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/Problem11_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:01:30,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:01:30,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:01:30,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:01:30,405 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:01:30,406 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:01:30,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:01:30,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:01:30,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:01:30,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:01:30,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:01:30,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:01:30,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:01:30,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:01:30,416 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:01:30,417 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:01:30,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:01:30,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:01:30,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:01:30,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:01:30,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:01:30,427 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:01:30,429 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 03:01:30,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 03:01:30,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 03:01:30,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 03:01:30,432 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 03:01:30,433 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 03:01:30,434 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 03:01:30,435 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 03:01:30,435 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 03:01:30,436 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 03:01:30,436 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:01:30,437 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:01:30,438 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:01:30,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:01:30,439 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 03:01:30,465 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:01:30,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:01:30,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:01:30,467 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:01:30,467 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:01:30,467 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:01:30,467 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:01:30,471 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:01:30,471 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:01:30,471 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:01:30,471 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:01:30,472 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:01:30,472 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:01:30,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:01:30,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:01:30,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:01:30,473 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:01:30,473 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:01:30,474 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:01:30,474 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:01:30,474 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:01:30,474 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:01:30,474 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:01:30,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:01:30,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:01:30,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:01:30,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:01:30,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:01:30,477 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:01:30,478 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:01:30,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:01:30,478 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:01:30,479 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:01:30,479 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:01:30,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:01:30,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:01:30,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:01:30,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:01:30,580 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:01:30,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-11-07 03:01:30,646 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649d83269/e0f48570afb7421db74f81ea1c587460/FLAGb87ef29f7 [2018-11-07 03:01:31,318 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:01:31,319 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label50_true-unreach-call.c [2018-11-07 03:01:31,345 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649d83269/e0f48570afb7421db74f81ea1c587460/FLAGb87ef29f7 [2018-11-07 03:01:31,363 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649d83269/e0f48570afb7421db74f81ea1c587460 [2018-11-07 03:01:31,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:01:31,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:01:31,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:01:31,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:01:31,381 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:01:31,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:01:31" (1/1) ... [2018-11-07 03:01:31,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e69057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:31, skipping insertion in model container [2018-11-07 03:01:31,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:01:31" (1/1) ... [2018-11-07 03:01:31,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:01:31,473 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:01:32,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:01:32,088 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:01:32,271 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:01:32,291 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:01:32,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32 WrapperNode [2018-11-07 03:01:32,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:01:32,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:01:32,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:01:32,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:01:32,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:01:32,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:01:32,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:01:32,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:01:32,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (1/1) ... [2018-11-07 03:01:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:01:32,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:01:32,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:01:32,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:01:32,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (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 03:01:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:01:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:01:32,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:01:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:01:32,736 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:01:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:01:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:01:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:01:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:01:38,315 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:01:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:01:38 BoogieIcfgContainer [2018-11-07 03:01:38,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:01:38,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:01:38,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:01:38,323 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:01:38,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:01:31" (1/3) ... [2018-11-07 03:01:38,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3863c14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:01:38, skipping insertion in model container [2018-11-07 03:01:38,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:01:32" (2/3) ... [2018-11-07 03:01:38,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3863c14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:01:38, skipping insertion in model container [2018-11-07 03:01:38,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:01:38" (3/3) ... [2018-11-07 03:01:38,327 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label50_true-unreach-call.c [2018-11-07 03:01:38,339 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:01:38,349 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:01:38,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:01:38,409 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:01:38,410 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:01:38,410 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:01:38,410 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:01:38,410 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:01:38,411 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:01:38,411 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:01:38,411 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:01:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 03:01:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-07 03:01:38,457 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:01:38,458 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:01:38,461 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:01:38,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:38,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2098834559, now seen corresponding path program 1 times [2018-11-07 03:01:38,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:01:38,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:38,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:01:38,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:38,533 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:01:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:01:39,038 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 03:01:39,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:01:39,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:01:39,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:01:39,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:01:39,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:01:39,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:01:39,073 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 03:01:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:01:42,649 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-11-07 03:01:42,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:01:42,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-07 03:01:42,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:01:42,675 INFO L225 Difference]: With dead ends: 1001 [2018-11-07 03:01:42,676 INFO L226 Difference]: Without dead ends: 702 [2018-11-07 03:01:42,693 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:01:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-11-07 03:01:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-11-07 03:01:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-11-07 03:01:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-11-07 03:01:42,801 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 43 [2018-11-07 03:01:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:01:42,803 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-11-07 03:01:42,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:01:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-11-07 03:01:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 03:01:42,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:01:42,819 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:01:42,819 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:01:42,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash 275725715, now seen corresponding path program 1 times [2018-11-07 03:01:42,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:01:42,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:42,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:01:42,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:42,823 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:01:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:01:43,139 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:01:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:01:43,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:01:43,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:01:43,254 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:01:43,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:01:43,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:01:43,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:01:43,257 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-11-07 03:01:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:01:48,707 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-11-07 03:01:48,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:01:48,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-11-07 03:01:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:01:48,724 INFO L225 Difference]: With dead ends: 2534 [2018-11-07 03:01:48,724 INFO L226 Difference]: Without dead ends: 1841 [2018-11-07 03:01:48,732 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:01:48,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-11-07 03:01:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-11-07 03:01:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-11-07 03:01:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-11-07 03:01:48,806 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 116 [2018-11-07 03:01:48,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:01:48,807 INFO L480 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-11-07 03:01:48,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:01:48,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-11-07 03:01:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-07 03:01:48,811 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:01:48,811 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:01:48,812 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:01:48,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1222906116, now seen corresponding path program 1 times [2018-11-07 03:01:48,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:01:48,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:48,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:01:48,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:48,817 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:01:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:01:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:01:49,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:01:49,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 03:01:49,007 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:01:49,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 03:01:49,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 03:01:49,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:01:49,009 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-11-07 03:01:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:01:51,478 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-11-07 03:01:51,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 03:01:51,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-11-07 03:01:51,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:01:51,507 INFO L225 Difference]: With dead ends: 4796 [2018-11-07 03:01:51,507 INFO L226 Difference]: Without dead ends: 2987 [2018-11-07 03:01:51,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 03:01:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-11-07 03:01:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-11-07 03:01:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-11-07 03:01:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-11-07 03:01:51,611 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 117 [2018-11-07 03:01:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:01:51,612 INFO L480 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-11-07 03:01:51,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 03:01:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-11-07 03:01:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 03:01:51,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:01:51,621 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:01:51,621 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:01:51,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:51,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1567634535, now seen corresponding path program 1 times [2018-11-07 03:01:51,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:01:51,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:51,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:01:51,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:51,624 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:01:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:01:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:01:51,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:01:51,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:01:51,865 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:01:51,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:01:51,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:01:51,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:01:51,866 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-11-07 03:01:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:01:55,563 INFO L93 Difference]: Finished difference Result 11406 states and 20946 transitions. [2018-11-07 03:01:55,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 03:01:55,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-11-07 03:01:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:01:55,681 INFO L225 Difference]: With dead ends: 11406 [2018-11-07 03:01:55,682 INFO L226 Difference]: Without dead ends: 8442 [2018-11-07 03:01:55,772 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:01:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2018-11-07 03:01:56,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7646. [2018-11-07 03:01:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7646 states. [2018-11-07 03:01:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7646 states to 7646 states and 11153 transitions. [2018-11-07 03:01:56,127 INFO L78 Accepts]: Start accepts. Automaton has 7646 states and 11153 transitions. Word has length 142 [2018-11-07 03:01:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:01:56,127 INFO L480 AbstractCegarLoop]: Abstraction has 7646 states and 11153 transitions. [2018-11-07 03:01:56,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:01:56,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7646 states and 11153 transitions. [2018-11-07 03:01:56,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-07 03:01:56,139 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:01:56,139 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:01:56,140 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:01:56,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:56,140 INFO L82 PathProgramCache]: Analyzing trace with hash 961249486, now seen corresponding path program 1 times [2018-11-07 03:01:56,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:01:56,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:56,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:01:56,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:01:56,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:01:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:01:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:01:56,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:01:56,409 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:01:56,410 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-11-07 03:01:56,413 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 03:01:56,489 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:01:56,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:01:58,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:01:58,271 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 03:01:58,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:01:58,282 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:02:00,883 INFO L227 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 73.59% of their original sizes. [2018-11-07 03:02:00,883 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:02:01,380 INFO L415 sIntCurrentIteration]: We unified 189 AI predicates to 189 [2018-11-07 03:02:01,380 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:02:01,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:02:01,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 03:02:01,382 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:02:01,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:02:01,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:02:01,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:02:01,383 INFO L87 Difference]: Start difference. First operand 7646 states and 11153 transitions. Second operand 7 states. [2018-11-07 03:02:04,863 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:02:52,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:02:52,897 INFO L93 Difference]: Finished difference Result 15478 states and 22519 transitions. [2018-11-07 03:02:52,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:02:52,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2018-11-07 03:02:52,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:02:52,947 INFO L225 Difference]: With dead ends: 15478 [2018-11-07 03:02:52,948 INFO L226 Difference]: Without dead ends: 7838 [2018-11-07 03:02:52,981 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:02:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2018-11-07 03:02:53,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7836. [2018-11-07 03:02:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7836 states. [2018-11-07 03:02:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 11354 transitions. [2018-11-07 03:02:53,228 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 11354 transitions. Word has length 190 [2018-11-07 03:02:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:02:53,228 INFO L480 AbstractCegarLoop]: Abstraction has 7836 states and 11354 transitions. [2018-11-07 03:02:53,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:02:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 11354 transitions. [2018-11-07 03:02:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-11-07 03:02:53,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:02:53,239 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:02:53,240 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:02:53,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:02:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1177715268, now seen corresponding path program 1 times [2018-11-07 03:02:53,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:02:53,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:02:53,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:02:53,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:02:53,243 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:02:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:02:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:02:53,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:02:53,766 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:02:53,766 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-11-07 03:02:53,767 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 03:02:53,774 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:02:53,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:02:56,971 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:03:12,068 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 03:03:12,068 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 03:03:12,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:12,081 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 03:03:12,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:03:12,081 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 03:03:12,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:12,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 03:03:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:12,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 03:03:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:03:12,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 03:03:13,564 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:03:13,586 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 03:03:13,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 03:03:13,586 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 03:03:13,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 03:03:13,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 03:03:13,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:03:13,588 INFO L87 Difference]: Start difference. First operand 7836 states and 11354 transitions. Second operand 9 states. [2018-11-07 03:03:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:03:22,364 INFO L93 Difference]: Finished difference Result 21953 states and 42249 transitions. [2018-11-07 03:03:22,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 03:03:22,365 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2018-11-07 03:03:22,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:03:22,508 INFO L225 Difference]: With dead ends: 21953 [2018-11-07 03:03:22,508 INFO L226 Difference]: Without dead ends: 14313 [2018-11-07 03:03:22,652 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 03:03:22,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14313 states. [2018-11-07 03:03:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14313 to 14154. [2018-11-07 03:03:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14154 states. [2018-11-07 03:03:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14154 states to 14154 states and 24690 transitions. [2018-11-07 03:03:23,435 INFO L78 Accepts]: Start accepts. Automaton has 14154 states and 24690 transitions. Word has length 247 [2018-11-07 03:03:23,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:03:23,435 INFO L480 AbstractCegarLoop]: Abstraction has 14154 states and 24690 transitions. [2018-11-07 03:03:23,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 03:03:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 14154 states and 24690 transitions. [2018-11-07 03:03:23,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-07 03:03:23,448 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:03:23,449 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:03:23,450 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:03:23,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:23,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1757010189, now seen corresponding path program 1 times [2018-11-07 03:03:23,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:03:23,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:23,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:03:23,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:03:23,452 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:03:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:03:23,976 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 75 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 03:03:23,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:03:23,976 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:03:23,976 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-07 03:03:23,977 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 03:03:23,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:03:23,983 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:03:28,237 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:03:45,905 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:03:45,905 INFO L272 AbstractInterpreter]: Visited 135 different actions 393 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 03:03:45,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:03:45,911 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:03:49,638 INFO L227 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 76.42% of their original sizes. [2018-11-07 03:03:49,638 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:04:16,890 INFO L415 sIntCurrentIteration]: We unified 264 AI predicates to 264 [2018-11-07 03:04:16,891 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:04:16,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:04:16,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [9] total 27 [2018-11-07 03:04:16,891 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:04:16,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 03:04:16,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 03:04:16,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-11-07 03:04:16,893 INFO L87 Difference]: Start difference. First operand 14154 states and 24690 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 03:05:17,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 03:05:17,295 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:05:17,300 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:05:17,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:05:17 BoogieIcfgContainer [2018-11-07 03:05:17,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:05:17,301 INFO L168 Benchmark]: Toolchain (without parser) took 225927.00 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 129.2 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-07 03:05:17,303 INFO L168 Benchmark]: CDTParser took 0.20 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 03:05:17,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-07 03:05:17,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 179.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2018-11-07 03:05:17,305 INFO L168 Benchmark]: Boogie Preprocessor took 180.54 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:05:17,306 INFO L168 Benchmark]: RCFGBuilder took 5664.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:05:17,306 INFO L168 Benchmark]: TraceAbstraction took 218982.02 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 724.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 03:05:17,311 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 915.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 179.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.54 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5664.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218982.02 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 724.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (14154states) and FLOYD_HOARE automaton (currently 12 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (131 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 218.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 136.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1448 SDtfs, 5817 SDslu, 1511 SDs, 0 SdLazy, 11332 SolverSat, 2566 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1012 GetRequests, 912 SyntacticMatches, 30 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 30.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14154occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 42.1s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9955499491923336 AbsIntWeakeningRatio, 0.12362030905077263 AbsIntAvgWeakeningVarsNumRemoved, 1055.9580573951434 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1367 NumberOfCodeBlocks, 1367 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1605 ConstructedInterpolants, 0 QuantifiedInterpolants, 994751 SizeOfPredicates, 0 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 768/851 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown