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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:10:24,456 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:10:24,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:10:24,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:10:24,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:10:24,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:10:24,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:10:24,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:10:24,490 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:10:24,491 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:10:24,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:10:24,499 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:10:24,503 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:10:24,506 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:10:24,507 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:10:24,508 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:10:24,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:10:24,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:10:24,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:10:24,522 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:10:24,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:10:24,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:10:24,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 04:10:24,539 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:10:24,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:10:24,541 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:10:24,541 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:10:24,543 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:10:24,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:10:24,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:10:24,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:10:24,571 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:10:24,571 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:10:24,571 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:10:24,571 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:10:24,572 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:10:24,572 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:10:24,572 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:10:24,572 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:10:24,572 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:10:24,574 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:10:24,574 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:10:24,574 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:10:24,575 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:10:24,575 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:10:24,575 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:10:24,575 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:10:24,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:10:24,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:10:24,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:10:24,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:10:24,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:10:24,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:10:24,579 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:10:24,579 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:10:24,579 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:10:24,579 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:10:24,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:10:24,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:10:24,580 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:10:24,580 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:10:24,580 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:10:24,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:10:24,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:10:24,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:10:24,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:10:24,658 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:10:24,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-11-07 04:10:24,739 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737f3a0ad/a850f194493c477a856cb02735286390/FLAGc9f904bd3 [2018-11-07 04:10:25,452 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:10:25,453 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-11-07 04:10:25,493 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737f3a0ad/a850f194493c477a856cb02735286390/FLAGc9f904bd3 [2018-11-07 04:10:25,513 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737f3a0ad/a850f194493c477a856cb02735286390 [2018-11-07 04:10:25,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:10:25,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:10:25,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:10:25,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:10:25,536 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:10:25,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:25" (1/1) ... [2018-11-07 04:10:25,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740a36e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:25, skipping insertion in model container [2018-11-07 04:10:25,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:10:25" (1/1) ... [2018-11-07 04:10:25,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:10:25,702 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:10:26,896 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:10:26,902 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:10:27,371 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:10:27,403 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:10:27,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27 WrapperNode [2018-11-07 04:10:27,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:10:27,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:10:27,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:10:27,405 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:10:27,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:10:27,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:10:27,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:10:27,714 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:10:27,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (1/1) ... [2018-11-07 04:10:27,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:10:27,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:10:27,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:10:27,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:10:27,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (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 04:10:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:10:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:10:28,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:10:28,050 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:10:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:10:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:10:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:10:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:10:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:10:28,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:10:28,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:10:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:10:36,736 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:10:36,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:36 BoogieIcfgContainer [2018-11-07 04:10:36,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:10:36,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:10:36,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:10:36,742 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:10:36,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:10:25" (1/3) ... [2018-11-07 04:10:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdc039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:36, skipping insertion in model container [2018-11-07 04:10:36,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:27" (2/3) ... [2018-11-07 04:10:36,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acdc039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:10:36, skipping insertion in model container [2018-11-07 04:10:36,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:10:36" (3/3) ... [2018-11-07 04:10:36,746 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label58_true-unreach-call.c [2018-11-07 04:10:36,756 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:10:36,766 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:10:36,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:10:36,830 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:10:36,830 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:10:36,830 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:10:36,830 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:10:36,831 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:10:36,831 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:10:36,831 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:10:36,831 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:10:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 04:10:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-07 04:10:36,882 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:10:36,883 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] [2018-11-07 04:10:36,885 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:10:36,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:10:36,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1155307225, now seen corresponding path program 1 times [2018-11-07 04:10:36,894 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:10:36,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:36,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:10:36,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:36,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:10:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:10:37,428 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:10:37,568 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 04:10:37,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:10:37,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:10:37,577 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:10:37,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:10:37,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:10:37,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:10:37,605 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 04:10:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:10:44,629 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 04:10:44,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:10:44,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-07 04:10:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:10:44,673 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 04:10:44,674 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 04:10:44,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:10:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 04:10:44,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 04:10:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 04:10:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-11-07 04:10:44,858 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 47 [2018-11-07 04:10:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:10:44,859 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-11-07 04:10:44,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:10:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-11-07 04:10:44,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-07 04:10:44,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:10:44,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:44,875 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:10:44,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:10:44,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1285233055, now seen corresponding path program 1 times [2018-11-07 04:10:44,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:10:44,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:44,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:10:44,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:44,878 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:10:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:10:45,304 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:10:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:10:45,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:10:45,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:10:45,669 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:10:45,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:10:45,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:10:45,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:10:45,672 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-11-07 04:10:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:10:55,562 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-11-07 04:10:55,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:10:55,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-07 04:10:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:10:55,585 INFO L225 Difference]: With dead ends: 4419 [2018-11-07 04:10:55,585 INFO L226 Difference]: Without dead ends: 2951 [2018-11-07 04:10:55,591 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:10:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-11-07 04:10:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-11-07 04:10:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-11-07 04:10:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-11-07 04:10:55,708 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 136 [2018-11-07 04:10:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:10:55,709 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-11-07 04:10:55,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:10:55,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-11-07 04:10:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-11-07 04:10:55,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:10:55,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:55,715 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:10:55,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:10:55,716 INFO L82 PathProgramCache]: Analyzing trace with hash 330900828, now seen corresponding path program 1 times [2018-11-07 04:10:55,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:10:55,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:55,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:10:55,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:10:55,718 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:10:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:10:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:10:56,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:10:56,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:10:56,023 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:10:56,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:10:56,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:10:56,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:10:56,025 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-11-07 04:11:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:11:04,604 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-11-07 04:11:04,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:11:04,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2018-11-07 04:11:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:11:04,661 INFO L225 Difference]: With dead ends: 10194 [2018-11-07 04:11:04,662 INFO L226 Difference]: Without dead ends: 7272 [2018-11-07 04:11:04,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:11:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-11-07 04:11:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-11-07 04:11:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-11-07 04:11:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-11-07 04:11:04,885 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 183 [2018-11-07 04:11:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:11:04,886 INFO L480 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-11-07 04:11:04,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:11:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-11-07 04:11:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-07 04:11:04,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:11:04,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:04,891 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:11:04,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:04,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2489344, now seen corresponding path program 1 times [2018-11-07 04:11:04,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:11:04,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:04,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:11:04,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:04,893 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:11:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:11:05,229 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:11:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:11:05,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:11:05,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:11:05,493 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:11:05,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:11:05,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:11:05,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:11:05,495 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-11-07 04:11:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:11:10,778 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-11-07 04:11:10,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:11:10,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-11-07 04:11:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:11:10,834 INFO L225 Difference]: With dead ends: 17365 [2018-11-07 04:11:10,834 INFO L226 Difference]: Without dead ends: 10163 [2018-11-07 04:11:10,862 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:11:10,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-11-07 04:11:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-11-07 04:11:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-11-07 04:11:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-11-07 04:11:11,118 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 185 [2018-11-07 04:11:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:11:11,119 INFO L480 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-11-07 04:11:11,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:11:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-11-07 04:11:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-11-07 04:11:11,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:11:11,128 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:11:11,128 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:11:11,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1317304803, now seen corresponding path program 1 times [2018-11-07 04:11:11,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:11:11,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:11,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:11:11,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:11,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:11:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:11:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-07 04:11:11,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:11:11,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:11:11,389 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:11:11,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:11:11,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:11:11,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:11:11,391 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-11-07 04:11:20,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:11:20,303 INFO L93 Difference]: Finished difference Result 28819 states and 41884 transitions. [2018-11-07 04:11:20,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:11:20,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 243 [2018-11-07 04:11:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:11:20,383 INFO L225 Difference]: With dead ends: 28819 [2018-11-07 04:11:20,384 INFO L226 Difference]: Without dead ends: 18717 [2018-11-07 04:11:20,439 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 04:11:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18717 states. [2018-11-07 04:11:20,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18717 to 18717. [2018-11-07 04:11:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18717 states. [2018-11-07 04:11:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18717 states to 18717 states and 26000 transitions. [2018-11-07 04:11:20,852 INFO L78 Accepts]: Start accepts. Automaton has 18717 states and 26000 transitions. Word has length 243 [2018-11-07 04:11:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:11:20,852 INFO L480 AbstractCegarLoop]: Abstraction has 18717 states and 26000 transitions. [2018-11-07 04:11:20,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:11:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18717 states and 26000 transitions. [2018-11-07 04:11:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-11-07 04:11:20,893 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:11:20,894 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:20,894 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:11:20,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:20,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1070733005, now seen corresponding path program 1 times [2018-11-07 04:11:20,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:11:20,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:20,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:11:20,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:20,896 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:11:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:11:21,197 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:11:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 80 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:11:21,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:11:21,410 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:11:21,411 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 398 with the following transitions: [2018-11-07 04:11:21,414 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2948], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:11:21,510 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:11:21,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:11:29,471 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:11:29,473 INFO L272 AbstractInterpreter]: Visited 283 different actions 283 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 04:11:29,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:29,512 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:11:32,883 INFO L227 lantSequenceWeakener]: Weakened 389 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-07 04:11:32,888 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:11:33,470 INFO L415 sIntCurrentIteration]: We unified 396 AI predicates to 396 [2018-11-07 04:11:33,470 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:11:33,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:11:33,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 04:11:33,472 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:11:33,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 04:11:33,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 04:11:33,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:11:33,473 INFO L87 Difference]: Start difference. First operand 18717 states and 26000 transitions. Second operand 8 states. [2018-11-07 04:11:38,927 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:13:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:04,409 INFO L93 Difference]: Finished difference Result 38133 states and 52855 transitions. [2018-11-07 04:13:04,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:13:04,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 397 [2018-11-07 04:13:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:04,468 INFO L225 Difference]: With dead ends: 38133 [2018-11-07 04:13:04,468 INFO L226 Difference]: Without dead ends: 19422 [2018-11-07 04:13:04,510 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 398 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 04:13:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19422 states. [2018-11-07 04:13:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 19420. [2018-11-07 04:13:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19420 states. [2018-11-07 04:13:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19420 states to 19420 states and 26715 transitions. [2018-11-07 04:13:04,880 INFO L78 Accepts]: Start accepts. Automaton has 19420 states and 26715 transitions. Word has length 397 [2018-11-07 04:13:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:04,880 INFO L480 AbstractCegarLoop]: Abstraction has 19420 states and 26715 transitions. [2018-11-07 04:13:04,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 04:13:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 19420 states and 26715 transitions. [2018-11-07 04:13:04,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2018-11-07 04:13:04,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:04,927 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:13:04,927 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:04,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:04,928 INFO L82 PathProgramCache]: Analyzing trace with hash 951138347, now seen corresponding path program 1 times [2018-11-07 04:13:04,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:04,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:04,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:04,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:04,931 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:05,479 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:13:05,675 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:13:05,909 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:13:06,349 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 04:13:06,967 WARN L179 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-07 04:13:07,583 WARN L179 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-07 04:13:07,821 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-07 04:13:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 179 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:13:08,540 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:13:08,540 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:13:08,541 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 585 with the following transitions: [2018-11-07 04:13:08,542 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2948], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:13:08,552 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:13:08,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:13:27,775 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:13:27,776 INFO L272 AbstractInterpreter]: Visited 287 different actions 567 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 04:13:27,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:27,787 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:13:33,491 INFO L227 lantSequenceWeakener]: Weakened 308 states. On average, predicates are now at 77.39% of their original sizes. [2018-11-07 04:13:33,492 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 04:13:55,350 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:13:55,355 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:13:55,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:13:55 BoogieIcfgContainer [2018-11-07 04:13:55,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:13:55,357 INFO L168 Benchmark]: Toolchain (without parser) took 209829.22 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,358 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:13:55,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1873.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 308.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -941.3 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,360 INFO L168 Benchmark]: Boogie Preprocessor took 256.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,361 INFO L168 Benchmark]: RCFGBuilder took 8765.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 510.6 MB). Peak memory consumption was 510.6 MB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,362 INFO L168 Benchmark]: TraceAbstraction took 198618.25 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -562.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 04:13:55,367 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1873.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 308.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -941.3 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 256.97 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8765.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 510.6 MB). Peak memory consumption was 510.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198618.25 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -562.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was analyzing trace of length 585 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 198.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 131.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1467 SDtfs, 11905 SDslu, 811 SDs, 0 SdLazy, 22473 SolverSat, 6599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 438 GetRequests, 401 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19420occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997503737916537 AbsIntWeakeningRatio, 0.059244126659857 AbsIntAvgWeakeningVarsNumRemoved, 378.87640449438203 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1191 NumberOfCodeBlocks, 1191 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 712348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 374/441 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown