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_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:00:13,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:00:13,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:00:13,544 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:00:13,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:00:13,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:00:13,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:00:13,549 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:00:13,550 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:00:13,551 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:00:13,552 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:00:13,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:00:13,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:00:13,554 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:00:13,556 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:00:13,556 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:00:13,557 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:00:13,559 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:00:13,561 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:00:13,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:00:13,564 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:00:13,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:00:13,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:00:13,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:00:13,568 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:00:13,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:00:13,570 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:00:13,571 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:00:13,572 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:00:13,573 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:00:13,573 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:00:13,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:00:13,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:00:13,574 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:00:13,575 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:00:13,576 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:00:13,576 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 04:00:13,592 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:00:13,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:00:13,594 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:00:13,594 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:00:13,594 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:00:13,594 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:00:13,595 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:00:13,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:00:13,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:00:13,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:00:13,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:00:13,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:00:13,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:00:13,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:00:13,598 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:00:13,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:00:13,598 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:00:13,598 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:00:13,598 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:00:13,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:00:13,599 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:00:13,599 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:00:13,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:00:13,599 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:00:13,600 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:00:13,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:00:13,600 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:00:13,600 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:00:13,600 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:00:13,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:00:13,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:00:13,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:00:13,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:00:13,662 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:00:13,663 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-11-07 04:00:13,719 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d452e16c8/838f7b664129499483dd67b749b4aae5/FLAG14c0d3bb7 [2018-11-07 04:00:14,399 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:00:14,400 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-11-07 04:00:14,433 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d452e16c8/838f7b664129499483dd67b749b4aae5/FLAG14c0d3bb7 [2018-11-07 04:00:14,450 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d452e16c8/838f7b664129499483dd67b749b4aae5 [2018-11-07 04:00:14,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:00:14,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:00:14,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:00:14,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:00:14,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:00:14,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:00:14" (1/1) ... [2018-11-07 04:00:14,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8c2953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:14, skipping insertion in model container [2018-11-07 04:00:14,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:00:14" (1/1) ... [2018-11-07 04:00:14,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:00:14,603 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:00:15,730 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:00:15,736 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:00:16,206 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:00:16,230 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:00:16,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16 WrapperNode [2018-11-07 04:00:16,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:00:16,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:00:16,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:00:16,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:00:16,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:00:16,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:00:16,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:00:16,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:00:16,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (1/1) ... [2018-11-07 04:00:16,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:00:16,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:00:16,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:00:16,706 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:00:16,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (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 04:00:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:00:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:00:16,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:00:16,778 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:00:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:00:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:00:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:00:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:00:16,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:00:16,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:00:16,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:00:25,681 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:00:25,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:00:25 BoogieIcfgContainer [2018-11-07 04:00:25,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:00:25,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:00:25,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:00:25,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:00:25,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:00:14" (1/3) ... [2018-11-07 04:00:25,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c5dc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:00:25, skipping insertion in model container [2018-11-07 04:00:25,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:00:16" (2/3) ... [2018-11-07 04:00:25,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c5dc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:00:25, skipping insertion in model container [2018-11-07 04:00:25,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:00:25" (3/3) ... [2018-11-07 04:00:25,692 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label51_true-unreach-call.c [2018-11-07 04:00:25,704 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:00:25,719 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:00:25,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:00:25,798 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:00:25,798 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:00:25,799 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:00:25,799 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:00:25,799 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:00:25,799 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:00:25,799 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:00:25,800 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:00:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 04:00:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-07 04:00:25,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:00:25,854 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] [2018-11-07 04:00:25,856 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:00:25,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:00:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2022037956, now seen corresponding path program 1 times [2018-11-07 04:00:25,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:00:25,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:25,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:00:25,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:25,912 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:00:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:00:26,447 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 04:00:26,466 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 04:00:26,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:00:26,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:00:26,469 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:00:26,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:00:26,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:00:26,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:00:26,497 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 04:00:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:00:38,063 INFO L93 Difference]: Finished difference Result 2164 states and 4009 transitions. [2018-11-07 04:00:38,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:00:38,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-11-07 04:00:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:00:38,097 INFO L225 Difference]: With dead ends: 2164 [2018-11-07 04:00:38,098 INFO L226 Difference]: Without dead ends: 1554 [2018-11-07 04:00:38,109 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 04:00:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2018-11-07 04:00:38,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1051. [2018-11-07 04:00:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-11-07 04:00:38,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1880 transitions. [2018-11-07 04:00:38,288 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1880 transitions. Word has length 44 [2018-11-07 04:00:38,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:00:38,290 INFO L480 AbstractCegarLoop]: Abstraction has 1051 states and 1880 transitions. [2018-11-07 04:00:38,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:00:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1880 transitions. [2018-11-07 04:00:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 04:00:38,302 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:00:38,302 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:38,302 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:00:38,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:00:38,306 INFO L82 PathProgramCache]: Analyzing trace with hash 760811562, now seen corresponding path program 1 times [2018-11-07 04:00:38,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:00:38,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:38,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:00:38,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:38,307 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:00:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:00:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:00:38,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:00:38,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:00:38,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:00:38,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:00:38,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:00:38,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:00:38,653 INFO L87 Difference]: Start difference. First operand 1051 states and 1880 transitions. Second operand 5 states. [2018-11-07 04:00:45,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:00:45,443 INFO L93 Difference]: Finished difference Result 3028 states and 5532 transitions. [2018-11-07 04:00:45,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:00:45,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-11-07 04:00:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:00:45,460 INFO L225 Difference]: With dead ends: 3028 [2018-11-07 04:00:45,461 INFO L226 Difference]: Without dead ends: 1983 [2018-11-07 04:00:45,466 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:00:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2018-11-07 04:00:45,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1957. [2018-11-07 04:00:45,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-11-07 04:00:45,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3236 transitions. [2018-11-07 04:00:45,563 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3236 transitions. Word has length 116 [2018-11-07 04:00:45,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:00:45,563 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3236 transitions. [2018-11-07 04:00:45,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:00:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3236 transitions. [2018-11-07 04:00:45,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 04:00:45,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:00:45,568 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:45,569 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:00:45,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:00:45,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1743388018, now seen corresponding path program 1 times [2018-11-07 04:00:45,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:00:45,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:45,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:00:45,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:00:45,571 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:00:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:00:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:00:46,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:00:46,143 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:00:46,144 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 120 with the following transitions: [2018-11-07 04:00:46,152 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], [926], [934], [942], [950], [958], [962], [964], [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 04:00:46,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:00:46,234 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:00:47,701 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:01:07,416 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:01:07,418 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 04:01:07,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:01:07,431 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:01:09,435 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 83.33% of their original sizes. [2018-11-07 04:01:09,435 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:01:38,450 INFO L415 sIntCurrentIteration]: We unified 118 AI predicates to 118 [2018-11-07 04:01:38,450 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:01:38,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:01:38,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-07 04:01:38,452 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:01:38,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 04:01:38,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 04:01:38,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-11-07 04:01:38,454 INFO L87 Difference]: Start difference. First operand 1957 states and 3236 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 04:04:01,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 04:04:01,068 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:04:01,073 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:04:01,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:04:01 BoogieIcfgContainer [2018-11-07 04:04:01,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:04:01,075 INFO L168 Benchmark]: Toolchain (without parser) took 226613.04 ms. Allocated memory was 1.5 GB in the beginning and 4.3 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: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 04:04:01,076 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-07 04:04:01,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1767.96 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 04:04:01,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 259.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.2 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:01,079 INFO L168 Benchmark]: Boogie Preprocessor took 213.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 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. [2018-11-07 04:04:01,079 INFO L168 Benchmark]: RCFGBuilder took 8977.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 469.5 MB). Peak memory consumption was 469.5 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:01,080 INFO L168 Benchmark]: TraceAbstraction took 215389.74 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 643.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:04:01,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1767.96 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 259.08 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -975.2 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 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 8977.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 469.5 MB). Peak memory consumption was 469.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215389.74 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.1 GB in the end (delta: -1.3 GB). Peak memory consumption was 643.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 119). Cancelled while BasicCegarLoop was constructing difference of abstraction (1957states) and FLOYD_HOARE automaton (currently 17 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1460 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 215.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 161.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 611 SDtfs, 4819 SDslu, 592 SDs, 0 SdLazy, 6221 SolverSat, 1817 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 80.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 145 GetRequests, 83 SyntacticMatches, 27 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 32.1s 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, 21.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9924511082138201 AbsIntWeakeningRatio, 0.17796610169491525 AbsIntAvgWeakeningVarsNumRemoved, 778.0254237288135 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 529 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 97186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 37/74 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown