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/Problem10_label24_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 06:01:28,557 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 06:01:28,559 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 06:01:28,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 06:01:28,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 06:01:28,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 06:01:28,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 06:01:28,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 06:01:28,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 06:01:28,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 06:01:28,584 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 06:01:28,584 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 06:01:28,585 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 06:01:28,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 06:01:28,587 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 06:01:28,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 06:01:28,592 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 06:01:28,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 06:01:28,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 06:01:28,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 06:01:28,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 06:01:28,611 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 06:01:28,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 06:01:28,614 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 06:01:28,614 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 06:01:28,615 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 06:01:28,616 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 06:01:28,616 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 06:01:28,617 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 06:01:28,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 06:01:28,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 06:01:28,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 06:01:28,622 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 06:01:28,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 06:01:28,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 06:01:28,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 06:01:28,639 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 06:01:28,639 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 06:01:28,639 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 06:01:28,639 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 06:01:28,640 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 06:01:28,640 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 06:01:28,640 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 06:01:28,640 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 06:01:28,640 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 06:01:28,641 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 06:01:28,641 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 06:01:28,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 06:01:28,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 06:01:28,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 06:01:28,642 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 06:01:28,642 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 06:01:28,642 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 06:01:28,643 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 06:01:28,643 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 06:01:28,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 06:01:28,643 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 06:01:28,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 06:01:28,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 06:01:28,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 06:01:28,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 06:01:28,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 06:01:28,644 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 06:01:28,645 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 06:01:28,645 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 06:01:28,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 06:01:28,645 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 06:01:28,645 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 06:01:28,646 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 06:01:28,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 06:01:28,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 06:01:28,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 06:01:28,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 06:01:28,707 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 06:01:28,708 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-11-07 06:01:28,765 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e59445d/a51c921aac644f40912d4413fb91340c/FLAG9747547b1 [2018-11-07 06:01:29,330 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 06:01:29,331 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label24_false-unreach-call.c [2018-11-07 06:01:29,345 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e59445d/a51c921aac644f40912d4413fb91340c/FLAG9747547b1 [2018-11-07 06:01:29,368 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e59445d/a51c921aac644f40912d4413fb91340c [2018-11-07 06:01:29,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 06:01:29,382 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 06:01:29,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 06:01:29,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 06:01:29,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 06:01:29,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:01:29" (1/1) ... [2018-11-07 06:01:29,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a84e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:29, skipping insertion in model container [2018-11-07 06:01:29,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:01:29" (1/1) ... [2018-11-07 06:01:29,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 06:01:29,463 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 06:01:29,908 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:01:29,913 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 06:01:30,024 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:01:30,041 INFO L193 MainTranslator]: Completed translation [2018-11-07 06:01:30,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30 WrapperNode [2018-11-07 06:01:30,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 06:01:30,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 06:01:30,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 06:01:30,043 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 06:01:30,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 06:01:30,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 06:01:30,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 06:01:30,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 06:01:30,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (1/1) ... [2018-11-07 06:01:30,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 06:01:30,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 06:01:30,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 06:01:30,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 06:01:30,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (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 06:01:30,331 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 06:01:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 06:01:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 06:01:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 06:01:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 06:01:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 06:01:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 06:01:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 06:01:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 06:01:33,408 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 06:01:33,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:01:33 BoogieIcfgContainer [2018-11-07 06:01:33,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 06:01:33,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 06:01:33,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 06:01:33,413 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 06:01:33,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:01:29" (1/3) ... [2018-11-07 06:01:33,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd11061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:01:33, skipping insertion in model container [2018-11-07 06:01:33,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:01:30" (2/3) ... [2018-11-07 06:01:33,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd11061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:01:33, skipping insertion in model container [2018-11-07 06:01:33,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:01:33" (3/3) ... [2018-11-07 06:01:33,418 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label24_false-unreach-call.c [2018-11-07 06:01:33,429 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 06:01:33,440 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 06:01:33,459 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 06:01:33,499 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 06:01:33,499 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 06:01:33,499 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 06:01:33,499 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 06:01:33,500 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 06:01:33,500 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 06:01:33,500 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 06:01:33,500 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 06:01:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-07 06:01:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-07 06:01:33,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:01:33,546 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] [2018-11-07 06:01:33,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:01:33,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:33,555 INFO L82 PathProgramCache]: Analyzing trace with hash 823320841, now seen corresponding path program 1 times [2018-11-07 06:01:33,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:01:33,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:33,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:01:33,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:33,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:01:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:01:33,955 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:01:34,057 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 06:01:34,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:01:34,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 06:01:34,066 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:01:34,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:01:34,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:01:34,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 06:01:34,092 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-07 06:01:35,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:01:35,712 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-07 06:01:35,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:01:35,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-07 06:01:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:01:35,735 INFO L225 Difference]: With dead ends: 574 [2018-11-07 06:01:35,735 INFO L226 Difference]: Without dead ends: 356 [2018-11-07 06:01:35,743 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 06:01:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-07 06:01:35,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-07 06:01:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-07 06:01:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 592 transitions. [2018-11-07 06:01:35,841 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 592 transitions. Word has length 21 [2018-11-07 06:01:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:01:35,841 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 592 transitions. [2018-11-07 06:01:35,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:01:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 592 transitions. [2018-11-07 06:01:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-07 06:01:35,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:01:35,852 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:01:35,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:01:35,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:35,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1112402304, now seen corresponding path program 1 times [2018-11-07 06:01:35,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:01:35,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:35,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:01:35,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:35,861 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:01:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:01:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:01:36,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:01:36,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 06:01:36,287 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:01:36,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:01:36,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:01:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:01:36,290 INFO L87 Difference]: Start difference. First operand 356 states and 592 transitions. Second operand 6 states. [2018-11-07 06:01:38,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:01:38,627 INFO L93 Difference]: Finished difference Result 1002 states and 1689 transitions. [2018-11-07 06:01:38,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:01:38,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-11-07 06:01:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:01:38,634 INFO L225 Difference]: With dead ends: 1002 [2018-11-07 06:01:38,634 INFO L226 Difference]: Without dead ends: 652 [2018-11-07 06:01:38,641 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:01:38,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-11-07 06:01:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2018-11-07 06:01:38,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-11-07 06:01:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 960 transitions. [2018-11-07 06:01:38,686 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 960 transitions. Word has length 91 [2018-11-07 06:01:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:01:38,687 INFO L480 AbstractCegarLoop]: Abstraction has 640 states and 960 transitions. [2018-11-07 06:01:38,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:01:38,687 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 960 transitions. [2018-11-07 06:01:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-07 06:01:38,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:01:38,691 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:01:38,691 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:01:38,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:38,692 INFO L82 PathProgramCache]: Analyzing trace with hash -2093526668, now seen corresponding path program 1 times [2018-11-07 06:01:38,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:01:38,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:38,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:01:38,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:38,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:01:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:01:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:01:38,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:01:38,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:01:38,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:01:38,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:01:38,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:01:38,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:01:38,911 INFO L87 Difference]: Start difference. First operand 640 states and 960 transitions. Second operand 4 states. [2018-11-07 06:01:42,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:01:42,263 INFO L93 Difference]: Finished difference Result 2128 states and 3336 transitions. [2018-11-07 06:01:42,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:01:42,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-11-07 06:01:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:01:42,280 INFO L225 Difference]: With dead ends: 2128 [2018-11-07 06:01:42,280 INFO L226 Difference]: Without dead ends: 904 [2018-11-07 06:01:42,289 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:01:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-11-07 06:01:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 904. [2018-11-07 06:01:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-11-07 06:01:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1277 transitions. [2018-11-07 06:01:42,345 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1277 transitions. Word has length 101 [2018-11-07 06:01:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:01:42,346 INFO L480 AbstractCegarLoop]: Abstraction has 904 states and 1277 transitions. [2018-11-07 06:01:42,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:01:42,346 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1277 transitions. [2018-11-07 06:01:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-07 06:01:42,356 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:01:42,356 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:01:42,362 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:01:42,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:42,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1920891619, now seen corresponding path program 1 times [2018-11-07 06:01:42,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:01:42,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:42,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:01:42,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:42,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:01:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:01:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:01:42,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:01:42,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 06:01:42,601 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:01:42,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:01:42,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:01:42,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:01:42,603 INFO L87 Difference]: Start difference. First operand 904 states and 1277 transitions. Second operand 6 states. [2018-11-07 06:01:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:01:43,957 INFO L93 Difference]: Finished difference Result 2127 states and 3078 transitions. [2018-11-07 06:01:43,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:01:43,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-11-07 06:01:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:01:43,966 INFO L225 Difference]: With dead ends: 2127 [2018-11-07 06:01:43,966 INFO L226 Difference]: Without dead ends: 1229 [2018-11-07 06:01:43,970 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:01:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-11-07 06:01:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1208. [2018-11-07 06:01:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2018-11-07 06:01:44,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1646 transitions. [2018-11-07 06:01:44,024 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1646 transitions. Word has length 144 [2018-11-07 06:01:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:01:44,024 INFO L480 AbstractCegarLoop]: Abstraction has 1208 states and 1646 transitions. [2018-11-07 06:01:44,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:01:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1646 transitions. [2018-11-07 06:01:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-07 06:01:44,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:01:44,032 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:01:44,032 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:01:44,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:44,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1935153608, now seen corresponding path program 1 times [2018-11-07 06:01:44,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:01:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:44,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:01:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:01:44,035 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:01:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:01:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:01:44,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:01:44,559 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:01:44,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-07 06:01:44,562 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 06:01:44,610 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:01:44,610 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:01:45,035 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:01:45,036 INFO L272 AbstractInterpreter]: Visited 93 different actions 93 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 06:01:45,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:01:45,066 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:01:45,563 INFO L227 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 72.74% of their original sizes. [2018-11-07 06:01:45,564 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:01:45,665 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-11-07 06:01:45,666 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:01:45,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:01:45,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 06:01:45,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:01:45,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:01:45,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:01:45,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:01:45,668 INFO L87 Difference]: Start difference. First operand 1208 states and 1646 transitions. Second operand 6 states. [2018-11-07 06:02:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:02:07,636 INFO L93 Difference]: Finished difference Result 2556 states and 3478 transitions. [2018-11-07 06:02:07,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 06:02:07,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-11-07 06:02:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:02:07,648 INFO L225 Difference]: With dead ends: 2556 [2018-11-07 06:02:07,649 INFO L226 Difference]: Without dead ends: 1354 [2018-11-07 06:02:07,653 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 192 GetRequests, 187 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 06:02:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-11-07 06:02:07,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1352. [2018-11-07 06:02:07,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-11-07 06:02:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1796 transitions. [2018-11-07 06:02:07,697 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1796 transitions. Word has length 192 [2018-11-07 06:02:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:02:07,698 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1796 transitions. [2018-11-07 06:02:07,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:02:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1796 transitions. [2018-11-07 06:02:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-11-07 06:02:07,706 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:02:07,706 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 06:02:07,707 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:02:07,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:02:07,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2141226182, now seen corresponding path program 1 times [2018-11-07 06:02:07,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:02:07,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:02:07,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:02:07,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:02:07,710 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:02:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:02:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 116 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 06:02:08,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:02:08,738 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:02:08,739 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 264 with the following transitions: [2018-11-07 06:02:08,739 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 06:02:08,745 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:02:08,746 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:02:11,044 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:02:11,045 INFO L272 AbstractInterpreter]: Visited 98 different actions 386 times. Merged at 8 different actions 30 times. Never widened. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:02:11,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:02:11,052 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:02:11,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:02:11,052 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 06:02:11,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:02:11,067 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:02:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:02:11,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:02:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-07 06:02:12,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:02:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 116 proven. 82 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 06:02:12,632 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:02:12,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2018-11-07 06:02:12,633 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:02:12,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 06:02:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 06:02:12,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:02:12,636 INFO L87 Difference]: Start difference. First operand 1352 states and 1796 transitions. Second operand 17 states. [2018-11-07 06:02:13,174 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2018-11-07 06:02:14,684 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-07 06:02:15,523 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 27 [2018-11-07 06:02:18,624 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2018-11-07 06:02:21,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:02:21,414 INFO L93 Difference]: Finished difference Result 3848 states and 5527 transitions. [2018-11-07 06:02:21,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-07 06:02:21,414 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 263 [2018-11-07 06:02:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:02:21,433 INFO L225 Difference]: With dead ends: 3848 [2018-11-07 06:02:21,433 INFO L226 Difference]: Without dead ends: 2646 [2018-11-07 06:02:21,445 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 547 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=550, Invalid=1612, Unknown=0, NotChecked=0, Total=2162 [2018-11-07 06:02:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2018-11-07 06:02:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2572. [2018-11-07 06:02:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2572 states. [2018-11-07 06:02:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2572 states to 2572 states and 3284 transitions. [2018-11-07 06:02:21,546 INFO L78 Accepts]: Start accepts. Automaton has 2572 states and 3284 transitions. Word has length 263 [2018-11-07 06:02:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:02:21,547 INFO L480 AbstractCegarLoop]: Abstraction has 2572 states and 3284 transitions. [2018-11-07 06:02:21,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 06:02:21,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2572 states and 3284 transitions. [2018-11-07 06:02:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-11-07 06:02:21,557 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:02:21,558 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 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] [2018-11-07 06:02:21,558 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:02:21,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:02:21,559 INFO L82 PathProgramCache]: Analyzing trace with hash -573304603, now seen corresponding path program 1 times [2018-11-07 06:02:21,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:02:21,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:02:21,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:02:21,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:02:21,560 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:02:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:02:22,204 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-07 06:02:22,446 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-07 06:02:22,953 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 06:02:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 133 proven. 158 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:02:23,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:02:23,520 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:02:23,520 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-11-07 06:02:23,521 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 06:02:23,527 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:02:23,527 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:02:26,923 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:02:26,924 INFO L272 AbstractInterpreter]: Visited 126 different actions 379 times. Merged at 8 different actions 25 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:02:26,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:02:26,961 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:02:26,961 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:02:26,962 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:02:26,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:02:26,977 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:02:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:02:27,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:02:48,043 WARN L179 SmtUtils]: Spent 20.27 s on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2018-11-07 06:02:48,620 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2018-11-07 06:02:48,972 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:02:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 277 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-07 06:02:49,440 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:02:59,510 WARN L179 SmtUtils]: Spent 9.49 s on a formula simplification. DAG size of input: 187 DAG size of output: 22 [2018-11-07 06:02:59,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-07 06:02:59,988 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2018-11-07 06:03:00,351 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-11-07 06:03:00,354 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,500 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,673 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,845 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:00,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,040 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,082 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,124 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,254 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,295 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,420 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,755 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:01,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,019 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,339 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,405 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,743 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,792 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:02,924 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,056 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,382 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,691 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,730 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:03,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,047 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,088 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,129 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,244 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,639 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,688 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:04,965 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,053 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,095 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,139 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,226 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,268 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,353 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,396 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,481 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,527 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,568 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:05,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,227 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,328 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,368 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,408 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,489 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,526 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,566 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,739 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,780 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,859 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:06,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,277 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,629 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,689 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,730 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,768 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,896 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,941 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:07,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,026 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,065 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,150 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,191 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,517 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,945 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:08,984 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,060 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,105 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,283 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:03:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 52 proven. 239 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:03:10,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:03:10,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2018-11-07 06:03:10,006 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:03:10,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 06:03:10,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 06:03:10,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2018-11-07 06:03:10,008 INFO L87 Difference]: Start difference. First operand 2572 states and 3284 transitions. Second operand 18 states. [2018-11-07 06:03:13,268 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2018-11-07 06:03:14,061 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2018-11-07 06:03:33,858 WARN L179 SmtUtils]: Spent 14.44 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-07 06:03:34,866 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2018-11-07 06:03:36,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:03:36,716 INFO L93 Difference]: Finished difference Result 8671 states and 11712 transitions. [2018-11-07 06:03:36,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-07 06:03:36,717 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 308 [2018-11-07 06:03:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:03:36,746 INFO L225 Difference]: With dead ends: 8671 [2018-11-07 06:03:36,746 INFO L226 Difference]: Without dead ends: 6249 [2018-11-07 06:03:36,766 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 528 SyntacticMatches, 111 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3407 ImplicationChecksByTransitivity, 59.5s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2018-11-07 06:03:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6249 states. [2018-11-07 06:03:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6249 to 5961. [2018-11-07 06:03:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5961 states. [2018-11-07 06:03:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 7510 transitions. [2018-11-07 06:03:36,918 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 7510 transitions. Word has length 308 [2018-11-07 06:03:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:03:36,918 INFO L480 AbstractCegarLoop]: Abstraction has 5961 states and 7510 transitions. [2018-11-07 06:03:36,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 06:03:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 7510 transitions. [2018-11-07 06:03:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-11-07 06:03:36,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:03:36,938 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 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] [2018-11-07 06:03:36,938 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:03:36,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:03:36,939 INFO L82 PathProgramCache]: Analyzing trace with hash -372002746, now seen corresponding path program 1 times [2018-11-07 06:03:36,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:03:36,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:03:36,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:03:36,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:03:36,940 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:03:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:03:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 205 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:03:37,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:03:37,782 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:03:37,783 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 328 with the following transitions: [2018-11-07 06:03:37,783 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [69], [71], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 06:03:37,787 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:03:37,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:03:40,322 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:03:40,322 INFO L272 AbstractInterpreter]: Visited 145 different actions 573 times. Merged at 8 different actions 29 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:03:40,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:03:40,327 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:03:40,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:03:40,327 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:03:40,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:03:40,335 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:03:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:03:40,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:03:53,169 WARN L179 SmtUtils]: Spent 9.64 s on a formula simplification. DAG size of input: 1629 DAG size of output: 49 [2018-11-07 06:03:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 48 proven. 167 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-11-07 06:03:53,344 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:03:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 06:03:57,203 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:03:57,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 5] total 22 [2018-11-07 06:03:57,203 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:03:57,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 06:03:57,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 06:03:57,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=390, Unknown=1, NotChecked=0, Total=462 [2018-11-07 06:03:57,204 INFO L87 Difference]: Start difference. First operand 5961 states and 7510 transitions. Second operand 20 states. [2018-11-07 06:04:09,546 WARN L179 SmtUtils]: Spent 8.10 s on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-11-07 06:04:25,945 WARN L179 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 62 [2018-11-07 06:04:48,723 WARN L179 SmtUtils]: Spent 18.26 s on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-11-07 06:04:58,872 WARN L179 SmtUtils]: Spent 10.12 s on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-11-07 06:05:11,394 WARN L179 SmtUtils]: Spent 10.04 s on a formula simplification that was a NOOP. DAG size: 56 [2018-11-07 06:05:17,605 WARN L179 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 57 [2018-11-07 06:05:23,774 WARN L179 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 55 Received shutdown request... [2018-11-07 06:05:27,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-07 06:05:27,582 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 06:05:27,587 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 06:05:27,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:05:27 BoogieIcfgContainer [2018-11-07 06:05:27,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 06:05:27,589 INFO L168 Benchmark]: Toolchain (without parser) took 238207.66 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 06:05:27,590 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 06:05:27,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2018-11-07 06:05:27,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -846.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-11-07 06:05:27,592 INFO L168 Benchmark]: Boogie Preprocessor took 86.73 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 06:05:27,592 INFO L168 Benchmark]: RCFGBuilder took 3155.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. [2018-11-07 06:05:27,593 INFO L168 Benchmark]: TraceAbstraction took 234178.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -444.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 06:05:27,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 123.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -846.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.73 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 3155.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234178.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -444.1 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was constructing difference of abstraction (5961states) and FLOYD_HOARE automaton (currently 47 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (2098 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 234.1s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 156.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 731 SDtfs, 10105 SDslu, 1485 SDs, 0 SdLazy, 15852 SolverSat, 2945 SolverUnsat, 30 SolverUnknown, 0 SolverNotchecked, 57.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2232 GetRequests, 1921 SyntacticMatches, 122 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5051 ImplicationChecksByTransitivity, 143.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5961occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.8s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9970524240157749 AbsIntWeakeningRatio, 0.13612565445026178 AbsIntAvgWeakeningVarsNumRemoved, 15.18324607329843 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 397 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 65.7s InterpolantComputationTime, 2345 NumberOfCodeBlocks, 2345 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3229 ConstructedInterpolants, 135 QuantifiedInterpolants, 8915023 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1529 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 1825/2730 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown