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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 15:02:57,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 15:02:57,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 15:02:57,786 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 15:02:57,787 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 15:02:57,788 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 15:02:57,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 15:02:57,793 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 15:02:57,795 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 15:02:57,796 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 15:02:57,797 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 15:02:57,797 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 15:02:57,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 15:02:57,799 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 15:02:57,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 15:02:57,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 15:02:57,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 15:02:57,809 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 15:02:57,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 15:02:57,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 15:02:57,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 15:02:57,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 15:02:57,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 15:02:57,840 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 15:02:57,863 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 15:02:57,863 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 15:02:57,864 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 15:02:57,864 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 15:02:57,865 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 15:02:57,865 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 15:02:57,865 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 15:02:57,865 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 15:02:57,865 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 15:02:57,866 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 15:02:57,866 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 15:02:57,866 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 15:02:57,867 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 15:02:57,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 15:02:57,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 15:02:57,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 15:02:57,867 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 15:02:57,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 15:02:57,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 15:02:57,868 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 15:02:57,868 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 15:02:57,868 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 15:02:57,869 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 15:02:57,869 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 15:02:57,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 15:02:57,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 15:02:57,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 15:02:57,870 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 15:02:57,871 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 15:02:57,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 15:02:57,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 15:02:57,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 15:02:57,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 15:02:57,938 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 15:02:57,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-11-07 15:02:58,006 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959c70044/56c8fda8fafd463790ba6308ac38734c/FLAG979938cd6 [2018-11-07 15:02:58,596 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 15:02:58,597 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label49_true-unreach-call_false-termination.c [2018-11-07 15:02:58,621 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959c70044/56c8fda8fafd463790ba6308ac38734c/FLAG979938cd6 [2018-11-07 15:02:58,636 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959c70044/56c8fda8fafd463790ba6308ac38734c [2018-11-07 15:02:58,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 15:02:58,648 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 15:02:58,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 15:02:58,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 15:02:58,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 15:02:58,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:02:58" (1/1) ... [2018-11-07 15:02:58,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b23081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:58, skipping insertion in model container [2018-11-07 15:02:58,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:02:58" (1/1) ... [2018-11-07 15:02:58,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 15:02:58,732 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 15:02:59,263 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:02:59,268 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 15:02:59,415 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:02:59,434 INFO L193 MainTranslator]: Completed translation [2018-11-07 15:02:59,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59 WrapperNode [2018-11-07 15:02:59,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 15:02:59,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 15:02:59,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 15:02:59,436 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 15:02:59,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 15:02:59,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 15:02:59,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 15:02:59,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 15:02:59,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (1/1) ... [2018-11-07 15:02:59,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 15:02:59,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 15:02:59,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 15:02:59,700 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 15:02:59,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (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 15:02:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 15:02:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 15:02:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 15:02:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 15:02:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 15:02:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 15:02:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 15:02:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 15:02:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 15:03:03,565 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 15:03:03,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:03:03 BoogieIcfgContainer [2018-11-07 15:03:03,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 15:03:03,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 15:03:03,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 15:03:03,571 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 15:03:03,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:02:58" (1/3) ... [2018-11-07 15:03:03,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282ad36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:03:03, skipping insertion in model container [2018-11-07 15:03:03,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:02:59" (2/3) ... [2018-11-07 15:03:03,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282ad36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:03:03, skipping insertion in model container [2018-11-07 15:03:03,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:03:03" (3/3) ... [2018-11-07 15:03:03,576 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label49_true-unreach-call_false-termination.c [2018-11-07 15:03:03,586 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 15:03:03,596 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 15:03:03,614 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 15:03:03,654 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 15:03:03,655 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 15:03:03,655 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 15:03:03,655 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 15:03:03,655 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 15:03:03,656 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 15:03:03,656 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 15:03:03,656 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 15:03:03,685 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-07 15:03:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-07 15:03:03,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:03:03,697 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:03:03,700 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:03:03,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:03:03,707 INFO L82 PathProgramCache]: Analyzing trace with hash -825405036, now seen corresponding path program 1 times [2018-11-07 15:03:03,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:03:03,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:03,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:03:03,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:03,774 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:03:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:03:04,172 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 15:03:04,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:03:04,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:03:04,175 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:03:04,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:03:04,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:03:04,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:03:04,201 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-11-07 15:03:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:03:07,375 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-11-07 15:03:07,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:03:07,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-11-07 15:03:07,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:03:07,399 INFO L225 Difference]: With dead ends: 894 [2018-11-07 15:03:07,399 INFO L226 Difference]: Without dead ends: 633 [2018-11-07 15:03:07,408 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:03:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-11-07 15:03:07,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-11-07 15:03:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-11-07 15:03:07,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 962 transitions. [2018-11-07 15:03:07,511 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 962 transitions. Word has length 66 [2018-11-07 15:03:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:03:07,512 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 962 transitions. [2018-11-07 15:03:07,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:03:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 962 transitions. [2018-11-07 15:03:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-07 15:03:07,525 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:03:07,525 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:07,526 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:03:07,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:03:07,526 INFO L82 PathProgramCache]: Analyzing trace with hash 965459243, now seen corresponding path program 1 times [2018-11-07 15:03:07,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:03:07,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:07,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:03:07,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:07,529 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:03:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:03:07,887 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:03:07,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:03:07,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:03:07,888 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:03:07,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:03:07,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:03:07,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:03:07,891 INFO L87 Difference]: Start difference. First operand 633 states and 962 transitions. Second operand 4 states. [2018-11-07 15:03:11,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:03:11,024 INFO L93 Difference]: Finished difference Result 2358 states and 3743 transitions. [2018-11-07 15:03:11,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:03:11,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2018-11-07 15:03:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:03:11,042 INFO L225 Difference]: With dead ends: 2358 [2018-11-07 15:03:11,042 INFO L226 Difference]: Without dead ends: 1731 [2018-11-07 15:03:11,049 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 15:03:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-11-07 15:03:11,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-11-07 15:03:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-11-07 15:03:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2521 transitions. [2018-11-07 15:03:11,151 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2521 transitions. Word has length 179 [2018-11-07 15:03:11,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:03:11,157 INFO L480 AbstractCegarLoop]: Abstraction has 1731 states and 2521 transitions. [2018-11-07 15:03:11,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:03:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2521 transitions. [2018-11-07 15:03:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-11-07 15:03:11,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:03:11,172 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:11,172 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:03:11,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:03:11,173 INFO L82 PathProgramCache]: Analyzing trace with hash 747473196, now seen corresponding path program 1 times [2018-11-07 15:03:11,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:03:11,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:11,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:03:11,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:03:11,175 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:03:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:03:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:03:11,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:03:11,814 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 15:03:11,817 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-11-07 15:03:11,820 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], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 15:03:11,887 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 15:03:11,887 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 15:03:12,517 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 15:03:12,519 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 15:03:12,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:03:12,566 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 15:03:13,242 INFO L227 lantSequenceWeakener]: Weakened 253 states. On average, predicates are now at 78.12% of their original sizes. [2018-11-07 15:03:13,243 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 15:03:13,566 INFO L415 sIntCurrentIteration]: We unified 261 AI predicates to 261 [2018-11-07 15:03:13,567 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 15:03:13,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 15:03:13,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 15:03:13,568 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:03:13,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 15:03:13,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 15:03:13,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 15:03:13,570 INFO L87 Difference]: Start difference. First operand 1731 states and 2521 transitions. Second operand 7 states. [2018-11-07 15:03:15,791 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 15:06:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:06:36,554 INFO L93 Difference]: Finished difference Result 3641 states and 5276 transitions. [2018-11-07 15:06:36,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:06:36,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2018-11-07 15:06:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:06:36,566 INFO L225 Difference]: With dead ends: 3641 [2018-11-07 15:06:36,566 INFO L226 Difference]: Without dead ends: 1916 [2018-11-07 15:06:36,572 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 15:06:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-11-07 15:06:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2018-11-07 15:06:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-11-07 15:06:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2711 transitions. [2018-11-07 15:06:36,628 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2711 transitions. Word has length 262 [2018-11-07 15:06:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:06:36,628 INFO L480 AbstractCegarLoop]: Abstraction has 1914 states and 2711 transitions. [2018-11-07 15:06:36,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 15:06:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2711 transitions. [2018-11-07 15:06:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-11-07 15:06:36,638 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:06:36,639 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 15:06:36,639 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:06:36,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:06:36,640 INFO L82 PathProgramCache]: Analyzing trace with hash -178374725, now seen corresponding path program 1 times [2018-11-07 15:06:36,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:06:36,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:06:36,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:06:36,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:06:36,642 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:06:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:06:37,214 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-07 15:06:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 264 proven. 161 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 15:06:37,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:06:37,589 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 15:06:37,589 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-11-07 15:06:37,590 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], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 15:06:37,595 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 15:06:37,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 15:06:37,809 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 15:06:37,810 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 15:06:37,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:06:37,847 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 15:06:38,389 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 78.09% of their original sizes. [2018-11-07 15:06:38,389 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 15:06:39,647 INFO L415 sIntCurrentIteration]: We unified 346 AI predicates to 346 [2018-11-07 15:06:39,647 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 15:06:39,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 15:06:39,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [12] total 34 [2018-11-07 15:06:39,648 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:06:39,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-07 15:06:39,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-07 15:06:39,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-11-07 15:06:39,650 INFO L87 Difference]: Start difference. First operand 1914 states and 2711 transitions. Second operand 24 states. [2018-11-07 15:06:47,688 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 15:07:11,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 15:07:11,061 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 15:07:11,067 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 15:07:11,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:07:11 BoogieIcfgContainer [2018-11-07 15:07:11,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 15:07:11,069 INFO L168 Benchmark]: Toolchain (without parser) took 252422.13 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 756.8 MB. Max. memory is 7.1 GB. [2018-11-07 15:07:11,070 INFO L168 Benchmark]: CDTParser took 0.23 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 15:07:11,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.79 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-07 15:07:11,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -832.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2018-11-07 15:07:11,075 INFO L168 Benchmark]: Boogie Preprocessor took 122.82 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 15:07:11,075 INFO L168 Benchmark]: RCFGBuilder took 3867.37 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: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 7.1 GB. [2018-11-07 15:07:11,076 INFO L168 Benchmark]: TraceAbstraction took 247500.62 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 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 660.7 MB. Max. memory is 7.1 GB. [2018-11-07 15:07:11,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 786.79 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 139.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -832.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.82 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 3867.37 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: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247500.62 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 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 660.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (1914states) and FLOYD_HOARE automaton (currently 22 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (903 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 247.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 240.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 554 SDtfs, 4147 SDslu, 554 SDs, 0 SdLazy, 4088 SolverSat, 942 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 218.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 627 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1914occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9974228455211196 AbsIntWeakeningRatio, 0.09555189456342669 AbsIntAvgWeakeningVarsNumRemoved, 16.02635914332784 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 854 NumberOfCodeBlocks, 854 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 850 ConstructedInterpolants, 0 QuantifiedInterpolants, 1589707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 528/691 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown