java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:08:55,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:08:55,510 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:08:55,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:08:55,529 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:08:55,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:08:55,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:08:55,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:08:55,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:08:55,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:08:55,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:08:55,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:08:55,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:08:55,551 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:08:55,552 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:08:55,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:08:55,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:08:55,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:08:55,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:08:55,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:08:55,569 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:08:55,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:08:55,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:08:55,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:08:55,572 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:08:55,573 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:08:55,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:08:55,575 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:08:55,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:08:55,577 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:08:55,577 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:08:55,578 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:08:55,578 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:08:55,578 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:08:55,579 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:08:55,580 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:08:55,580 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:08:55,598 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:08:55,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:08:55,599 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:08:55,599 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:08:55,599 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:08:55,603 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:08:55,603 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:08:55,603 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:08:55,604 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:08:55,604 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:08:55,604 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:08:55,604 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:08:55,605 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:08:55,605 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:08:55,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:08:55,607 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:08:55,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:08:55,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:08:55,608 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:08:55,608 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:08:55,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:08:55,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:08:55,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:08:55,610 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:08:55,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:08:55,610 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:08:55,611 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:08:55,611 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:08:55,611 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:08:55,611 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:08:55,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:08:55,612 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:08:55,612 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:08:55,612 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:08:55,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:08:55,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:08:55,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:08:55,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:08:55,685 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:08:55,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label50_true-unreach-call.c [2018-11-07 04:08:55,768 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64f406f8b/5e9a08b325ac4e36a4a6c1ded6b4faf7/FLAG2520f21f8 [2018-11-07 04:08:56,537 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:08:56,538 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label50_true-unreach-call.c [2018-11-07 04:08:56,568 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64f406f8b/5e9a08b325ac4e36a4a6c1ded6b4faf7/FLAG2520f21f8 [2018-11-07 04:08:56,584 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64f406f8b/5e9a08b325ac4e36a4a6c1ded6b4faf7 [2018-11-07 04:08:56,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:08:56,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:08:56,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:08:56,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:08:56,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:08:56,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:56" (1/1) ... [2018-11-07 04:08:56,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d6e334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:56, skipping insertion in model container [2018-11-07 04:08:56,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:56" (1/1) ... [2018-11-07 04:08:56,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:08:56,781 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:08:57,901 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:08:57,906 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:08:58,386 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:08:58,415 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:08:58,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58 WrapperNode [2018-11-07 04:08:58,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:08:58,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:08:58,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:08:58,417 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:08:58,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:08:58,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:08:58,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:08:58,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:08:58,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... [2018-11-07 04:08:58,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:08:58,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:08:58,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:08:58,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:08:58,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:08:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:08:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:08:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:08:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:08:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:08:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:08:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:08:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:08:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:08:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:08:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:08:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:08:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:09:07,444 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:09:07,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:09:07 BoogieIcfgContainer [2018-11-07 04:09:07,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:09:07,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:09:07,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:09:07,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:09:07,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:08:56" (1/3) ... [2018-11-07 04:09:07,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d031ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:09:07, skipping insertion in model container [2018-11-07 04:09:07,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:58" (2/3) ... [2018-11-07 04:09:07,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d031ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:09:07, skipping insertion in model container [2018-11-07 04:09:07,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:09:07" (3/3) ... [2018-11-07 04:09:07,454 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label50_true-unreach-call.c [2018-11-07 04:09:07,464 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:09:07,475 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:09:07,494 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:09:07,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:09:07,542 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:09:07,542 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:09:07,542 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:09:07,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:09:07,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:09:07,543 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:09:07,543 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:09:07,582 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 04:09:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-07 04:09:07,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:07,594 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, 1] [2018-11-07 04:09:07,597 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:07,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:07,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1313897628, now seen corresponding path program 1 times [2018-11-07 04:09:07,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:07,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:07,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:07,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:07,656 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:09:08,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:09:08,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:09:08,206 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:08,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:09:08,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:09:08,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:09:08,237 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 04:09:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:09:14,945 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 04:09:14,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:09:14,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-11-07 04:09:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:09:14,994 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 04:09:14,994 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 04:09:15,012 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 04:09:15,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 04:09:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 04:09:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 04:09:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-11-07 04:09:15,191 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 70 [2018-11-07 04:09:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:09:15,192 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-11-07 04:09:15,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:09:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-11-07 04:09:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-07 04:09:15,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:15,212 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:09:15,212 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:15,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash -574735317, now seen corresponding path program 1 times [2018-11-07 04:09:15,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:15,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:15,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:15,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:15,216 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:15,570 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:09:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:09:15,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:09:15,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:09:15,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:15,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:09:15,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:09:15,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:09:15,974 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-11-07 04:09:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:09:24,490 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-11-07 04:09:24,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:09:24,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2018-11-07 04:09:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:09:24,514 INFO L225 Difference]: With dead ends: 4419 [2018-11-07 04:09:24,514 INFO L226 Difference]: Without dead ends: 2951 [2018-11-07 04:09:24,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:09:24,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-11-07 04:09:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-11-07 04:09:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-11-07 04:09:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-11-07 04:09:24,617 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 159 [2018-11-07 04:09:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:09:24,618 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-11-07 04:09:24,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:09:24,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-11-07 04:09:24,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-11-07 04:09:24,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:24,631 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, 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] [2018-11-07 04:09:24,632 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:24,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:24,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1205378606, now seen corresponding path program 1 times [2018-11-07 04:09:24,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:24,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:24,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:09:25,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:09:25,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:09:25,017 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:25,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:09:25,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:09:25,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:09:25,019 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-11-07 04:09:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:09:30,576 INFO L93 Difference]: Finished difference Result 6669 states and 11522 transitions. [2018-11-07 04:09:30,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:09:30,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2018-11-07 04:09:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:09:30,601 INFO L225 Difference]: With dead ends: 6669 [2018-11-07 04:09:30,601 INFO L226 Difference]: Without dead ends: 3747 [2018-11-07 04:09:30,610 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:09:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2018-11-07 04:09:30,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3689. [2018-11-07 04:09:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3689 states. [2018-11-07 04:09:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5891 transitions. [2018-11-07 04:09:30,723 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5891 transitions. Word has length 206 [2018-11-07 04:09:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:09:30,724 INFO L480 AbstractCegarLoop]: Abstraction has 3689 states and 5891 transitions. [2018-11-07 04:09:30,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:09:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5891 transitions. [2018-11-07 04:09:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-07 04:09:30,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:30,728 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, 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] [2018-11-07 04:09:30,729 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:30,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash 393503562, now seen corresponding path program 1 times [2018-11-07 04:09:30,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:30,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:30,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:30,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:30,731 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:09:31,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:09:31,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:09:31,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:31,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:09:31,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:09:31,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:09:31,018 INFO L87 Difference]: Start difference. First operand 3689 states and 5891 transitions. Second operand 6 states. [2018-11-07 04:09:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:09:36,063 INFO L93 Difference]: Finished difference Result 9623 states and 15373 transitions. [2018-11-07 04:09:36,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:09:36,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-11-07 04:09:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:09:36,090 INFO L225 Difference]: With dead ends: 9623 [2018-11-07 04:09:36,090 INFO L226 Difference]: Without dead ends: 5940 [2018-11-07 04:09:36,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:09:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2018-11-07 04:09:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5889. [2018-11-07 04:09:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5889 states. [2018-11-07 04:09:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 8064 transitions. [2018-11-07 04:09:36,234 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 8064 transitions. Word has length 208 [2018-11-07 04:09:36,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:09:36,235 INFO L480 AbstractCegarLoop]: Abstraction has 5889 states and 8064 transitions. [2018-11-07 04:09:36,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:09:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 8064 transitions. [2018-11-07 04:09:36,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-11-07 04:09:36,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:36,242 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:09:36,243 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:36,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:36,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1692616840, now seen corresponding path program 1 times [2018-11-07 04:09:36,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:36,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:36,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:36,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:36,245 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-07 04:09:36,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:09:36,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:09:36,572 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:36,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:09:36,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:09:36,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:09:36,574 INFO L87 Difference]: Start difference. First operand 5889 states and 8064 transitions. Second operand 4 states. [2018-11-07 04:09:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:09:44,897 INFO L93 Difference]: Finished difference Result 22501 states and 31632 transitions. [2018-11-07 04:09:44,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:09:44,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 266 [2018-11-07 04:09:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:09:44,956 INFO L225 Difference]: With dead ends: 22501 [2018-11-07 04:09:44,956 INFO L226 Difference]: Without dead ends: 16618 [2018-11-07 04:09:44,990 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:09:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2018-11-07 04:09:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 16618. [2018-11-07 04:09:45,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16618 states. [2018-11-07 04:09:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 21854 transitions. [2018-11-07 04:09:45,346 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 21854 transitions. Word has length 266 [2018-11-07 04:09:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:09:45,347 INFO L480 AbstractCegarLoop]: Abstraction has 16618 states and 21854 transitions. [2018-11-07 04:09:45,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:09:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 21854 transitions. [2018-11-07 04:09:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-11-07 04:09:45,365 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:09:45,365 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:09:45,365 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:09:45,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:45,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1237035280, now seen corresponding path program 1 times [2018-11-07 04:09:45,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:09:45,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:45,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:09:45,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:09:45,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:09:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:09:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 167 proven. 61 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:09:45,791 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:09:45,791 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:09:45,792 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-11-07 04:09:45,795 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2063], [2071], [2079], [2083], [2085], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:09:45,879 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:09:45,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:09:49,287 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:09:49,288 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 04:09:49,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:09:49,299 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:09:51,853 INFO L227 lantSequenceWeakener]: Weakened 302 states. On average, predicates are now at 78.12% of their original sizes. [2018-11-07 04:09:51,853 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:09:52,330 INFO L415 sIntCurrentIteration]: We unified 309 AI predicates to 309 [2018-11-07 04:09:52,331 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:09:52,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:09:52,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-07 04:09:52,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:09:52,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 04:09:52,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 04:09:52,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:09:52,334 INFO L87 Difference]: Start difference. First operand 16618 states and 21854 transitions. Second operand 7 states. [2018-11-07 04:09:55,126 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:11:36,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:11:36,732 INFO L93 Difference]: Finished difference Result 33935 states and 44530 transitions. [2018-11-07 04:11:36,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:11:36,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 310 [2018-11-07 04:11:36,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:11:36,787 INFO L225 Difference]: With dead ends: 33935 [2018-11-07 04:11:36,787 INFO L226 Difference]: Without dead ends: 17323 [2018-11-07 04:11:36,828 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 310 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:11:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17323 states. [2018-11-07 04:11:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17323 to 17321. [2018-11-07 04:11:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17321 states. [2018-11-07 04:11:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17321 states to 17321 states and 22569 transitions. [2018-11-07 04:11:37,140 INFO L78 Accepts]: Start accepts. Automaton has 17321 states and 22569 transitions. Word has length 310 [2018-11-07 04:11:37,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:11:37,140 INFO L480 AbstractCegarLoop]: Abstraction has 17321 states and 22569 transitions. [2018-11-07 04:11:37,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 04:11:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 17321 states and 22569 transitions. [2018-11-07 04:11:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2018-11-07 04:11:37,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:11:37,164 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-11-07 04:11:37,164 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:11:37,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:37,165 INFO L82 PathProgramCache]: Analyzing trace with hash 319477843, now seen corresponding path program 1 times [2018-11-07 04:11:37,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:11:37,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:37,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:11:37,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:11:37,166 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:11:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:11:37,673 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:11:37,870 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:11:38,097 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 04:11:38,511 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 04:11:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 248 proven. 283 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:11:39,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:11:39,051 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:11:39,051 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 498 with the following transitions: [2018-11-07 04:11:39,052 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2063], [2071], [2079], [2083], [2085], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 04:11:39,061 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:11:39,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:11:50,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:11:50,087 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 04:11:50,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:11:50,097 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:11:54,583 INFO L227 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 77.76% of their original sizes. [2018-11-07 04:11:54,583 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 04:12:42,908 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:12:42,913 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:12:42,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:12:42 BoogieIcfgContainer [2018-11-07 04:12:42,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:12:42,917 INFO L168 Benchmark]: Toolchain (without parser) took 226317.68 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 592.1 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,919 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:12:42,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1816.95 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -955.6 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,927 INFO L168 Benchmark]: Boogie Preprocessor took 244.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,927 INFO L168 Benchmark]: RCFGBuilder took 8495.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.8 MB). Peak memory consumption was 504.8 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,931 INFO L168 Benchmark]: TraceAbstraction took 215467.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:12:42,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1816.95 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 288.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -955.6 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 244.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8495.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 504.8 MB). Peak memory consumption was 504.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215467.42 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was analyzing trace of length 498 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 215.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 138.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2259 SDtfs, 11310 SDslu, 897 SDs, 0 SdLazy, 21530 SolverSat, 6039 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 96.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 350 GetRequests, 315 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17321occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9969641731929065 AbsIntWeakeningRatio, 0.07204968944099378 AbsIntAvgWeakeningVarsNumRemoved, 476.52298136645965 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 134 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1219 NumberOfCodeBlocks, 1219 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1213 ConstructedInterpolants, 0 QuantifiedInterpolants, 783805 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 576/637 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown