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/Problem17_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:00:51,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:00:51,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:00:51,510 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:00:51,510 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:00:51,511 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:00:51,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:00:51,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:00:51,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:00:51,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:00:51,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:00:51,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:00:51,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:00:51,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:00:51,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:00:51,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:00:51,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:00:51,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:00:51,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:00:51,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:00:51,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:00:51,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:00:51,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:00:51,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:00:51,534 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:00:51,534 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:00:51,535 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:00:51,536 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:00:51,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:00:51,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:00:51,539 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:00:51,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:00:51,540 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:00:51,540 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:00:51,541 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:00:51,542 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:00:51,542 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:00:51,559 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:00:51,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:00:51,560 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:00:51,561 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:00:51,561 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:00:51,561 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:00:51,561 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:00:51,561 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:00:51,561 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:00:51,562 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:00:51,562 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:00:51,563 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:00:51,563 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:00:51,564 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:00:51,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:00:51,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:00:51,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:00:51,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:00:51,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:00:51,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:00:51,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:00:51,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:00:51,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:00:51,568 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:00:51,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:00:51,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:00:51,568 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:00:51,568 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:00:51,569 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:00:51,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:00:51,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:00:51,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:00:51,672 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:00:51,673 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:00:51,673 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label59_true-unreach-call.c [2018-11-07 04:00:51,744 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d07586d/0550feb6914e4879941e54a87dd3c058/FLAGf050dccd6 [2018-11-07 04:00:52,542 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:00:52,544 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label59_true-unreach-call.c [2018-11-07 04:00:52,576 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d07586d/0550feb6914e4879941e54a87dd3c058/FLAGf050dccd6 [2018-11-07 04:00:52,598 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d07586d/0550feb6914e4879941e54a87dd3c058 [2018-11-07 04:00:52,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:00:52,615 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:00:52,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:00:52,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:00:52,624 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:00:52,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:00:52" (1/1) ... [2018-11-07 04:00:52,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c1454e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:52, skipping insertion in model container [2018-11-07 04:00:52,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:00:52" (1/1) ... [2018-11-07 04:00:52,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:00:52,777 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:00:53,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:00:53,729 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:00:54,160 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:00:54,185 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:00:54,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54 WrapperNode [2018-11-07 04:00:54,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:00:54,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:00:54,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:00:54,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:00:54,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:00:54,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:00:54,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:00:54,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:00:54,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... [2018-11-07 04:00:54,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:00:54,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:00:54,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:00:54,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:00:54,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:00:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:00:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:00:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:00:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:00:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:00:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:00:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:00:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:00:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:00:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:00:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:01:03,864 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:01:03,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:01:03 BoogieIcfgContainer [2018-11-07 04:01:03,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:01:03,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:01:03,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:01:03,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:01:03,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:00:52" (1/3) ... [2018-11-07 04:01:03,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500e02cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:01:03, skipping insertion in model container [2018-11-07 04:01:03,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:54" (2/3) ... [2018-11-07 04:01:03,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500e02cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:01:03, skipping insertion in model container [2018-11-07 04:01:03,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:01:03" (3/3) ... [2018-11-07 04:01:03,874 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label59_true-unreach-call.c [2018-11-07 04:01:03,885 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:01:03,896 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:01:03,914 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:01:03,957 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:01:03,957 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:01:03,957 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:01:03,958 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:01:03,958 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:01:03,958 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:01:03,958 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:01:03,958 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:01:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 04:01:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-07 04:01:04,005 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:01:04,006 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] [2018-11-07 04:01:04,009 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:01:04,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:01:04,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1188687990, now seen corresponding path program 1 times [2018-11-07 04:01:04,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:01:04,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:04,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:01:04,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:04,075 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:01:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:01:04,544 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 04:01:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:01:04,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:01:04,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:01:04,564 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:01:04,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:01:04,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:01:04,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:01:04,612 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 04:01:17,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:01:17,633 INFO L93 Difference]: Finished difference Result 2164 states and 4009 transitions. [2018-11-07 04:01:17,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:01:17,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-11-07 04:01:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:01:17,689 INFO L225 Difference]: With dead ends: 2164 [2018-11-07 04:01:17,690 INFO L226 Difference]: Without dead ends: 1554 [2018-11-07 04:01:17,704 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:01:17,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2018-11-07 04:01:17,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1051. [2018-11-07 04:01:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-11-07 04:01:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1880 transitions. [2018-11-07 04:01:17,867 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1880 transitions. Word has length 39 [2018-11-07 04:01:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:01:17,868 INFO L480 AbstractCegarLoop]: Abstraction has 1051 states and 1880 transitions. [2018-11-07 04:01:17,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:01:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1880 transitions. [2018-11-07 04:01:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-07 04:01:17,875 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:01:17,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:01:17,876 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:01:17,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:01:17,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2141434535, now seen corresponding path program 1 times [2018-11-07 04:01:17,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:01:17,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:17,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:01:17,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:17,879 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:01:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:01:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:01:18,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:01:18,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:01:18,214 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:01:18,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:01:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:01:18,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:01:18,217 INFO L87 Difference]: Start difference. First operand 1051 states and 1880 transitions. Second operand 5 states. [2018-11-07 04:01:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:01:25,758 INFO L93 Difference]: Finished difference Result 3028 states and 5532 transitions. [2018-11-07 04:01:25,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:01:25,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-11-07 04:01:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:01:25,777 INFO L225 Difference]: With dead ends: 3028 [2018-11-07 04:01:25,777 INFO L226 Difference]: Without dead ends: 1983 [2018-11-07 04:01:25,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:01:25,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-11-07 04:01:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1957. [2018-11-07 04:01:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-11-07 04:01:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3236 transitions. [2018-11-07 04:01:25,864 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3236 transitions. Word has length 111 [2018-11-07 04:01:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:01:25,865 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3236 transitions. [2018-11-07 04:01:25,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:01:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3236 transitions. [2018-11-07 04:01:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-07 04:01:25,870 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:01:25,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:01:25,871 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:01:25,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:01:25,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1471325761, now seen corresponding path program 1 times [2018-11-07 04:01:25,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:01:25,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:25,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:01:25,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:01:25,873 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:01:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:01:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:01:26,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:01:26,191 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:01:26,193 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-11-07 04:01:26,195 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [922], [924], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 04:01:26,285 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:01:26,286 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:01:27,836 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:01:48,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:01:48,928 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 04:01:48,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:01:48,943 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:01:50,900 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 82.64% of their original sizes. [2018-11-07 04:01:50,900 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:02:28,786 INFO L415 sIntCurrentIteration]: We unified 113 AI predicates to 113 [2018-11-07 04:02:28,786 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:02:28,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:02:28,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [7] total 27 [2018-11-07 04:02:28,788 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:02:28,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 04:02:28,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 04:02:28,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2018-11-07 04:02:28,789 INFO L87 Difference]: Start difference. First operand 1957 states and 3236 transitions. Second operand 22 states. Received shutdown request... [2018-11-07 04:04:57,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 04:04:57,859 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:04:57,864 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:04:57,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:04:57 BoogieIcfgContainer [2018-11-07 04:04:57,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:04:57,866 INFO L168 Benchmark]: Toolchain (without parser) took 245251.94 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,867 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:04:57,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1570.58 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -948.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,870 INFO L168 Benchmark]: Boogie Preprocessor took 212.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,870 INFO L168 Benchmark]: RCFGBuilder took 9176.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.9 MB). Peak memory consumption was 450.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,871 INFO L168 Benchmark]: TraceAbstraction took 233998.31 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 596.3 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:57,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 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 1570.58 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 288.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -948.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9176.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.9 MB). Peak memory consumption was 450.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233998.31 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 596.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 104). Cancelled while BasicCegarLoop was constructing difference of abstraction (1957states) and FLOYD_HOARE automaton (currently 23 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (754 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 233.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 169.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 545 SDtfs, 4935 SDslu, 482 SDs, 0 SdLazy, 5565 SolverSat, 1836 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 67.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 140 GetRequests, 84 SyntacticMatches, 16 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 47.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1957occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9921170864533697 AbsIntWeakeningRatio, 0.18584070796460178 AbsIntAvgWeakeningVarsNumRemoved, 743.3982300884956 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 529 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 79199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 32/64 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown