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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:05:45,500 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:05:45,502 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:05:45,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:05:45,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:05:45,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:05:45,521 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:05:45,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:05:45,525 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:05:45,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:05:45,527 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:05:45,527 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:05:45,528 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:05:45,529 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:05:45,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:05:45,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:05:45,532 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:05:45,534 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:05:45,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:05:45,537 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:05:45,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:05:45,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:05:45,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:05:45,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:05:45,543 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:05:45,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:05:45,544 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:05:45,545 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:05:45,546 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:05:45,547 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:05:45,547 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:05:45,548 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:05:45,548 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:05:45,548 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:05:45,549 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:05:45,550 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:05:45,550 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:05:45,566 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:05:45,566 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:05:45,567 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:05:45,567 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:05:45,567 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:05:45,568 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:05:45,568 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:05:45,568 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:05:45,568 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:05:45,568 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:05:45,569 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:05:45,569 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:05:45,569 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:05:45,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:05:45,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:05:45,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:05:45,570 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:05:45,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:05:45,571 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:05:45,571 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:05:45,571 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:05:45,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:05:45,572 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:05:45,572 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:05:45,572 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:05:45,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:05:45,572 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:05:45,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:05:45,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:05:45,573 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:05:45,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:05:45,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:05:45,574 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:05:45,574 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:05:45,574 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:05:45,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:05:45,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:05:45,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:05:45,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:05:45,647 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:05:45,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-11-07 20:05:45,714 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5684752d/d5f78674779f4f13ba7012cfa9f2650e/FLAGa3295a378 [2018-11-07 20:05:46,330 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:05:46,332 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-11-07 20:05:46,348 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5684752d/d5f78674779f4f13ba7012cfa9f2650e/FLAGa3295a378 [2018-11-07 20:05:46,364 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5684752d/d5f78674779f4f13ba7012cfa9f2650e [2018-11-07 20:05:46,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:05:46,379 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:05:46,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:05:46,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:05:46,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:05:46,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:05:46" (1/1) ... [2018-11-07 20:05:46,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ef60d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:46, skipping insertion in model container [2018-11-07 20:05:46,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:05:46" (1/1) ... [2018-11-07 20:05:46,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:05:46,489 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:05:47,090 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:05:47,095 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:05:47,298 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:05:47,321 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:05:47,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47 WrapperNode [2018-11-07 20:05:47,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:05:47,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:05:47,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:05:47,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:05:47,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:05:47,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:05:47,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:05:47,509 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:05:47,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (1/1) ... [2018-11-07 20:05:47,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:05:47,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:05:47,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:05:47,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:05:47,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (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 20:05:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:05:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:05:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:05:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:05:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:05:47,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:05:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:05:47,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:05:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:05:52,308 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:05:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:05:52 BoogieIcfgContainer [2018-11-07 20:05:52,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:05:52,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:05:52,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:05:52,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:05:52,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:05:46" (1/3) ... [2018-11-07 20:05:52,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a692ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:05:52, skipping insertion in model container [2018-11-07 20:05:52,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:47" (2/3) ... [2018-11-07 20:05:52,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a692ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:05:52, skipping insertion in model container [2018-11-07 20:05:52,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:05:52" (3/3) ... [2018-11-07 20:05:52,317 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label02_true-unreach-call.c [2018-11-07 20:05:52,327 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:05:52,336 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:05:52,355 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:05:52,397 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:05:52,397 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:05:52,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:05:52,398 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:05:52,398 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:05:52,398 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:05:52,398 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:05:52,398 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:05:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 20:05:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-07 20:05:52,439 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:05:52,440 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] [2018-11-07 20:05:52,442 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:05:52,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:05:52,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1008235991, now seen corresponding path program 1 times [2018-11-07 20:05:52,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:05:52,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:05:52,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:05:52,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:05:52,508 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:05:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:05:53,032 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-07 20:05:53,049 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 20:05:53,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:05:53,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:05:53,052 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:05:53,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:05:53,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:05:53,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:05:53,077 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 20:05:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:05:56,162 INFO L93 Difference]: Finished difference Result 985 states and 1761 transitions. [2018-11-07 20:05:56,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:05:56,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-07 20:05:56,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:05:56,190 INFO L225 Difference]: With dead ends: 985 [2018-11-07 20:05:56,190 INFO L226 Difference]: Without dead ends: 686 [2018-11-07 20:05:56,201 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:05:56,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-11-07 20:05:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2018-11-07 20:05:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2018-11-07 20:05:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1046 transitions. [2018-11-07 20:05:56,312 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1046 transitions. Word has length 61 [2018-11-07 20:05:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:05:56,313 INFO L480 AbstractCegarLoop]: Abstraction has 686 states and 1046 transitions. [2018-11-07 20:05:56,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:05:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1046 transitions. [2018-11-07 20:05:56,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 20:05:56,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:05:56,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:05:56,324 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:05:56,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:05:56,325 INFO L82 PathProgramCache]: Analyzing trace with hash 512006507, now seen corresponding path program 1 times [2018-11-07 20:05:56,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:05:56,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:05:56,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:05:56,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:05:56,327 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:05:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:05:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:05:56,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:05:56,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:05:56,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:05:56,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:05:56,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:05:56,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:05:56,718 INFO L87 Difference]: Start difference. First operand 686 states and 1046 transitions. Second operand 6 states. [2018-11-07 20:06:02,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:06:02,447 INFO L93 Difference]: Finished difference Result 2340 states and 3735 transitions. [2018-11-07 20:06:02,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:06:02,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-11-07 20:06:02,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:06:02,465 INFO L225 Difference]: With dead ends: 2340 [2018-11-07 20:06:02,465 INFO L226 Difference]: Without dead ends: 1660 [2018-11-07 20:06:02,470 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:06:02,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2018-11-07 20:06:02,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1643. [2018-11-07 20:06:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1643 states. [2018-11-07 20:06:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2357 transitions. [2018-11-07 20:06:02,558 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2357 transitions. Word has length 142 [2018-11-07 20:06:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:06:02,559 INFO L480 AbstractCegarLoop]: Abstraction has 1643 states and 2357 transitions. [2018-11-07 20:06:02,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:06:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2357 transitions. [2018-11-07 20:06:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-07 20:06:02,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:06:02,571 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:06:02,571 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:06:02,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:02,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1402056089, now seen corresponding path program 1 times [2018-11-07 20:06:02,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:06:02,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:02,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:02,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:02,574 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:06:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:02,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:06:02,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:06:02,841 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:06:02,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:06:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:06:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:06:02,842 INFO L87 Difference]: Start difference. First operand 1643 states and 2357 transitions. Second operand 4 states. [2018-11-07 20:06:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:06:05,294 INFO L93 Difference]: Finished difference Result 6241 states and 9312 transitions. [2018-11-07 20:06:05,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:06:05,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2018-11-07 20:06:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:06:05,326 INFO L225 Difference]: With dead ends: 6241 [2018-11-07 20:06:05,326 INFO L226 Difference]: Without dead ends: 4604 [2018-11-07 20:06:05,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:06:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2018-11-07 20:06:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4579. [2018-11-07 20:06:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4579 states. [2018-11-07 20:06:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6360 transitions. [2018-11-07 20:06:05,496 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6360 transitions. Word has length 156 [2018-11-07 20:06:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:06:05,497 INFO L480 AbstractCegarLoop]: Abstraction has 4579 states and 6360 transitions. [2018-11-07 20:06:05,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:06:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6360 transitions. [2018-11-07 20:06:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-07 20:06:05,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:06:05,501 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:06:05,502 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:06:05,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:05,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1808581075, now seen corresponding path program 1 times [2018-11-07 20:06:05,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:06:05,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:05,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:05,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:05,504 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:06:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:05,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:05,999 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:06:06,000 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-11-07 20:06:06,002 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:06:06,052 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:06:06,052 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:06:06,755 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:06:08,039 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:06:08,040 INFO L272 AbstractInterpreter]: Visited 140 different actions 406 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 20:06:08,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:08,091 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:06:08,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:08,092 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:06:08,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:08,112 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:06:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:08,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:06:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:08,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:06:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:09,044 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:06:09,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-07 20:06:09,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:06:09,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:06:09,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:06:09,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:06:09,047 INFO L87 Difference]: Start difference. First operand 4579 states and 6360 transitions. Second operand 3 states. [2018-11-07 20:06:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:06:12,606 INFO L93 Difference]: Finished difference Result 11092 states and 15933 transitions. [2018-11-07 20:06:12,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:06:12,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2018-11-07 20:06:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:06:12,652 INFO L225 Difference]: With dead ends: 11092 [2018-11-07 20:06:12,652 INFO L226 Difference]: Without dead ends: 6708 [2018-11-07 20:06:12,683 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 386 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:06:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2018-11-07 20:06:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6705. [2018-11-07 20:06:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6705 states. [2018-11-07 20:06:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9020 transitions. [2018-11-07 20:06:12,869 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9020 transitions. Word has length 193 [2018-11-07 20:06:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:06:12,869 INFO L480 AbstractCegarLoop]: Abstraction has 6705 states and 9020 transitions. [2018-11-07 20:06:12,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:06:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9020 transitions. [2018-11-07 20:06:12,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-11-07 20:06:12,884 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:06:12,884 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:12,885 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:06:12,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:12,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1389847326, now seen corresponding path program 1 times [2018-11-07 20:06:12,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:06:12,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:12,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:12,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:12,888 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:06:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:13,467 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 20:06:14,054 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-11-07 20:06:14,642 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 20:06:14,992 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-11-07 20:06:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 158 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:15,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:15,509 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:06:15,510 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-11-07 20:06:15,510 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [641], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:06:15,519 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:06:15,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:06:15,776 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:06:17,251 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:06:17,252 INFO L272 AbstractInterpreter]: Visited 141 different actions 554 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 20:06:17,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:17,288 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:06:17,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:17,288 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:06:17,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:17,301 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:06:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:17,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:06:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-11-07 20:06:18,445 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:06:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:06:19,650 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:06:19,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 8] total 24 [2018-11-07 20:06:19,651 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:06:19,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 20:06:19,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 20:06:19,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-11-07 20:06:19,654 INFO L87 Difference]: Start difference. First operand 6705 states and 9020 transitions. Second operand 19 states. [2018-11-07 20:06:33,765 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2018-11-07 20:06:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:06:49,083 INFO L93 Difference]: Finished difference Result 24903 states and 40203 transitions. [2018-11-07 20:06:49,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-11-07 20:06:49,083 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 298 [2018-11-07 20:06:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:06:49,203 INFO L225 Difference]: With dead ends: 24903 [2018-11-07 20:06:49,203 INFO L226 Difference]: Without dead ends: 17643 [2018-11-07 20:06:49,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 607 SyntacticMatches, 3 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6378 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=2544, Invalid=15012, Unknown=0, NotChecked=0, Total=17556 [2018-11-07 20:06:49,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17643 states. [2018-11-07 20:06:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17643 to 16475. [2018-11-07 20:06:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16475 states. [2018-11-07 20:06:49,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16475 states to 16475 states and 21298 transitions. [2018-11-07 20:06:49,933 INFO L78 Accepts]: Start accepts. Automaton has 16475 states and 21298 transitions. Word has length 298 [2018-11-07 20:06:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:06:49,934 INFO L480 AbstractCegarLoop]: Abstraction has 16475 states and 21298 transitions. [2018-11-07 20:06:49,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 20:06:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 16475 states and 21298 transitions. [2018-11-07 20:06:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-11-07 20:06:49,989 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:06:49,995 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:06:49,995 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:06:49,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:49,996 INFO L82 PathProgramCache]: Analyzing trace with hash 391462463, now seen corresponding path program 1 times [2018-11-07 20:06:49,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:06:49,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:49,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:49,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:06:49,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:06:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 168 proven. 206 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-07 20:06:50,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:50,812 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:06:50,812 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 407 with the following transitions: [2018-11-07 20:06:50,813 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [641], [642], [646], [650], [653], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:06:50,818 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:06:50,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:06:50,972 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:06:51,982 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:06:51,982 INFO L272 AbstractInterpreter]: Visited 142 different actions 558 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 20:06:52,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:06:52,020 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:06:52,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:06:52,020 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:06:52,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:06:52,039 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:06:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:06:52,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:06:54,922 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-11-07 20:06:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 318 proven. 107 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-07 20:06:55,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:06:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 273 proven. 104 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-07 20:06:55,512 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:06:55,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 12 [2018-11-07 20:06:55,512 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:06:55,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:06:55,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:06:55,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=96, Unknown=2, NotChecked=0, Total=132 [2018-11-07 20:06:55,514 INFO L87 Difference]: Start difference. First operand 16475 states and 21298 transitions. Second operand 10 states. [2018-11-07 20:08:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:08:39,271 INFO L93 Difference]: Finished difference Result 50410 states and 74595 transitions. [2018-11-07 20:08:39,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 20:08:39,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 406 [2018-11-07 20:08:39,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:08:39,472 INFO L225 Difference]: With dead ends: 50410 [2018-11-07 20:08:39,472 INFO L226 Difference]: Without dead ends: 34322 [2018-11-07 20:08:39,553 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 822 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=212, Invalid=589, Unknown=11, NotChecked=0, Total=812 [2018-11-07 20:08:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34322 states. [2018-11-07 20:08:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34322 to 33686. [2018-11-07 20:08:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33686 states. [2018-11-07 20:08:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33686 states to 33686 states and 45914 transitions. [2018-11-07 20:08:40,599 INFO L78 Accepts]: Start accepts. Automaton has 33686 states and 45914 transitions. Word has length 406 [2018-11-07 20:08:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:08:40,600 INFO L480 AbstractCegarLoop]: Abstraction has 33686 states and 45914 transitions. [2018-11-07 20:08:40,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:08:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 33686 states and 45914 transitions. [2018-11-07 20:08:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-11-07 20:08:40,741 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:08:40,742 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:08:40,742 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:08:40,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:08:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1251224200, now seen corresponding path program 1 times [2018-11-07 20:08:40,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:08:40,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:08:40,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:08:40,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:08:40,744 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:08:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:08:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 227 proven. 382 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2018-11-07 20:08:41,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:08:41,724 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:08:41,724 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 508 with the following transitions: [2018-11-07 20:08:41,724 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [641], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [811], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:08:41,729 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:08:41,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:08:41,847 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:08:42,107 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:08:42,107 INFO L272 AbstractInterpreter]: Visited 147 different actions 288 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 20:08:42,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:08:42,145 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:08:43,424 INFO L227 lantSequenceWeakener]: Weakened 374 states. On average, predicates are now at 73.5% of their original sizes. [2018-11-07 20:08:43,424 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:08:44,209 INFO L415 sIntCurrentIteration]: We unified 506 AI predicates to 506 [2018-11-07 20:08:44,210 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:08:44,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:08:44,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24 [2018-11-07 20:08:44,211 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:08:44,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 20:08:44,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 20:08:44,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-07 20:08:44,213 INFO L87 Difference]: Start difference. First operand 33686 states and 45914 transitions. Second operand 19 states. [2018-11-07 20:09:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:09:05,129 INFO L93 Difference]: Finished difference Result 67181 states and 91635 transitions. [2018-11-07 20:09:05,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 20:09:05,129 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 507 [2018-11-07 20:09:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:09:05,269 INFO L225 Difference]: With dead ends: 67181 [2018-11-07 20:09:05,269 INFO L226 Difference]: Without dead ends: 33884 [2018-11-07 20:09:05,350 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 517 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=173, Invalid=697, Unknown=0, NotChecked=0, Total=870 [2018-11-07 20:09:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33884 states. [2018-11-07 20:09:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33884 to 33877. [2018-11-07 20:09:06,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33877 states. [2018-11-07 20:09:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33877 states to 33877 states and 46126 transitions. [2018-11-07 20:09:06,132 INFO L78 Accepts]: Start accepts. Automaton has 33877 states and 46126 transitions. Word has length 507 [2018-11-07 20:09:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:09:06,132 INFO L480 AbstractCegarLoop]: Abstraction has 33877 states and 46126 transitions. [2018-11-07 20:09:06,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 20:09:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33877 states and 46126 transitions. [2018-11-07 20:09:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-11-07 20:09:06,216 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:09:06,217 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:09:06,217 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:09:06,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:09:06,218 INFO L82 PathProgramCache]: Analyzing trace with hash 826033988, now seen corresponding path program 1 times [2018-11-07 20:09:06,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:09:06,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:09:06,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:09:06,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:09:06,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:09:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:09:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 394 proven. 294 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-07 20:09:07,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:09:07,388 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:09:07,388 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 518 with the following transitions: [2018-11-07 20:09:07,388 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [641], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [811], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:09:07,392 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:09:07,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:09:07,494 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:09:09,111 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:09:09,112 INFO L272 AbstractInterpreter]: Visited 148 different actions 890 times. Merged at 9 different actions 59 times. Widened at 1 different actions 2 times. Found 14 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 20:09:09,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:09:09,119 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:09:09,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:09:09,119 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:09:09,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:09:09,130 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:09:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:09:09,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:09:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-11-07 20:09:09,589 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:09:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-11-07 20:09:11,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:09:11,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-07 20:09:11,019 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:09:11,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 20:09:11,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 20:09:11,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:09:11,020 INFO L87 Difference]: Start difference. First operand 33877 states and 46126 transitions. Second operand 18 states. [2018-11-07 20:09:13,424 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 20:09:26,013 WARN L179 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 20:09:31,923 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2018-11-07 20:09:35,401 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-11-07 20:09:37,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:09:37,046 INFO L93 Difference]: Finished difference Result 87713 states and 147085 transitions. [2018-11-07 20:09:37,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-11-07 20:09:37,046 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 517 [2018-11-07 20:09:37,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:09:37,532 INFO L225 Difference]: With dead ends: 87713 [2018-11-07 20:09:37,532 INFO L226 Difference]: Without dead ends: 54416 [2018-11-07 20:09:37,731 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1084 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4107 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2018, Invalid=9538, Unknown=0, NotChecked=0, Total=11556 [2018-11-07 20:09:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54416 states. Received shutdown request... [2018-11-07 20:09:37,900 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:09:37,906 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:09:37,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:09:37 BoogieIcfgContainer [2018-11-07 20:09:37,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:09:37,907 INFO L168 Benchmark]: Toolchain (without parser) took 231529.58 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 20:09:37,908 INFO L168 Benchmark]: CDTParser took 0.24 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 20:09:37,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 941.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 20:09:37,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 20:09:37,913 INFO L168 Benchmark]: Boogie Preprocessor took 145.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:09:37,914 INFO L168 Benchmark]: RCFGBuilder took 4654.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:09:37,915 INFO L168 Benchmark]: TraceAbstraction took 225596.94 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -387.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 20:09:37,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 941.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 184.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -868.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.09 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4654.79 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225596.94 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -387.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 168). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 225.5s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 196.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1978 SDtfs, 27109 SDslu, 3539 SDs, 0 SdLazy, 41691 SolverSat, 12051 SolverUnsat, 94 SolverUnknown, 0 SolverNotchecked, 147.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3716 GetRequests, 3398 SyntacticMatches, 10 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10825 ImplicationChecksByTransitivity, 27.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33877occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.2s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9978726788509397 AbsIntWeakeningRatio, 0.07905138339920949 AbsIntAvgWeakeningVarsNumRemoved, 24.213438735177867 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1856 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 3694 NumberOfCodeBlocks, 3694 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 5092 ConstructedInterpolants, 3 QuantifiedInterpolants, 9514258 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2329 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 4335/5595 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown