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/Problem03_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:43:30,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:43:30,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:43:30,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:43:30,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:43:30,411 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:43:30,412 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:43:30,414 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:43:30,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:43:30,416 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:43:30,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:43:30,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:43:30,418 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:43:30,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:43:30,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:43:30,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:43:30,422 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:43:30,425 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:43:30,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:43:30,436 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:43:30,438 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:43:30,439 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:43:30,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:43:30,451 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 [2018-10-23 23:43:30,466 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:43:30,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:43:30,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:43:30,467 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:43:30,467 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:43:30,468 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:43:30,468 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:43:30,468 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:43:30,468 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:43:30,468 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:43:30,469 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:43:30,469 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:43:30,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:43:30,470 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:43:30,470 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:43:30,470 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:43:30,470 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:43:30,470 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:43:30,471 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:43:30,471 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:43:30,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:43:30,471 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:43:30,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:43:30,472 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:43:30,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:43:30,472 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:43:30,472 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:43:30,472 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:43:30,473 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:43:30,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:43:30,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:43:30,473 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:43:30,473 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:43:30,474 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:43:30,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:43:30,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:43:30,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:43:30,544 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:43:30,544 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:43:30,545 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label48_true-unreach-call.c [2018-10-23 23:43:30,620 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f214210c6/bd6ad8916c9f41eeba0a228dd9ac33ed/FLAG881eb1752 [2018-10-23 23:43:31,335 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:43:31,336 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label48_true-unreach-call.c [2018-10-23 23:43:31,356 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f214210c6/bd6ad8916c9f41eeba0a228dd9ac33ed/FLAG881eb1752 [2018-10-23 23:43:31,378 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f214210c6/bd6ad8916c9f41eeba0a228dd9ac33ed [2018-10-23 23:43:31,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:43:31,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:43:31,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:43:31,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:43:31,402 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:43:31,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:31" (1/1) ... [2018-10-23 23:43:31,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1518352a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:31, skipping insertion in model container [2018-10-23 23:43:31,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:31" (1/1) ... [2018-10-23 23:43:31,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:43:31,516 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:43:32,349 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:43:32,354 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:43:32,569 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:43:32,591 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:43:32,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32 WrapperNode [2018-10-23 23:43:32,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:43:32,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:43:32,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:43:32,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:43:32,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:43:32,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:43:32,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:43:32,886 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:43:32,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:32,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:33,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:33,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (1/1) ... [2018-10-23 23:43:33,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:43:33,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:43:33,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:43:33,033 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:43:33,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (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 [2018-10-23 23:43:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:43:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:43:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:43:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:43:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:43:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:43:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:43:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:43:38,177 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:43:38,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:38 BoogieIcfgContainer [2018-10-23 23:43:38,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:43:38,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:43:38,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:43:38,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:43:38,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:43:31" (1/3) ... [2018-10-23 23:43:38,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f55489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:38, skipping insertion in model container [2018-10-23 23:43:38,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:32" (2/3) ... [2018-10-23 23:43:38,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f55489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:38, skipping insertion in model container [2018-10-23 23:43:38,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:38" (3/3) ... [2018-10-23 23:43:38,192 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label48_true-unreach-call.c [2018-10-23 23:43:38,204 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:43:38,225 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:43:38,243 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:43:38,300 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:43:38,300 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:43:38,300 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:43:38,301 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:43:38,301 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:43:38,301 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:43:38,301 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:43:38,301 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:43:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 23:43:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-23 23:43:38,372 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:43:38,378 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:43:38,380 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:43:38,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:43:38,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1967383007, now seen corresponding path program 1 times [2018-10-23 23:43:38,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:43:38,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:38,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:38,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:38,460 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:43:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:39,339 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 23:43:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:43:39,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:43:39,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:43:39,604 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:43:39,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:43:39,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:43:39,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:43:39,630 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 23:43:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:43:43,022 INFO L93 Difference]: Finished difference Result 1058 states and 1911 transitions. [2018-10-23 23:43:43,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:43:43,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2018-10-23 23:43:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:43:43,053 INFO L225 Difference]: With dead ends: 1058 [2018-10-23 23:43:43,053 INFO L226 Difference]: Without dead ends: 740 [2018-10-23 23:43:43,062 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:43:43,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2018-10-23 23:43:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 525. [2018-10-23 23:43:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-10-23 23:43:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 877 transitions. [2018-10-23 23:43:43,156 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 877 transitions. Word has length 190 [2018-10-23 23:43:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:43:43,158 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 877 transitions. [2018-10-23 23:43:43,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:43:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 877 transitions. [2018-10-23 23:43:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-23 23:43:43,168 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:43:43,169 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:43:43,169 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:43:43,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:43:43,170 INFO L82 PathProgramCache]: Analyzing trace with hash 805361829, now seen corresponding path program 1 times [2018-10-23 23:43:43,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:43:43,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:43,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:43,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:43,175 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:43:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:43:43,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:43:43,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:43:43,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:43:43,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:43:43,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:43:43,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:43:43,685 INFO L87 Difference]: Start difference. First operand 525 states and 877 transitions. Second operand 3 states. [2018-10-23 23:43:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:43:45,913 INFO L93 Difference]: Finished difference Result 1473 states and 2531 transitions. [2018-10-23 23:43:45,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:43:45,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2018-10-23 23:43:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:43:45,923 INFO L225 Difference]: With dead ends: 1473 [2018-10-23 23:43:45,923 INFO L226 Difference]: Without dead ends: 954 [2018-10-23 23:43:45,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:43:45,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2018-10-23 23:43:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 953. [2018-10-23 23:43:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-10-23 23:43:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1506 transitions. [2018-10-23 23:43:45,975 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1506 transitions. Word has length 203 [2018-10-23 23:43:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:43:45,976 INFO L481 AbstractCegarLoop]: Abstraction has 953 states and 1506 transitions. [2018-10-23 23:43:45,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:43:45,977 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1506 transitions. [2018-10-23 23:43:45,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-23 23:43:45,982 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:43:45,982 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:43:45,983 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:43:45,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:43:45,983 INFO L82 PathProgramCache]: Analyzing trace with hash 190939521, now seen corresponding path program 1 times [2018-10-23 23:43:45,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:43:45,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:45,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:45,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:45,985 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:43:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:46,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:43:46,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:43:46,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:43:46,284 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:43:46,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:43:46,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:43:46,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:43:46,289 INFO L87 Difference]: Start difference. First operand 953 states and 1506 transitions. Second operand 3 states. [2018-10-23 23:43:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:43:49,113 INFO L93 Difference]: Finished difference Result 2750 states and 4459 transitions. [2018-10-23 23:43:49,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:43:49,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2018-10-23 23:43:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:43:49,139 INFO L225 Difference]: With dead ends: 2750 [2018-10-23 23:43:49,139 INFO L226 Difference]: Without dead ends: 1803 [2018-10-23 23:43:49,149 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:43:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2018-10-23 23:43:49,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1786. [2018-10-23 23:43:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2018-10-23 23:43:49,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2785 transitions. [2018-10-23 23:43:49,232 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2785 transitions. Word has length 205 [2018-10-23 23:43:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:43:49,233 INFO L481 AbstractCegarLoop]: Abstraction has 1786 states and 2785 transitions. [2018-10-23 23:43:49,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:43:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2785 transitions. [2018-10-23 23:43:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-23 23:43:49,243 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:43:49,243 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:43:49,243 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:43:49,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:43:49,244 INFO L82 PathProgramCache]: Analyzing trace with hash -332724808, now seen corresponding path program 1 times [2018-10-23 23:43:49,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:43:49,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:49,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:49,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:49,246 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:43:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:49,523 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 23:43:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:43:49,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:43:49,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:43:49,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:43:49,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:43:49,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:43:49,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:43:49,745 INFO L87 Difference]: Start difference. First operand 1786 states and 2785 transitions. Second operand 6 states. [2018-10-23 23:43:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:43:52,379 INFO L93 Difference]: Finished difference Result 5463 states and 9326 transitions. [2018-10-23 23:43:52,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 23:43:52,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-10-23 23:43:52,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:43:52,416 INFO L225 Difference]: With dead ends: 5463 [2018-10-23 23:43:52,416 INFO L226 Difference]: Without dead ends: 3683 [2018-10-23 23:43:52,426 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:43:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2018-10-23 23:43:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3573. [2018-10-23 23:43:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2018-10-23 23:43:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 5686 transitions. [2018-10-23 23:43:52,560 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 5686 transitions. Word has length 208 [2018-10-23 23:43:52,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:43:52,561 INFO L481 AbstractCegarLoop]: Abstraction has 3573 states and 5686 transitions. [2018-10-23 23:43:52,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:43:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 5686 transitions. [2018-10-23 23:43:52,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-10-23 23:43:52,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:43:52,578 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:43:52,578 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:43:52,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:43:52,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1900171544, now seen corresponding path program 1 times [2018-10-23 23:43:52,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:43:52,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:52,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:43:52,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:43:52,580 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:43:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:43:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:43:52,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:43:52,819 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:43:52,820 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-10-23 23:43:52,822 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [36], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [981], [983], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 23:43:52,931 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:43:52,931 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 23:48:06,057 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 23:48:06,058 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 23:48:06,059 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 23:48:06,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:48:06,060 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:48:06,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:48:06,073 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 23:48:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:48:06,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 23:48:06,365 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 23:48:06,567 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 23:48:06,567 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:48:06,572 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:48:06,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:48:06 BoogieIcfgContainer [2018-10-23 23:48:06,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:48:06,573 INFO L168 Benchmark]: Toolchain (without parser) took 275177.81 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -913.5 MB). Peak memory consumption was 187.0 MB. Max. memory is 7.1 GB. [2018-10-23 23:48:06,574 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-23 23:48:06,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1194.66 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-23 23:48:06,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:48:06,577 INFO L168 Benchmark]: Boogie Preprocessor took 146.59 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-23 23:48:06,577 INFO L168 Benchmark]: RCFGBuilder took 5145.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 267.1 MB). Peak memory consumption was 267.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:48:06,578 INFO L168 Benchmark]: TraceAbstraction took 268393.45 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 335.5 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -379.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:48:06,583 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1194.66 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 292.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.59 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5145.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 267.1 MB). Peak memory consumption was 267.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268393.45 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 335.5 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -379.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1584]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1584). Cancelled while BasicCegarLoop was analyzing trace of length 224 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 268.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 11.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1403 SDtfs, 1791 SDslu, 539 SDs, 0 SdLazy, 3690 SolverSat, 888 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3573occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 253.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 343 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 806 NumberOfCodeBlocks, 806 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 614089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 37/37 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown