java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:38:15,489 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:38:15,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:38:15,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:38:15,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:38:15,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:38:15,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:38:15,512 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:38:15,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:38:15,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:38:15,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:38:15,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:38:15,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:38:15,522 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:38:15,525 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:38:15,526 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:38:15,527 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:38:15,530 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:38:15,532 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:38:15,537 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:38:15,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:38:15,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:38:15,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 02:38:15,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 02:38:15,543 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 02:38:15,544 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 02:38:15,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 02:38:15,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 02:38:15,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 02:38:15,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 02:38:15,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 02:38:15,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 02:38:15,556 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 02:38:15,584 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:38:15,584 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:38:15,585 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:38:15,585 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:38:15,585 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:38:15,585 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:38:15,586 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:38:15,586 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:38:15,586 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:38:15,586 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:38:15,586 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:38:15,587 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:38:15,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:38:15,587 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:38:15,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:38:15,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:38:15,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:38:15,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:38:15,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:38:15,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:38:15,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:38:15,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:38:15,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:38:15,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:38:15,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:38:15,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:38:15,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:38:15,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:38:15,590 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:38:15,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:38:15,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:38:15,591 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:38:15,591 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:38:15,591 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:38:15,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:38:15,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:38:15,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:38:15,654 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:38:15,654 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:38:15,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-10-27 02:38:15,716 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/faf12cd58/47a537cf1ae04fa28d2a0aa1c61c99bf/FLAGa49a70d4e [2018-10-27 02:38:16,301 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:38:16,302 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-10-27 02:38:16,317 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/faf12cd58/47a537cf1ae04fa28d2a0aa1c61c99bf/FLAGa49a70d4e [2018-10-27 02:38:16,335 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/faf12cd58/47a537cf1ae04fa28d2a0aa1c61c99bf [2018-10-27 02:38:16,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:38:16,352 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:38:16,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:38:16,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:38:16,359 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:38:16,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:16, skipping insertion in model container [2018-10-27 02:38:16,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:38:16" (1/1) ... [2018-10-27 02:38:16,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:38:16,464 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:38:17,117 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:38:17,122 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:38:17,326 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:38:17,347 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:38:17,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17 WrapperNode [2018-10-27 02:38:17,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:38:17,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:38:17,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:38:17,349 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:38:17,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:38:17,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:38:17,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:38:17,722 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:38:17,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... [2018-10-27 02:38:17,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:38:17,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:38:17,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:38:17,858 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:38:17,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:38:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:38:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:38:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:38:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:38:17,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:38:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:38:17,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:38:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:38:22,235 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:38:22,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:38:22 BoogieIcfgContainer [2018-10-27 02:38:22,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:38:22,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:38:22,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:38:22,241 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:38:22,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:38:16" (1/3) ... [2018-10-27 02:38:22,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:38:22, skipping insertion in model container [2018-10-27 02:38:22,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:38:17" (2/3) ... [2018-10-27 02:38:22,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:38:22, skipping insertion in model container [2018-10-27 02:38:22,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:38:22" (3/3) ... [2018-10-27 02:38:22,245 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label50_true-unreach-call.c [2018-10-27 02:38:22,255 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:38:22,264 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:38:22,284 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:38:22,323 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:38:22,324 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:38:22,324 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:38:22,324 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:38:22,324 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:38:22,325 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:38:22,325 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:38:22,325 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:38:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-27 02:38:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 02:38:22,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:22,365 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:22,367 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:22,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:22,374 INFO L82 PathProgramCache]: Analyzing trace with hash -2098834559, now seen corresponding path program 1 times [2018-10-27 02:38:22,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:22,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:22,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:22,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:22,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:22,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:22,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:38:22,902 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:22,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:38:22,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:38:22,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:38:22,929 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-27 02:38:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:26,848 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-10-27 02:38:26,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:38:26,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-10-27 02:38:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:26,874 INFO L225 Difference]: With dead ends: 1001 [2018-10-27 02:38:26,875 INFO L226 Difference]: Without dead ends: 702 [2018-10-27 02:38:26,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:38:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-10-27 02:38:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-10-27 02:38:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-10-27 02:38:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-10-27 02:38:27,017 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 43 [2018-10-27 02:38:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:27,021 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-10-27 02:38:27,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:38:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-10-27 02:38:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-27 02:38:27,033 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:27,034 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:27,034 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:27,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:27,036 INFO L82 PathProgramCache]: Analyzing trace with hash 275725715, now seen corresponding path program 1 times [2018-10-27 02:38:27,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:27,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:27,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:27,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:27,039 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:27,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:27,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:38:27,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:27,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:38:27,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:38:27,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:38:27,426 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-10-27 02:38:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:32,798 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-10-27 02:38:32,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:38:32,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-27 02:38:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:32,815 INFO L225 Difference]: With dead ends: 2534 [2018-10-27 02:38:32,816 INFO L226 Difference]: Without dead ends: 1841 [2018-10-27 02:38:32,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 02:38:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-10-27 02:38:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-10-27 02:38:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-10-27 02:38:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-10-27 02:38:32,920 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 116 [2018-10-27 02:38:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:32,921 INFO L481 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-10-27 02:38:32,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:38:32,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-10-27 02:38:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-27 02:38:32,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:32,932 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:32,933 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:32,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:32,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1222906116, now seen corresponding path program 1 times [2018-10-27 02:38:32,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:32,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:32,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:32,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:32,935 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:33,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:33,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 02:38:33,216 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:33,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 02:38:33,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 02:38:33,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 02:38:33,217 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-10-27 02:38:35,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:35,720 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-10-27 02:38:35,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 02:38:35,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-10-27 02:38:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:35,753 INFO L225 Difference]: With dead ends: 4796 [2018-10-27 02:38:35,753 INFO L226 Difference]: Without dead ends: 2987 [2018-10-27 02:38:35,766 INFO L605 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 [2018-10-27 02:38:35,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-10-27 02:38:35,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-10-27 02:38:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-10-27 02:38:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-10-27 02:38:35,861 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 117 [2018-10-27 02:38:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:35,863 INFO L481 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-10-27 02:38:35,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 02:38:35,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-10-27 02:38:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-27 02:38:35,868 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:35,869 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:38:35,869 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:35,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:35,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1567634535, now seen corresponding path program 1 times [2018-10-27 02:38:35,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:35,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:35,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:35,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:35,872 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:36,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:38:36,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 02:38:36,253 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:36,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 02:38:36,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 02:38:36,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 02:38:36,255 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-10-27 02:38:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:38:43,639 INFO L93 Difference]: Finished difference Result 11412 states and 20997 transitions. [2018-10-27 02:38:43,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 02:38:43,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-27 02:38:43,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:38:43,747 INFO L225 Difference]: With dead ends: 11412 [2018-10-27 02:38:43,747 INFO L226 Difference]: Without dead ends: 8448 [2018-10-27 02:38:43,830 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 02:38:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2018-10-27 02:38:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 7652. [2018-10-27 02:38:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7652 states. [2018-10-27 02:38:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 11186 transitions. [2018-10-27 02:38:44,155 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 11186 transitions. Word has length 142 [2018-10-27 02:38:44,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:38:44,155 INFO L481 AbstractCegarLoop]: Abstraction has 7652 states and 11186 transitions. [2018-10-27 02:38:44,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 02:38:44,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 11186 transitions. [2018-10-27 02:38:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-27 02:38:44,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:38:44,165 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:38:44,166 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:38:44,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:44,166 INFO L82 PathProgramCache]: Analyzing trace with hash 961249486, now seen corresponding path program 1 times [2018-10-27 02:38:44,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:38:44,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:44,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:38:44,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:38:44,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:38:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:38:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:38:44,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:38:44,653 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:38:44,654 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-10-27 02:38:44,656 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:38:44,739 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:38:44,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:38:46,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:38:46,534 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-27 02:38:46,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:38:46,548 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:38:48,847 INFO L227 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 73.59% of their original sizes. [2018-10-27 02:38:48,848 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:38:49,331 INFO L415 sIntCurrentIteration]: We unified 189 AI predicates to 189 [2018-10-27 02:38:49,332 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:38:49,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:38:49,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 02:38:49,333 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:38:49,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 02:38:49,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 02:38:49,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 02:38:49,335 INFO L87 Difference]: Start difference. First operand 7652 states and 11186 transitions. Second operand 7 states. [2018-10-27 02:38:51,679 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:39:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:39:24,267 INFO L93 Difference]: Finished difference Result 15490 states and 22585 transitions. [2018-10-27 02:39:24,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 02:39:24,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2018-10-27 02:39:24,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:39:24,319 INFO L225 Difference]: With dead ends: 15490 [2018-10-27 02:39:24,320 INFO L226 Difference]: Without dead ends: 7844 [2018-10-27 02:39:24,354 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 02:39:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2018-10-27 02:39:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 7842. [2018-10-27 02:39:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7842 states. [2018-10-27 02:39:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 11387 transitions. [2018-10-27 02:39:24,621 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 11387 transitions. Word has length 190 [2018-10-27 02:39:24,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:39:24,621 INFO L481 AbstractCegarLoop]: Abstraction has 7842 states and 11387 transitions. [2018-10-27 02:39:24,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 02:39:24,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 11387 transitions. [2018-10-27 02:39:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-27 02:39:24,631 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:39:24,631 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:39:24,632 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:39:24,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:39:24,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1177715268, now seen corresponding path program 1 times [2018-10-27 02:39:24,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:39:24,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:24,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:39:24,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:24,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:39:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:39:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:39:25,220 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:39:25,221 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:39:25,222 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-10-27 02:39:25,222 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:39:25,236 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:39:25,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:39:28,350 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:39:44,928 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 02:39:44,928 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-27 02:39:44,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:39:44,940 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 02:39:44,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:39:44,940 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 02:39:44,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:39:44,949 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 02:39:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:39:45,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 02:39:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:39:45,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 02:39:45,593 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 02:39:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:39:46,083 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 02:39:46,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 02:39:46,084 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 02:39:46,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 02:39:46,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 02:39:46,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 02:39:46,086 INFO L87 Difference]: Start difference. First operand 7842 states and 11387 transitions. Second operand 9 states. [2018-10-27 02:39:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:39:55,866 INFO L93 Difference]: Finished difference Result 21971 states and 42575 transitions. [2018-10-27 02:39:55,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 02:39:55,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2018-10-27 02:39:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:39:56,042 INFO L225 Difference]: With dead ends: 21971 [2018-10-27 02:39:56,042 INFO L226 Difference]: Without dead ends: 14325 [2018-10-27 02:39:56,181 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-27 02:39:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14325 states. [2018-10-27 02:39:56,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14325 to 14166. [2018-10-27 02:39:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14166 states. [2018-10-27 02:39:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14166 states to 14166 states and 24886 transitions. [2018-10-27 02:39:57,018 INFO L78 Accepts]: Start accepts. Automaton has 14166 states and 24886 transitions. Word has length 247 [2018-10-27 02:39:57,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:39:57,019 INFO L481 AbstractCegarLoop]: Abstraction has 14166 states and 24886 transitions. [2018-10-27 02:39:57,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 02:39:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 14166 states and 24886 transitions. [2018-10-27 02:39:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-10-27 02:39:57,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:39:57,032 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 02:39:57,032 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:39:57,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:39:57,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1757010189, now seen corresponding path program 1 times [2018-10-27 02:39:57,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:39:57,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:57,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:39:57,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:39:57,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:39:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:39:57,525 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 02:39:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-27 02:39:58,337 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:39:58,337 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:39:58,337 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-10-27 02:39:58,338 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [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], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-27 02:39:58,347 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:39:58,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:40:00,490 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:40:17,070 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:40:17,070 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-27 02:40:17,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:40:17,084 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:40:22,289 INFO L227 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 74.28% of their original sizes. [2018-10-27 02:40:22,289 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:40:43,710 INFO L415 sIntCurrentIteration]: We unified 264 AI predicates to 264 [2018-10-27 02:40:43,711 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:40:43,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:40:43,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [9] total 32 [2018-10-27 02:40:43,711 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:40:43,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-27 02:40:43,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-27 02:40:43,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2018-10-27 02:40:43,713 INFO L87 Difference]: Start difference. First operand 14166 states and 24886 transitions. Second operand 25 states. Received shutdown request... [2018-10-27 02:42:02,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 02:42:02,816 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 02:42:02,820 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 02:42:02,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:42:02 BoogieIcfgContainer [2018-10-27 02:42:02,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 02:42:02,821 INFO L168 Benchmark]: Toolchain (without parser) took 226470.63 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 1.7 GB in the end (delta: -302.8 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-27 02:42:02,822 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 02:42:02,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 995.76 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:02,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 371.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -869.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:02,824 INFO L168 Benchmark]: Boogie Preprocessor took 136.01 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. [2018-10-27 02:42:02,825 INFO L168 Benchmark]: RCFGBuilder took 4378.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 196.7 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. [2018-10-27 02:42:02,826 INFO L168 Benchmark]: TraceAbstraction took 220583.48 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 316.9 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 02:42:02,830 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 995.76 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 371.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -869.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.01 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 4378.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 196.7 MB). Peak memory consumption was 196.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220583.48 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 316.9 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (14166states) and FLOYD_HOARE automaton (currently 9 states, 25 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 30 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 220.5s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 143.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1443 SDtfs, 6082 SDslu, 1314 SDs, 0 SdLazy, 10873 SolverSat, 2598 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1012 GetRequests, 934 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 27.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14166occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 40.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9955499491923336 AbsIntWeakeningRatio, 0.12362030905077263 AbsIntAvgWeakeningVarsNumRemoved, 602.4370860927153 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1367 NumberOfCodeBlocks, 1367 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1605 ConstructedInterpolants, 0 QuantifiedInterpolants, 994751 SizeOfPredicates, 0 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 768/851 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown