java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:16:23,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:16:23,359 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:16:23,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:16:23,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:16:23,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:16:23,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:16:23,378 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:16:23,379 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:16:23,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:16:23,381 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:16:23,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:16:23,382 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:16:23,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:16:23,385 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:16:23,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:16:23,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:16:23,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:16:23,390 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:16:23,392 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:16:23,393 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:16:23,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:16:23,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:16:23,409 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:16:23,409 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:16:23,412 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:16:23,413 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:16:23,414 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:16:23,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:16:23,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:16:23,435 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:16:23,435 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:16:23,436 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:16:23,436 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:16:23,436 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:16:23,436 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:16:23,436 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:16:23,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:16:23,437 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:16:23,437 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:16:23,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:16:23,438 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:16:23,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:16:23,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:16:23,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:16:23,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:16:23,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:16:23,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:16:23,439 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:16:23,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:16:23,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:16:23,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:16:23,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:16:23,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:16:23,441 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:16:23,442 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:16:23,442 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:16:23,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:16:23,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:16:23,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:16:23,527 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:16:23,528 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:16:23,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c [2018-10-24 22:16:23,606 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f911ac090/1c62a8aef89f4b51bb619d21f2093f50/FLAG5126ce331 [2018-10-24 22:16:24,375 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:16:24,376 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c [2018-10-24 22:16:24,402 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f911ac090/1c62a8aef89f4b51bb619d21f2093f50/FLAG5126ce331 [2018-10-24 22:16:24,419 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f911ac090/1c62a8aef89f4b51bb619d21f2093f50 [2018-10-24 22:16:24,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:16:24,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:16:24,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:16:24,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:16:24,438 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:16:24,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:16:24" (1/1) ... [2018-10-24 22:16:24,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:24, skipping insertion in model container [2018-10-24 22:16:24,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:16:24" (1/1) ... [2018-10-24 22:16:24,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:16:24,600 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:16:25,696 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:16:25,701 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:16:26,121 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:16:26,155 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:16:26,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26 WrapperNode [2018-10-24 22:16:26,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:16:26,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:16:26,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:16:26,157 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:16:26,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:16:26,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:16:26,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:16:26,540 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:16:26,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... [2018-10-24 22:16:26,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:16:26,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:16:26,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:16:26,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:16:26,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:16:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:16:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:16:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:16:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:16:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:16:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:16:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:16:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:16:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:16:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:16:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:16:26,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:16:34,358 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:16:34,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:16:34 BoogieIcfgContainer [2018-10-24 22:16:34,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:16:34,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:16:34,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:16:34,366 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:16:34,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:16:24" (1/3) ... [2018-10-24 22:16:34,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97028d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:16:34, skipping insertion in model container [2018-10-24 22:16:34,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:16:26" (2/3) ... [2018-10-24 22:16:34,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97028d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:16:34, skipping insertion in model container [2018-10-24 22:16:34,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:16:34" (3/3) ... [2018-10-24 22:16:34,373 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label13_true-unreach-call.c [2018-10-24 22:16:34,384 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:16:34,394 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:16:34,412 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:16:34,457 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:16:34,457 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:16:34,457 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:16:34,457 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:16:34,458 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:16:34,458 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:16:34,458 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:16:34,458 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:16:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 22:16:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 22:16:34,514 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:34,515 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] [2018-10-24 22:16:34,517 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:34,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:34,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2080894020, now seen corresponding path program 1 times [2018-10-24 22:16:34,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:34,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:34,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:34,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:34,585 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:16:35,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:16:35,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:16:35,134 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:35,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:16:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:16:35,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:16:35,186 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-24 22:16:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:16:48,273 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-24 22:16:48,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:16:48,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-24 22:16:48,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:16:48,326 INFO L225 Difference]: With dead ends: 2974 [2018-10-24 22:16:48,327 INFO L226 Difference]: Without dead ends: 2193 [2018-10-24 22:16:48,347 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:16:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-24 22:16:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-10-24 22:16:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-10-24 22:16:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3506 transitions. [2018-10-24 22:16:48,709 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3506 transitions. Word has length 52 [2018-10-24 22:16:48,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:16:48,710 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 3506 transitions. [2018-10-24 22:16:48,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:16:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3506 transitions. [2018-10-24 22:16:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-24 22:16:48,723 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:48,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:16:48,724 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:48,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:48,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1512413558, now seen corresponding path program 1 times [2018-10-24 22:16:48,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:48,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:48,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:48,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:48,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:49,064 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:16:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:16:49,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:16:49,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:16:49,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:49,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:16:49,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:16:49,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:16:49,102 INFO L87 Difference]: Start difference. First operand 2193 states and 3506 transitions. Second operand 5 states. [2018-10-24 22:16:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:16:58,982 INFO L93 Difference]: Finished difference Result 6600 states and 10738 transitions. [2018-10-24 22:16:58,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:16:58,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-10-24 22:16:58,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:16:59,016 INFO L225 Difference]: With dead ends: 6600 [2018-10-24 22:16:59,017 INFO L226 Difference]: Without dead ends: 4413 [2018-10-24 22:16:59,026 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:16:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-10-24 22:16:59,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-10-24 22:16:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-10-24 22:16:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6712 transitions. [2018-10-24 22:16:59,187 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6712 transitions. Word has length 122 [2018-10-24 22:16:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:16:59,188 INFO L481 AbstractCegarLoop]: Abstraction has 4378 states and 6712 transitions. [2018-10-24 22:16:59,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:16:59,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6712 transitions. [2018-10-24 22:16:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 22:16:59,198 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:16:59,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:16:59,207 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:16:59,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:16:59,207 INFO L82 PathProgramCache]: Analyzing trace with hash -25619309, now seen corresponding path program 1 times [2018-10-24 22:16:59,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:16:59,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:59,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:16:59,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:16:59,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:16:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:16:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:16:59,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:16:59,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:16:59,509 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:16:59,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:16:59,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:16:59,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:16:59,511 INFO L87 Difference]: Start difference. First operand 4378 states and 6712 transitions. Second operand 6 states. [2018-10-24 22:17:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:17:05,194 INFO L93 Difference]: Finished difference Result 11002 states and 16943 transitions. [2018-10-24 22:17:05,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:17:05,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-24 22:17:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:17:05,235 INFO L225 Difference]: With dead ends: 11002 [2018-10-24 22:17:05,235 INFO L226 Difference]: Without dead ends: 6630 [2018-10-24 22:17:05,252 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:17:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-10-24 22:17:05,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-10-24 22:17:05,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-10-24 22:17:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 8773 transitions. [2018-10-24 22:17:05,416 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 8773 transitions. Word has length 149 [2018-10-24 22:17:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:17:05,417 INFO L481 AbstractCegarLoop]: Abstraction has 6590 states and 8773 transitions. [2018-10-24 22:17:05,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:17:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 8773 transitions. [2018-10-24 22:17:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-10-24 22:17:05,420 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:17:05,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:17:05,421 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:17:05,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:17:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash -2048725409, now seen corresponding path program 1 times [2018-10-24 22:17:05,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:17:05,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:05,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:17:05,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:05,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:17:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:17:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:17:05,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:17:05,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:17:05,646 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:17:05,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:17:05,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:17:05,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:17:05,647 INFO L87 Difference]: Start difference. First operand 6590 states and 8773 transitions. Second operand 4 states. [2018-10-24 22:17:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:17:11,446 INFO L93 Difference]: Finished difference Result 13174 states and 17554 transitions. [2018-10-24 22:17:11,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:17:11,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2018-10-24 22:17:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:17:11,471 INFO L225 Difference]: With dead ends: 13174 [2018-10-24 22:17:11,472 INFO L226 Difference]: Without dead ends: 6590 [2018-10-24 22:17:11,494 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:17:11,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2018-10-24 22:17:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2018-10-24 22:17:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-10-24 22:17:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 8069 transitions. [2018-10-24 22:17:11,640 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 8069 transitions. Word has length 159 [2018-10-24 22:17:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:17:11,641 INFO L481 AbstractCegarLoop]: Abstraction has 6590 states and 8069 transitions. [2018-10-24 22:17:11,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:17:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 8069 transitions. [2018-10-24 22:17:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 22:17:11,645 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:17:11,645 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:17:11,646 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:17:11,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:17:11,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1682119955, now seen corresponding path program 1 times [2018-10-24 22:17:11,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:17:11,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:11,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:17:11,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:11,651 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:17:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:17:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 22:17:11,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:17:11,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:17:11,906 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:17:11,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:17:11,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:17:11,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:17:11,909 INFO L87 Difference]: Start difference. First operand 6590 states and 8069 transitions. Second operand 4 states. [2018-10-24 22:17:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:17:20,096 INFO L93 Difference]: Finished difference Result 26000 states and 32600 transitions. [2018-10-24 22:17:20,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:17:20,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2018-10-24 22:17:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:17:20,154 INFO L225 Difference]: With dead ends: 26000 [2018-10-24 22:17:20,154 INFO L226 Difference]: Without dead ends: 19416 [2018-10-24 22:17:20,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:17:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19416 states. [2018-10-24 22:17:20,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19416 to 19416. [2018-10-24 22:17:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19416 states. [2018-10-24 22:17:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19416 states to 19416 states and 22932 transitions. [2018-10-24 22:17:20,524 INFO L78 Accepts]: Start accepts. Automaton has 19416 states and 22932 transitions. Word has length 229 [2018-10-24 22:17:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:17:20,525 INFO L481 AbstractCegarLoop]: Abstraction has 19416 states and 22932 transitions. [2018-10-24 22:17:20,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:17:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 19416 states and 22932 transitions. [2018-10-24 22:17:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-10-24 22:17:20,537 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:17:20,538 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:17:20,538 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:17:20,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:17:20,539 INFO L82 PathProgramCache]: Analyzing trace with hash 782960051, now seen corresponding path program 1 times [2018-10-24 22:17:20,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:17:20,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:20,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:17:20,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:17:20,540 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:17:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:17:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 235 proven. 70 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 22:17:20,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:17:20,980 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:17:20,981 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-10-24 22:17:20,983 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], [1903], [1911], [1919], [1927], [1935], [1939], [1941], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2120], [2121], [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], [2224], [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], [2328], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:17:21,068 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:17:21,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:17:23,941 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:17:23,942 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:17:23,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:17:23,953 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:17:26,707 INFO L232 lantSequenceWeakener]: Weakened 332 states. On average, predicates are now at 77.82% of their original sizes. [2018-10-24 22:17:26,708 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:17:27,118 INFO L413 sIntCurrentIteration]: We have 342 unified AI predicates [2018-10-24 22:17:27,118 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:17:27,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:17:27,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:17:27,119 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:17:27,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:17:27,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:17:27,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:17:27,121 INFO L87 Difference]: Start difference. First operand 19416 states and 22932 transitions. Second operand 7 states. [2018-10-24 22:17:34,607 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:19:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:19:13,662 INFO L93 Difference]: Finished difference Result 39531 states and 46595 transitions. [2018-10-24 22:19:13,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:19:13,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 343 [2018-10-24 22:19:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:19:13,717 INFO L225 Difference]: With dead ends: 39531 [2018-10-24 22:19:13,718 INFO L226 Difference]: Without dead ends: 20121 [2018-10-24 22:19:13,757 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 343 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:19:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20121 states. [2018-10-24 22:19:14,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20121 to 20119. [2018-10-24 22:19:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20119 states. [2018-10-24 22:19:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20119 states to 20119 states and 23647 transitions. [2018-10-24 22:19:14,109 INFO L78 Accepts]: Start accepts. Automaton has 20119 states and 23647 transitions. Word has length 343 [2018-10-24 22:19:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:19:14,109 INFO L481 AbstractCegarLoop]: Abstraction has 20119 states and 23647 transitions. [2018-10-24 22:19:14,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 22:19:14,110 INFO L276 IsEmpty]: Start isEmpty. Operand 20119 states and 23647 transitions. [2018-10-24 22:19:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2018-10-24 22:19:14,122 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:19:14,122 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:19:14,123 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:19:14,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:19:14,123 INFO L82 PathProgramCache]: Analyzing trace with hash 511291718, now seen corresponding path program 1 times [2018-10-24 22:19:14,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:19:14,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:19:14,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:19:14,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:19:14,125 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:19:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:19:14,727 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:19:14,939 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:19:15,149 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:19:15,582 WARN L179 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 22:19:15,877 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-24 22:19:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 194 proven. 219 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:19:16,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:19:16,258 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:19:16,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 435 with the following transitions: [2018-10-24 22:19:16,259 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], [1903], [1911], [1919], [1927], [1935], [1939], [1941], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2188], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [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], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:19:16,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:19:16,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:19:26,320 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:19:26,320 INFO L272 AbstractInterpreter]: Visited 196 different actions 386 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:19:26,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:19:26,330 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:19:29,119 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 78.27% of their original sizes. [2018-10-24 22:19:29,119 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 22:20:04,822 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:20:04,826 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:20:04,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:20:04 BoogieIcfgContainer [2018-10-24 22:20:04,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:20:04,827 INFO L168 Benchmark]: Toolchain (without parser) took 220395.97 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -165.5 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,829 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:20:04,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1722.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 382.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,831 INFO L168 Benchmark]: Boogie Preprocessor took 204.72 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,831 INFO L168 Benchmark]: RCFGBuilder took 7616.49 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: 513.8 MB). Peak memory consumption was 513.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,832 INFO L168 Benchmark]: TraceAbstraction took 210464.26 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 103.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 22:20:04,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 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 1722.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 382.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 204.72 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7616.49 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: 513.8 MB). Peak memory consumption was 513.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210464.26 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 103.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 144). Cancelled while BasicCegarLoop was analyzing trace of length 435 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 210.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 149.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2959 SDtfs, 10769 SDslu, 1082 SDs, 0 SdLazy, 23833 SolverSat, 5037 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 102.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 378 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20119occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966269284712481 AbsIntWeakeningRatio, 0.08258064516129032 AbsIntAvgWeakeningVarsNumRemoved, 758.7367741935484 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 77 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1048 ConstructedInterpolants, 0 QuantifiedInterpolants, 574398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 599/669 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown