java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:16:46,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:16:46,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:16:46,414 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:16:46,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:16:46,416 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:16:46,417 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:16:46,420 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:16:46,422 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:16:46,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:16:46,425 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:16:46,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:16:46,429 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:16:46,430 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:16:46,431 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:16:46,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:16:46,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:16:46,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:16:46,448 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:16:46,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:16:46,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:16:46,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:16:46,458 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:16:46,458 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:16:46,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:16:46,460 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:16:46,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:16:46,461 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:16:46,464 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:16:46,465 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:16:46,465 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:16:46,466 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:16:46,466 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:16:46,466 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:16:46,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:16:46,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:16:46,471 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:16:46,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:16:46,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:16:46,501 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:16:46,501 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:16:46,502 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:16:46,502 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:16:46,502 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:16:46,502 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:16:46,503 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:16:46,503 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:16:46,503 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:16:46,503 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:16:46,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:16:46,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:16:46,504 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:16:46,504 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:16:46,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:16:46,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:16:46,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:16:46,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:16:46,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:16:46,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:16:46,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:16:46,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:16:46,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:16:46,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:16:46,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:16:46,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:16:46,508 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:16:46,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:16:46,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:16:46,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:16:46,509 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:16:46,509 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:16:46,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:16:46,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:16:46,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:16:46,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:16:46,573 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:16:46,574 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label59_true-unreach-call.c [2018-10-24 21:16:46,639 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9d6b9754/a007da5ec26d4697a34c9640ad2d4cd3/FLAGa2a27cfa1 [2018-10-24 21:16:47,218 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:16:47,222 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label59_true-unreach-call.c [2018-10-24 21:16:47,244 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9d6b9754/a007da5ec26d4697a34c9640ad2d4cd3/FLAGa2a27cfa1 [2018-10-24 21:16:47,260 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9d6b9754/a007da5ec26d4697a34c9640ad2d4cd3 [2018-10-24 21:16:47,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:16:47,273 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:16:47,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:16:47,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:16:47,280 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:16:47,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:16:47" (1/1) ... [2018-10-24 21:16:47,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d2dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:47, skipping insertion in model container [2018-10-24 21:16:47,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:16:47" (1/1) ... [2018-10-24 21:16:47,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:16:47,361 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:16:48,010 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:16:48,015 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:16:48,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:16:48,236 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:16:48,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48 WrapperNode [2018-10-24 21:16:48,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:16:48,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:16:48,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:16:48,238 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:16:48,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:16:48,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:16:48,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:16:48,530 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:16:48,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... [2018-10-24 21:16:48,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:16:48,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:16:48,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:16:48,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:16:48,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:16:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:16:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:16:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:16:48,717 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:16:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:16:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:16:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:16:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:16:53,673 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:16:53,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:16:53 BoogieIcfgContainer [2018-10-24 21:16:53,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:16:53,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:16:53,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:16:53,680 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:16:53,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:16:47" (1/3) ... [2018-10-24 21:16:53,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9141ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:16:53, skipping insertion in model container [2018-10-24 21:16:53,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:16:48" (2/3) ... [2018-10-24 21:16:53,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9141ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:16:53, skipping insertion in model container [2018-10-24 21:16:53,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:16:53" (3/3) ... [2018-10-24 21:16:53,685 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label59_true-unreach-call.c [2018-10-24 21:16:53,695 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:16:53,705 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:16:53,724 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:16:53,763 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:16:53,764 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:16:53,764 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:16:53,764 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:16:53,765 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:16:53,765 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:16:53,765 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:16:53,765 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:16:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:16:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-24 21:16:53,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:53,813 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:16:53,816 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:53,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1395021716, now seen corresponding path program 1 times [2018-10-24 21:16:53,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:53,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:53,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:53,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:53,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:16:54,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:16:54,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:16:54,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:54,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:16:54,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:16:54,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:16:54,390 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-24 21:16:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:16:56,616 INFO L93 Difference]: Finished difference Result 785 states and 1378 transitions. [2018-10-24 21:16:56,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:16:56,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-10-24 21:16:56,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:16:56,640 INFO L225 Difference]: With dead ends: 785 [2018-10-24 21:16:56,641 INFO L226 Difference]: Without dead ends: 490 [2018-10-24 21:16:56,650 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:16:56,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-10-24 21:16:56,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2018-10-24 21:16:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-24 21:16:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 841 transitions. [2018-10-24 21:16:56,739 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 841 transitions. Word has length 66 [2018-10-24 21:16:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:16:56,740 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 841 transitions. [2018-10-24 21:16:56,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:16:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 841 transitions. [2018-10-24 21:16:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 21:16:56,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:16:56,750 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, 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] [2018-10-24 21:16:56,750 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:16:56,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:16:56,751 INFO L82 PathProgramCache]: Analyzing trace with hash -994011168, now seen corresponding path program 1 times [2018-10-24 21:16:56,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:16:56,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:56,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:16:56,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:16:56,753 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:16:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:16:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:16:57,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:16:57,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:16:57,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:16:57,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:16:57,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:16:57,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:16:57,335 INFO L87 Difference]: Start difference. First operand 482 states and 841 transitions. Second operand 6 states. [2018-10-24 21:17:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:03,133 INFO L93 Difference]: Finished difference Result 1762 states and 3209 transitions. [2018-10-24 21:17:03,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:17:03,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-24 21:17:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:03,147 INFO L225 Difference]: With dead ends: 1762 [2018-10-24 21:17:03,147 INFO L226 Difference]: Without dead ends: 1286 [2018-10-24 21:17:03,153 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:17:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2018-10-24 21:17:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1252. [2018-10-24 21:17:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2018-10-24 21:17:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1988 transitions. [2018-10-24 21:17:03,236 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1988 transitions. Word has length 136 [2018-10-24 21:17:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:03,237 INFO L481 AbstractCegarLoop]: Abstraction has 1252 states and 1988 transitions. [2018-10-24 21:17:03,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:17:03,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1988 transitions. [2018-10-24 21:17:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 21:17:03,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:03,242 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, 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] [2018-10-24 21:17:03,242 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:03,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:03,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2016062845, now seen corresponding path program 1 times [2018-10-24 21:17:03,245 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:03,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:03,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:03,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:03,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:03,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:17:03,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:17:03,545 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:17:03,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:17:03,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:17:03,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:17:03,547 INFO L87 Difference]: Start difference. First operand 1252 states and 1988 transitions. Second operand 6 states. [2018-10-24 21:17:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:06,773 INFO L93 Difference]: Finished difference Result 3466 states and 5570 transitions. [2018-10-24 21:17:06,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:17:06,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-10-24 21:17:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:06,790 INFO L225 Difference]: With dead ends: 3466 [2018-10-24 21:17:06,791 INFO L226 Difference]: Without dead ends: 2220 [2018-10-24 21:17:06,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:17:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-10-24 21:17:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2195. [2018-10-24 21:17:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2195 states. [2018-10-24 21:17:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3227 transitions. [2018-10-24 21:17:06,871 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3227 transitions. Word has length 139 [2018-10-24 21:17:06,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:06,873 INFO L481 AbstractCegarLoop]: Abstraction has 2195 states and 3227 transitions. [2018-10-24 21:17:06,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:17:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3227 transitions. [2018-10-24 21:17:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 21:17:06,877 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:06,877 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, 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] [2018-10-24 21:17:06,878 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:06,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1284370280, now seen corresponding path program 1 times [2018-10-24 21:17:06,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:06,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:06,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:06,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:06,880 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:07,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:17:07,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 21:17:07,253 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:17:07,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:17:07,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:17:07,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:17:07,256 INFO L87 Difference]: Start difference. First operand 2195 states and 3227 transitions. Second operand 7 states. [2018-10-24 21:17:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:13,047 INFO L93 Difference]: Finished difference Result 5926 states and 8993 transitions. [2018-10-24 21:17:13,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 21:17:13,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2018-10-24 21:17:13,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:13,076 INFO L225 Difference]: With dead ends: 5926 [2018-10-24 21:17:13,076 INFO L226 Difference]: Without dead ends: 3737 [2018-10-24 21:17:13,091 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 21:17:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2018-10-24 21:17:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3563. [2018-10-24 21:17:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3563 states. [2018-10-24 21:17:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 4993 transitions. [2018-10-24 21:17:13,226 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 4993 transitions. Word has length 140 [2018-10-24 21:17:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:13,227 INFO L481 AbstractCegarLoop]: Abstraction has 3563 states and 4993 transitions. [2018-10-24 21:17:13,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:17:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 4993 transitions. [2018-10-24 21:17:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-24 21:17:13,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:13,232 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, 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] [2018-10-24 21:17:13,232 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:13,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2129360111, now seen corresponding path program 1 times [2018-10-24 21:17:13,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:13,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:13,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:13,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:13,234 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:13,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:17:13,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:17:13,409 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:17:13,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:17:13,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:17:13,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:17:13,411 INFO L87 Difference]: Start difference. First operand 3563 states and 4993 transitions. Second operand 3 states. [2018-10-24 21:17:15,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:15,846 INFO L93 Difference]: Finished difference Result 8043 states and 11700 transitions. [2018-10-24 21:17:15,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:17:15,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-10-24 21:17:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:15,878 INFO L225 Difference]: With dead ends: 8043 [2018-10-24 21:17:15,878 INFO L226 Difference]: Without dead ends: 4486 [2018-10-24 21:17:15,892 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:17:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2018-10-24 21:17:15,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 4425. [2018-10-24 21:17:15,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4425 states. [2018-10-24 21:17:16,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 5873 transitions. [2018-10-24 21:17:16,005 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 5873 transitions. Word has length 198 [2018-10-24 21:17:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:16,005 INFO L481 AbstractCegarLoop]: Abstraction has 4425 states and 5873 transitions. [2018-10-24 21:17:16,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:17:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 5873 transitions. [2018-10-24 21:17:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-24 21:17:16,010 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:16,010 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:17:16,011 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:16,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:16,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1377359462, now seen corresponding path program 1 times [2018-10-24 21:17:16,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:16,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:16,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:16,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:16,012 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:16,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:17:16,780 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:17:16,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-10-24 21:17:16,783 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], [393], [401], [409], [417], [425], [429], [431], [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], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:17:16,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:17:16,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:17:21,844 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:17:40,347 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 21:17:40,348 INFO L272 AbstractInterpreter]: Visited 156 different actions 455 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:17:40,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:40,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 21:17:40,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:17:40,363 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 21:17:40,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:40,372 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:17:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:40,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:17:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:42,981 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 21:17:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:43,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 21:17:43,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-10-24 21:17:43,252 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:17:43,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:17:43,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:17:43,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-10-24 21:17:43,253 INFO L87 Difference]: Start difference. First operand 4425 states and 5873 transitions. Second operand 3 states. [2018-10-24 21:17:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:17:45,849 INFO L93 Difference]: Finished difference Result 10062 states and 13958 transitions. [2018-10-24 21:17:45,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:17:45,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-10-24 21:17:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:17:45,884 INFO L225 Difference]: With dead ends: 10062 [2018-10-24 21:17:45,885 INFO L226 Difference]: Without dead ends: 5643 [2018-10-24 21:17:45,907 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 426 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-10-24 21:17:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2018-10-24 21:17:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5601. [2018-10-24 21:17:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5601 states. [2018-10-24 21:17:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 7759 transitions. [2018-10-24 21:17:46,061 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 7759 transitions. Word has length 214 [2018-10-24 21:17:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:17:46,062 INFO L481 AbstractCegarLoop]: Abstraction has 5601 states and 7759 transitions. [2018-10-24 21:17:46,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:17:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 7759 transitions. [2018-10-24 21:17:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-10-24 21:17:46,075 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:17:46,075 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:17:46,075 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:17:46,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:17:46,076 INFO L82 PathProgramCache]: Analyzing trace with hash -2132579400, now seen corresponding path program 1 times [2018-10-24 21:17:46,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:17:46,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:46,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:17:46,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:17:46,077 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:17:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:17:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:17:46,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:17:46,691 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:17:46,692 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-10-24 21:17:46,692 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], [393], [401], [409], [417], [425], [429], [431], [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], [602], [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] [2018-10-24 21:17:46,708 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:17:46,708 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:17:48,903 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:18:09,879 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:18:09,880 INFO L272 AbstractInterpreter]: Visited 140 different actions 408 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:18:09,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:18:09,885 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:18:14,725 INFO L232 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 75.08% of their original sizes. [2018-10-24 21:18:14,725 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:19:38,869 INFO L413 sIntCurrentIteration]: We have 294 unified AI predicates [2018-10-24 21:19:38,869 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:19:38,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:19:38,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-24 21:19:38,871 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:19:38,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:19:38,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:19:38,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:19:38,873 INFO L87 Difference]: Start difference. First operand 5601 states and 7759 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 21:20:52,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 21:20:52,750 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:20:52,756 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:20:52,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:20:52 BoogieIcfgContainer [2018-10-24 21:20:52,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:20:52,758 INFO L168 Benchmark]: Toolchain (without parser) took 245485.46 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -658.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 21:20:52,760 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:20:52,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 962.41 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:20:52,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -803.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:20:52,763 INFO L168 Benchmark]: Boogie Preprocessor took 131.57 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:20:52,764 INFO L168 Benchmark]: RCFGBuilder took 5012.87 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 180.3 MB). Peak memory consumption was 180.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:20:52,765 INFO L168 Benchmark]: TraceAbstraction took 239080.41 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -98.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 21:20:52,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 962.41 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 292.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -803.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.57 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5012.87 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 180.3 MB). Peak memory consumption was 180.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239080.41 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -98.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (5601states) and FLOYD_HOARE automaton (currently 9 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (123 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 239.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 96.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1080 SDtfs, 4403 SDslu, 699 SDs, 0 SdLazy, 8144 SolverSat, 1820 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 777 GetRequests, 632 SyntacticMatches, 92 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 89.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5601occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 46.7s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.99619821473563 AbsIntWeakeningRatio, 0.09863945578231292 AbsIntAvgWeakeningVarsNumRemoved, 994.7755102040817 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 344 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1402 NumberOfCodeBlocks, 1402 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1607 ConstructedInterpolants, 2 QuantifiedInterpolants, 1045582 SizeOfPredicates, 3 NumberOfNonLiveVariables, 375 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 516/628 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown