-11-07 06:39:13,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:39:13,119 INFO L480 AbstractCegarLoop]: Abstraction has 6133 states and 8421 transitions. [2018-11-07 06:39:13,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 06:39:13,119 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 8421 transitions. [2018-11-07 06:39:13,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-11-07 06:39:13,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:39:13,127 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:39:13,128 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:39:13,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:39:13,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1209965915, now seen corresponding path program 1 times [2018-11-07 06:39:13,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:39:13,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:39:13,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:39:13,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:39:13,129 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:39:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:39:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 91 proven. 69 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-07 06:39:13,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:39:13,539 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:39:13,540 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 321 with the following transitions: [2018-11-07 06:39:13,540 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [183], [185], [188], [196], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [972], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 06:39:13,546 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:39:13,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:39:13,837 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:39:13,838 INFO L272 AbstractInterpreter]: Visited 154 different actions 449 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 06:39:13,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:39:13,880 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:39:14,216 INFO L227 lantSequenceWeakener]: Weakened 317 states. On average, predicates are now at 79.92% of their original sizes. [2018-11-07 06:39:14,216 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:39:14,330 INFO L415 sIntCurrentIteration]: We unified 319 AI predicates to 319 [2018-11-07 06:39:14,330 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:39:14,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:39:14,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 06:39:14,331 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:39:14,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 06:39:14,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 06:39:14,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 06:39:14,332 INFO L87 Difference]: Start difference. First operand 6133 states and 8421 transitions. Second operand 10 states. Received shutdown request... [2018-11-07 06:39:42,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 06:39:42,235 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 06:39:42,240 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 06:39:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:39:42 BoogieIcfgContainer [2018-11-07 06:39:42,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 06:39:42,242 INFO L168 Benchmark]: Toolchain (without parser) took 246802.31 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 369.2 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-07 06:39:42,243 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 06:39:42,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1112.68 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. [2018-11-07 06:39:42,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 213.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 06:39:42,247 INFO L168 Benchmark]: Boogie Preprocessor took 139.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 06:39:42,247 INFO L168 Benchmark]: RCFGBuilder took 5479.18 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: 263.3 MB). Peak memory consumption was 263.3 MB. Max. memory is 7.1 GB. [2018-11-07 06:39:42,248 INFO L168 Benchmark]: TraceAbstraction took 239851.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.1 GB in the end (delta: 891.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-07 06:39:42,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1112.68 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 213.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5479.18 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: 263.3 MB). Peak memory consumption was 263.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239851.79 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.1 GB in the end (delta: 891.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was constructing difference of abstraction (6133states) and FLOYD_HOARE automaton (currently 19 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (5940 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 239.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 233.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1380 SDtfs, 11093 SDslu, 1146 SDs, 0 SdLazy, 14036 SolverSat, 4469 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 200.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 852 GetRequests, 786 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6133occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9973878498439332 AbsIntWeakeningRatio, 0.09774436090225563 AbsIntAvgWeakeningVarsNumRemoved, 15.87218045112782 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 84 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1173 NumberOfCodeBlocks, 1173 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1166 ConstructedInterpolants, 0 QuantifiedInterpolants, 745787 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 220/356 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown