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/Problem16_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:55:02,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:55:02,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:55:02,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:55:02,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:55:02,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:55:02,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:55:02,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:55:02,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:55:02,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:55:02,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:55:02,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:55:02,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:55:02,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:55:02,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:55:02,684 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:55:02,685 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:55:02,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:55:02,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:55:02,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:55:02,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:55:02,693 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:55:02,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:55:02,698 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:55:02,698 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:55:02,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:55:02,700 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:55:02,701 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:55:02,702 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:55:02,703 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:55:02,703 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:55:02,704 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:55:02,704 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:55:02,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:55:02,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:55:02,706 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:55:02,706 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 20:55:02,721 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:55:02,722 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:55:02,723 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:55:02,723 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:55:02,723 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:55:02,723 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:55:02,723 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:55:02,724 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:55:02,724 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:55:02,724 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:55:02,724 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:55:02,724 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:55:02,725 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:55:02,725 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:55:02,726 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:55:02,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:55:02,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:55:02,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:55:02,726 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:55:02,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:55:02,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:55:02,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:55:02,727 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:55:02,728 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:55:02,728 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:55:02,728 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:55:02,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:55:02,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:55:02,729 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:55:02,729 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:55:02,729 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:55:02,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:55:02,730 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:55:02,730 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:55:02,730 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:55:02,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:55:02,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:55:02,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:55:02,806 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:55:02,806 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:55:02,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-11-07 20:55:02,873 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d8e2f6e/b5b81298717a4b4c9e94f9a87a73f609/FLAG90f16657b [2018-11-07 20:55:03,535 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:55:03,537 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-11-07 20:55:03,560 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d8e2f6e/b5b81298717a4b4c9e94f9a87a73f609/FLAG90f16657b [2018-11-07 20:55:03,580 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d8e2f6e/b5b81298717a4b4c9e94f9a87a73f609 [2018-11-07 20:55:03,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:55:03,594 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:55:03,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:55:03,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:55:03,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:55:03,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:55:03" (1/1) ... [2018-11-07 20:55:03,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bbd09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:03, skipping insertion in model container [2018-11-07 20:55:03,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:55:03" (1/1) ... [2018-11-07 20:55:03,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:55:03,724 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:55:04,678 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:55:04,683 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:55:04,961 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:55:05,008 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:55:05,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05 WrapperNode [2018-11-07 20:55:05,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:55:05,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:55:05,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:55:05,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:55:05,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:55:05,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:55:05,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:55:05,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:55:05,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (1/1) ... [2018-11-07 20:55:05,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:55:05,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:55:05,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:55:05,371 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:55:05,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (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 20:55:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:55:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:55:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:55:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:55:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:55:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:55:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:55:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:55:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:55:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:55:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:55:11,108 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:55:11,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:55:11 BoogieIcfgContainer [2018-11-07 20:55:11,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:55:11,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:55:11,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:55:11,117 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:55:11,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:55:03" (1/3) ... [2018-11-07 20:55:11,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6334e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:55:11, skipping insertion in model container [2018-11-07 20:55:11,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:55:05" (2/3) ... [2018-11-07 20:55:11,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6334e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:55:11, skipping insertion in model container [2018-11-07 20:55:11,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:55:11" (3/3) ... [2018-11-07 20:55:11,122 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label42_true-unreach-call.c [2018-11-07 20:55:11,134 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:55:11,146 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:55:11,167 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:55:11,221 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:55:11,221 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:55:11,221 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:55:11,222 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:55:11,222 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:55:11,222 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:55:11,222 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:55:11,222 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:55:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 20:55:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-07 20:55:11,285 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:11,287 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:55:11,290 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:11,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:11,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1180093893, now seen corresponding path program 1 times [2018-11-07 20:55:11,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:11,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:11,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:11,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:11,361 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:11,903 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:55:11,981 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 20:55:11,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:55:11,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:55:11,984 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:11,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:55:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:55:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:55:12,009 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 20:55:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:55:15,818 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 20:55:15,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:55:15,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-11-07 20:55:15,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:55:15,847 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 20:55:15,847 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 20:55:15,857 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:55:15,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 20:55:15,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 20:55:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 20:55:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-07 20:55:15,982 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 69 [2018-11-07 20:55:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:55:15,983 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-07 20:55:15,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:55:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-07 20:55:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-07 20:55:15,994 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:15,994 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, 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] [2018-11-07 20:55:15,995 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:15,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash 814141313, now seen corresponding path program 1 times [2018-11-07 20:55:15,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:15,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:15,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:15,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:15,997 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:16,365 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:55:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:55:16,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:55:16,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:55:16,799 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:16,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:55:16,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:55:16,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:55:16,804 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-07 20:55:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:55:24,078 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-07 20:55:24,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:55:24,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-11-07 20:55:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:55:24,098 INFO L225 Difference]: With dead ends: 2184 [2018-11-07 20:55:24,099 INFO L226 Difference]: Without dead ends: 1446 [2018-11-07 20:55:24,105 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:55:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-07 20:55:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-07 20:55:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-07 20:55:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-07 20:55:24,167 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 162 [2018-11-07 20:55:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:55:24,168 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-07 20:55:24,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:55:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-07 20:55:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-11-07 20:55:24,181 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:24,181 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, 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, 1, 1, 1, 1, 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 20:55:24,182 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:24,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:24,182 INFO L82 PathProgramCache]: Analyzing trace with hash -712455945, now seen corresponding path program 1 times [2018-11-07 20:55:24,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:24,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:24,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:24,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:24,184 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:55:24,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:55:24,610 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:55:24,611 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-11-07 20:55:24,613 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:55:24,669 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:55:24,670 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:55:25,524 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:55:25,527 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 20:55:25,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:25,585 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:55:26,606 INFO L227 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 78.29% of their original sizes. [2018-11-07 20:55:26,607 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:55:28,162 INFO L415 sIntCurrentIteration]: We unified 272 AI predicates to 272 [2018-11-07 20:55:28,162 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:55:28,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:55:28,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-07 20:55:28,163 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:28,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:55:28,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:55:28,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:55:28,165 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 10 states. [2018-11-07 20:55:32,880 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:55:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:55:52,931 INFO L93 Difference]: Finished difference Result 3187 states and 5096 transitions. [2018-11-07 20:55:52,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:55:52,931 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 273 [2018-11-07 20:55:52,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:55:52,941 INFO L225 Difference]: With dead ends: 3187 [2018-11-07 20:55:52,941 INFO L226 Difference]: Without dead ends: 1768 [2018-11-07 20:55:52,947 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 276 GetRequests, 244 SyntacticMatches, 20 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 20:55:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-11-07 20:55:52,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1763. [2018-11-07 20:55:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-07 20:55:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-07 20:55:52,995 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 273 [2018-11-07 20:55:52,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:55:52,996 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-07 20:55:52,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:55:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-07 20:55:53,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-11-07 20:55:53,005 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:55:53,006 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, 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, 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] [2018-11-07 20:55:53,006 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:55:53,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:53,007 INFO L82 PathProgramCache]: Analyzing trace with hash -900476236, now seen corresponding path program 1 times [2018-11-07 20:55:53,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:55:53,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:53,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:55:53,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:55:53,009 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:55:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:55:53,353 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:55:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 192 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 20:55:54,435 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:55:54,435 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:55:54,436 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 366 with the following transitions: [2018-11-07 20:55:54,436 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:55:54,443 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:55:54,443 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:55:54,577 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:55:54,929 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:55:54,929 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:55:54,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:55:54,938 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:55:55,580 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-07 20:55:55,580 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:55:56,826 INFO L415 sIntCurrentIteration]: We unified 364 AI predicates to 364 [2018-11-07 20:55:56,827 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:55:56,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:55:56,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-07 20:55:56,827 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:55:56,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 20:55:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 20:55:56,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:55:56,829 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 17 states. [2018-11-07 20:56:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:56:29,439 INFO L93 Difference]: Finished difference Result 4623 states and 7086 transitions. [2018-11-07 20:56:29,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 20:56:29,440 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 365 [2018-11-07 20:56:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:56:29,454 INFO L225 Difference]: With dead ends: 4623 [2018-11-07 20:56:29,454 INFO L226 Difference]: Without dead ends: 3204 [2018-11-07 20:56:29,460 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 371 GetRequests, 329 SyntacticMatches, 20 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-11-07 20:56:29,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2018-11-07 20:56:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 2956. [2018-11-07 20:56:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2956 states. [2018-11-07 20:56:29,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 3847 transitions. [2018-11-07 20:56:29,536 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 3847 transitions. Word has length 365 [2018-11-07 20:56:29,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:56:29,537 INFO L480 AbstractCegarLoop]: Abstraction has 2956 states and 3847 transitions. [2018-11-07 20:56:29,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 20:56:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 3847 transitions. [2018-11-07 20:56:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2018-11-07 20:56:29,548 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:56:29,548 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, 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, 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] [2018-11-07 20:56:29,549 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:56:29,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:56:29,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1423405372, now seen corresponding path program 1 times [2018-11-07 20:56:29,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:56:29,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:56:29,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:56:29,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:56:29,551 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:56:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:56:29,912 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 192 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 20:56:29,912 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:56:29,912 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:56:29,913 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 402 with the following transitions: [2018-11-07 20:56:29,913 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:56:29,917 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:56:29,918 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:56:29,999 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:56:30,222 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:56:30,222 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:56:30,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:56:30,229 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:56:30,720 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-07 20:56:30,720 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:56:31,145 INFO L415 sIntCurrentIteration]: We unified 400 AI predicates to 400 [2018-11-07 20:56:31,146 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:56:31,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:56:31,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-07 20:56:31,147 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:56:31,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 20:56:31,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 20:56:31,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:56:31,149 INFO L87 Difference]: Start difference. First operand 2956 states and 3847 transitions. Second operand 17 states. [2018-11-07 20:57:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:57:05,993 INFO L93 Difference]: Finished difference Result 5532 states and 8030 transitions. [2018-11-07 20:57:05,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 20:57:05,994 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 401 [2018-11-07 20:57:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:57:06,011 INFO L225 Difference]: With dead ends: 5532 [2018-11-07 20:57:06,011 INFO L226 Difference]: Without dead ends: 4111 [2018-11-07 20:57:06,017 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2018-11-07 20:57:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2018-11-07 20:57:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 3767. [2018-11-07 20:57:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3767 states. [2018-11-07 20:57:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3767 states to 3767 states and 4687 transitions. [2018-11-07 20:57:06,120 INFO L78 Accepts]: Start accepts. Automaton has 3767 states and 4687 transitions. Word has length 401 [2018-11-07 20:57:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:57:06,124 INFO L480 AbstractCegarLoop]: Abstraction has 3767 states and 4687 transitions. [2018-11-07 20:57:06,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 20:57:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3767 states and 4687 transitions. [2018-11-07 20:57:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-11-07 20:57:06,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:57:06,145 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, 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, 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] [2018-11-07 20:57:06,145 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:57:06,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:57:06,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1010899189, now seen corresponding path program 1 times [2018-11-07 20:57:06,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:57:06,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:57:06,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:57:06,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:57:06,149 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:57:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:57:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 300 proven. 92 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-07 20:57:12,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:57:12,431 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:57:12,431 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-11-07 20:57:12,432 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:57:12,440 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:57:12,440 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:57:12,543 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:57:12,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:57:12,926 INFO L272 AbstractInterpreter]: Visited 162 different actions 473 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:57:12,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:57:12,967 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:57:13,588 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-07 20:57:13,588 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:57:14,612 INFO L415 sIntCurrentIteration]: We unified 425 AI predicates to 425 [2018-11-07 20:57:14,613 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:57:14,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:57:14,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [13] total 28 [2018-11-07 20:57:14,613 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:57:14,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 20:57:14,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 20:57:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:57:14,615 INFO L87 Difference]: Start difference. First operand 3767 states and 4687 transitions. Second operand 17 states. [2018-11-07 20:57:51,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:57:51,802 INFO L93 Difference]: Finished difference Result 6349 states and 8881 transitions. [2018-11-07 20:57:51,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 20:57:51,802 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 426 [2018-11-07 20:57:51,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:57:51,819 INFO L225 Difference]: With dead ends: 6349 [2018-11-07 20:57:51,820 INFO L226 Difference]: Without dead ends: 4928 [2018-11-07 20:57:51,826 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 433 GetRequests, 390 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2018-11-07 20:57:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4928 states. [2018-11-07 20:57:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4928 to 4578. [2018-11-07 20:57:51,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4578 states. [2018-11-07 20:57:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 5532 transitions. [2018-11-07 20:57:51,946 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 5532 transitions. Word has length 426 [2018-11-07 20:57:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:57:51,947 INFO L480 AbstractCegarLoop]: Abstraction has 4578 states and 5532 transitions. [2018-11-07 20:57:51,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-07 20:57:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 5532 transitions. [2018-11-07 20:57:51,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-11-07 20:57:51,962 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:57:51,962 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:51,962 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:57:51,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:57:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1807222602, now seen corresponding path program 1 times [2018-11-07 20:57:51,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:57:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:57:51,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:57:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:57:51,964 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:57:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:57:52,339 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:57:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-11-07 20:57:52,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:57:52,734 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:57:52,735 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 459 with the following transitions: [2018-11-07 20:57:52,735 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [179], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [607], [609], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1489], [1493], [1497], [1501], [1505], [1509], [1513], [1517], [1521], [1525], [1529], [1533], [1537], [1541], [1545], [1549], [1551], [1552], [1556], [1560], [1566], [1570], [1572], [1577], [1578], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:57:52,740 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:57:52,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:57:52,822 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:57:54,024 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:57:54,024 INFO L272 AbstractInterpreter]: Visited 303 different actions 1010 times. Merged at 73 different actions 120 times. Never widened. Found 5 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-07 20:57:54,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:57:54,059 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:57:54,485 INFO L227 lantSequenceWeakener]: Weakened 311 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 20:57:54,485 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:57:54,923 INFO L415 sIntCurrentIteration]: We unified 457 AI predicates to 457 [2018-11-07 20:57:54,923 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:57:54,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:57:54,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [5] total 25 [2018-11-07 20:57:54,924 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:57:54,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 20:57:54,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 20:57:54,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-11-07 20:57:54,925 INFO L87 Difference]: Start difference. First operand 4578 states and 5532 transitions. Second operand 22 states. [2018-11-07 20:58:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:58:32,418 INFO L93 Difference]: Finished difference Result 7469 states and 9574 transitions. [2018-11-07 20:58:32,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 20:58:32,419 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 458 [2018-11-07 20:58:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:58:32,437 INFO L225 Difference]: With dead ends: 7469 [2018-11-07 20:58:32,438 INFO L226 Difference]: Without dead ends: 5145 [2018-11-07 20:58:32,446 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 471 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=1009, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 20:58:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5145 states. [2018-11-07 20:58:32,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5145 to 5142. [2018-11-07 20:58:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-11-07 20:58:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 6103 transitions. [2018-11-07 20:58:32,550 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 6103 transitions. Word has length 458 [2018-11-07 20:58:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:58:32,551 INFO L480 AbstractCegarLoop]: Abstraction has 5142 states and 6103 transitions. [2018-11-07 20:58:32,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 20:58:32,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 6103 transitions. [2018-11-07 20:58:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-11-07 20:58:32,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:58:32,568 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, 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, 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] [2018-11-07 20:58:32,568 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:58:32,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:58:32,568 INFO L82 PathProgramCache]: Analyzing trace with hash 41361605, now seen corresponding path program 1 times [2018-11-07 20:58:32,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:58:32,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:32,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:58:32,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:58:32,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:58:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:58:32,921 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:58:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 192 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 20:58:34,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:58:34,155 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:58:34,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 467 with the following transitions: [2018-11-07 20:58:34,155 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 20:58:34,159 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:58:34,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:58:34,563 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:58:34,563 INFO L272 AbstractInterpreter]: Visited 202 different actions 593 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:58:34,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:58:34,570 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:58:35,111 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-07 20:58:35,112 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:58:36,102 INFO L415 sIntCurrentIteration]: We unified 465 AI predicates to 465 [2018-11-07 20:58:36,102 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:58:36,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:58:36,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-07 20:58:36,103 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:58:36,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 20:58:36,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 20:58:36,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:58:36,105 INFO L87 Difference]: Start difference. First operand 5142 states and 6103 transitions. Second operand 17 states. [2018-11-07 20:58:38,110 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:58:44,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 20:58:44,895 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:58:44,900 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:58:44,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:58:44 BoogieIcfgContainer [2018-11-07 20:58:44,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:58:44,902 INFO L168 Benchmark]: Toolchain (without parser) took 221309.00 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -283.4 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-07 20:58:44,903 INFO L168 Benchmark]: CDTParser took 0.23 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 20:58:44,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1411.92 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:58:44,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 187.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -847.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 20:58:44,905 INFO L168 Benchmark]: Boogie Preprocessor took 173.11 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 20:58:44,905 INFO L168 Benchmark]: RCFGBuilder took 5742.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:58:44,906 INFO L168 Benchmark]: TraceAbstraction took 213787.04 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 234.4 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-07 20:58:44,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1411.92 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 187.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -847.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 173.11 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 5742.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213787.04 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 234.4 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was constructing difference of abstraction (5142states) and FLOYD_HOARE automaton (currently 21 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1185 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 213.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 186.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2302 SDtfs, 26003 SDslu, 1414 SDs, 0 SdLazy, 32083 SolverSat, 4416 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.0s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 2446 GetRequests, 2219 SyntacticMatches, 83 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5142occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9977373687877445 AbsIntWeakeningRatio, 0.07721359630717582 AbsIntAvgWeakeningVarsNumRemoved, 9.725136382710868 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 971 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2620 NumberOfCodeBlocks, 2620 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2612 ConstructedInterpolants, 0 QuantifiedInterpolants, 3939594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1594/2407 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown