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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:25:26,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:25:26,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:25:26,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:25:26,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:25:26,530 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:25:26,531 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:25:26,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:25:26,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:25:26,538 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:25:26,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:25:26,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:25:26,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:25:26,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:25:26,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:25:26,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:25:26,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:25:26,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:25:26,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:25:26,551 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:25:26,552 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:25:26,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:25:26,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:25:26,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:25:26,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:25:26,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:25:26,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:25:26,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:25:26,560 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:25:26,561 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:25:26,561 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:25:26,562 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:25:26,562 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:25:26,563 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:25:26,564 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:25:26,564 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:25:26,565 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 18:25:26,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:25:26,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:25:26,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:25:26,581 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:25:26,581 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:25:26,582 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:25:26,582 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:25:26,582 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:25:26,582 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:25:26,582 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:25:26,582 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:25:26,583 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:25:26,583 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:25:26,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:25:26,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:25:26,585 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:25:26,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:25:26,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:25:26,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:25:26,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:25:26,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:25:26,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:25:26,586 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:25:26,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:25:26,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:25:26,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:25:26,587 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:25:26,587 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:25:26,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:25:26,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:25:26,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:25:26,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:25:26,651 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:25:26,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-14 18:25:27,004 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2beb6ebc1/ccf8be822c1146b692006581ce7a2fbd/FLAG9076a9686 [2018-09-14 18:25:27,595 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:25:27,596 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-14 18:25:27,663 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2beb6ebc1/ccf8be822c1146b692006581ce7a2fbd/FLAG9076a9686 [2018-09-14 18:25:27,680 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2beb6ebc1/ccf8be822c1146b692006581ce7a2fbd [2018-09-14 18:25:27,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:25:27,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:25:27,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:25:27,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:25:27,703 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:25:27,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:25:27" (1/1) ... [2018-09-14 18:25:27,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d3fed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:27, skipping insertion in model container [2018-09-14 18:25:27,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:25:27" (1/1) ... [2018-09-14 18:25:27,719 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:25:29,582 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:25:29,601 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:25:30,611 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:25:31,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31 WrapperNode [2018-09-14 18:25:31,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:25:31,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:25:31,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:25:31,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:25:31,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:31,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:31,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:25:31,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:25:31,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:25:31,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:25:32,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:32,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:32,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:32,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:33,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:33,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:33,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (1/1) ... [2018-09-14 18:25:33,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:25:33,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:25:33,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:25:33,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:25:33,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (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 [2018-09-14 18:25:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:25:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:25:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:25:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:25:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:25:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:25:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:25:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:25:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:25:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:25:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:25:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:25:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:25:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:25:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:25:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:25:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:25:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:25:51,830 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:25:51,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:25:51 BoogieIcfgContainer [2018-09-14 18:25:51,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:25:51,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:25:51,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:25:51,835 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:25:51,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:25:27" (1/3) ... [2018-09-14 18:25:51,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867cc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:25:51, skipping insertion in model container [2018-09-14 18:25:51,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:25:31" (2/3) ... [2018-09-14 18:25:51,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2867cc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:25:51, skipping insertion in model container [2018-09-14 18:25:51,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:25:51" (3/3) ... [2018-09-14 18:25:51,839 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-09-14 18:25:51,847 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:25:51,856 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:25:51,925 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:25:51,925 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:25:51,926 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:25:51,926 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:25:51,926 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:25:51,926 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:25:51,926 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:25:51,926 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:25:51,926 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:25:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:25:51,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-14 18:25:51,995 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:51,996 INFO L376 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] [2018-09-14 18:25:51,997 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:52,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1607603996, now seen corresponding path program 1 times [2018-09-14 18:25:52,004 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:52,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:52,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:52,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:52,062 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:25:52,586 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:25:52,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:25:52,587 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:52,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:25:52,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:25:52,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:25:52,612 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-14 18:26:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:26:17,952 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-09-14 18:26:17,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:26:17,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-09-14 18:26:17,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:18,011 INFO L225 Difference]: With dead ends: 6465 [2018-09-14 18:26:18,012 INFO L226 Difference]: Without dead ends: 4681 [2018-09-14 18:26:18,027 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:26:18,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-09-14 18:26:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-09-14 18:26:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-09-14 18:26:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-09-14 18:26:18,275 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 54 [2018-09-14 18:26:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:26:18,276 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-09-14 18:26:18,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 18:26:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-09-14 18:26:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-14 18:26:18,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:26:18,290 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:26:18,291 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:26:18,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1301823847, now seen corresponding path program 1 times [2018-09-14 18:26:18,292 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:26:18,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:18,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:18,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:18,295 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:26:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:18,697 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:26:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:26:19,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:26:19,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:26:19,087 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:26:19,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:26:19,089 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:26:19,090 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:26:19,090 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-09-14 18:26:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:26:48,994 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-09-14 18:26:48,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:26:48,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-09-14 18:26:48,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:49,051 INFO L225 Difference]: With dead ends: 12097 [2018-09-14 18:26:49,051 INFO L226 Difference]: Without dead ends: 8903 [2018-09-14 18:26:49,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:26:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-09-14 18:26:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-09-14 18:26:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-09-14 18:26:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-09-14 18:26:49,305 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 126 [2018-09-14 18:26:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:26:49,306 INFO L480 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-09-14 18:26:49,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:26:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-09-14 18:26:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-14 18:26:49,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:26:49,311 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:26:49,311 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:26:49,311 INFO L82 PathProgramCache]: Analyzing trace with hash -13978768, now seen corresponding path program 1 times [2018-09-14 18:26:49,311 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:26:49,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:49,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:26:49,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:26:49,313 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:26:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:26:49,601 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:26:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:26:50,004 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:26:50,004 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:26:50,004 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:26:50,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:26:50,005 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:26:50,005 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:26:50,006 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-09-14 18:27:18,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:18,012 INFO L93 Difference]: Finished difference Result 29443 states and 43438 transitions. [2018-09-14 18:27:18,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:27:18,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-09-14 18:27:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:18,099 INFO L225 Difference]: With dead ends: 29443 [2018-09-14 18:27:18,099 INFO L226 Difference]: Without dead ends: 20603 [2018-09-14 18:27:18,136 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 [2018-09-14 18:27:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2018-09-14 18:27:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20447. [2018-09-14 18:27:18,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20447 states. [2018-09-14 18:27:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20447 states to 20447 states and 28690 transitions. [2018-09-14 18:27:18,631 INFO L78 Accepts]: Start accepts. Automaton has 20447 states and 28690 transitions. Word has length 128 [2018-09-14 18:27:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:18,632 INFO L480 AbstractCegarLoop]: Abstraction has 20447 states and 28690 transitions. [2018-09-14 18:27:18,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:27:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand 20447 states and 28690 transitions. [2018-09-14 18:27:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-14 18:27:18,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:18,637 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:27:18,638 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:18,638 INFO L82 PathProgramCache]: Analyzing trace with hash 721795799, now seen corresponding path program 1 times [2018-09-14 18:27:18,638 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:18,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:18,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:18,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:18,640 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:19,141 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:19,141 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:27:19,141 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:19,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:27:19,142 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:27:19,142 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:27:19,142 INFO L87 Difference]: Start difference. First operand 20447 states and 28690 transitions. Second operand 6 states. [2018-09-14 18:27:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:27:44,741 INFO L93 Difference]: Finished difference Result 62296 states and 89747 transitions. [2018-09-14 18:27:44,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-14 18:27:44,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-09-14 18:27:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:27:44,896 INFO L225 Difference]: With dead ends: 62296 [2018-09-14 18:27:44,896 INFO L226 Difference]: Without dead ends: 41855 [2018-09-14 18:27:44,954 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:27:44,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41855 states. [2018-09-14 18:27:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41855 to 41518. [2018-09-14 18:27:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41518 states. [2018-09-14 18:27:45,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41518 states to 41518 states and 57765 transitions. [2018-09-14 18:27:45,888 INFO L78 Accepts]: Start accepts. Automaton has 41518 states and 57765 transitions. Word has length 136 [2018-09-14 18:27:45,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:27:45,888 INFO L480 AbstractCegarLoop]: Abstraction has 41518 states and 57765 transitions. [2018-09-14 18:27:45,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:27:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 41518 states and 57765 transitions. [2018-09-14 18:27:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-14 18:27:45,893 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:27:45,893 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:27:45,894 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:27:45,894 INFO L82 PathProgramCache]: Analyzing trace with hash -179031743, now seen corresponding path program 1 times [2018-09-14 18:27:45,894 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:27:45,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:45,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:27:45,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:27:45,899 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:27:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:27:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:27:46,248 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:27:46,248 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:27:46,248 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:27:46,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:27:46,249 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:27:46,249 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:27:46,252 INFO L87 Difference]: Start difference. First operand 41518 states and 57765 transitions. Second operand 5 states. [2018-09-14 18:28:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:12,878 INFO L93 Difference]: Finished difference Result 125877 states and 180446 transitions. [2018-09-14 18:28:12,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:28:12,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-09-14 18:28:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:13,123 INFO L225 Difference]: With dead ends: 125877 [2018-09-14 18:28:13,124 INFO L226 Difference]: Without dead ends: 84365 [2018-09-14 18:28:13,193 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 18:28:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84365 states. [2018-09-14 18:28:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84365 to 83171. [2018-09-14 18:28:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83171 states. [2018-09-14 18:28:14,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83171 states to 83171 states and 107199 transitions. [2018-09-14 18:28:14,518 INFO L78 Accepts]: Start accepts. Automaton has 83171 states and 107199 transitions. Word has length 156 [2018-09-14 18:28:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:14,518 INFO L480 AbstractCegarLoop]: Abstraction has 83171 states and 107199 transitions. [2018-09-14 18:28:14,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:28:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 83171 states and 107199 transitions. [2018-09-14 18:28:14,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-14 18:28:14,524 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:14,524 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:28:14,525 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:14,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1693657294, now seen corresponding path program 1 times [2018-09-14 18:28:14,525 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:14,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:14,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:14,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:14,526 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:14,818 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:28:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:28:15,236 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:28:15,236 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:28:15,236 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:15,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:28:15,237 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:28:15,237 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:28:15,237 INFO L87 Difference]: Start difference. First operand 83171 states and 107199 transitions. Second operand 6 states. [2018-09-14 18:28:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:31,560 INFO L93 Difference]: Finished difference Result 188147 states and 253092 transitions. [2018-09-14 18:28:31,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:28:31,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-09-14 18:28:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:28:31,831 INFO L225 Difference]: With dead ends: 188147 [2018-09-14 18:28:31,831 INFO L226 Difference]: Without dead ends: 104982 [2018-09-14 18:28:31,953 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 [2018-09-14 18:28:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104982 states. [2018-09-14 18:28:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104982 to 104219. [2018-09-14 18:28:33,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104219 states. [2018-09-14 18:28:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104219 states to 104219 states and 134707 transitions. [2018-09-14 18:28:33,571 INFO L78 Accepts]: Start accepts. Automaton has 104219 states and 134707 transitions. Word has length 219 [2018-09-14 18:28:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:28:33,571 INFO L480 AbstractCegarLoop]: Abstraction has 104219 states and 134707 transitions. [2018-09-14 18:28:33,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:28:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 104219 states and 134707 transitions. [2018-09-14 18:28:33,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-14 18:28:33,585 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:28:33,586 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:28:33,586 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:28:33,587 INFO L82 PathProgramCache]: Analyzing trace with hash -2000312291, now seen corresponding path program 1 times [2018-09-14 18:28:33,587 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:28:33,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:33,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:28:33,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:28:33,588 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:28:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:28:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:28:35,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:28:35,047 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:28:35,047 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:28:35,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:28:35,049 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:28:35,049 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:28:35,049 INFO L87 Difference]: Start difference. First operand 104219 states and 134707 transitions. Second operand 4 states. [2018-09-14 18:28:59,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:28:59,515 INFO L93 Difference]: Finished difference Result 299286 states and 404830 transitions. [2018-09-14 18:28:59,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:28:59,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 541 [2018-09-14 18:28:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:29:00,006 INFO L225 Difference]: With dead ends: 299286 [2018-09-14 18:29:00,006 INFO L226 Difference]: Without dead ends: 195073 [2018-09-14 18:29:00,171 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 [2018-09-14 18:29:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195073 states. [2018-09-14 18:29:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195073 to 194768. [2018-09-14 18:29:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194768 states. [2018-09-14 18:29:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194768 states to 194768 states and 253325 transitions. [2018-09-14 18:29:03,122 INFO L78 Accepts]: Start accepts. Automaton has 194768 states and 253325 transitions. Word has length 541 [2018-09-14 18:29:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:29:03,123 INFO L480 AbstractCegarLoop]: Abstraction has 194768 states and 253325 transitions. [2018-09-14 18:29:03,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 18:29:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 194768 states and 253325 transitions. [2018-09-14 18:29:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2018-09-14 18:29:03,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:29:03,152 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 18:29:03,153 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:29:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1092730453, now seen corresponding path program 1 times [2018-09-14 18:29:03,153 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:29:03,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:03,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:29:03,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:29:03,154 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:29:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:29:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:29:03,826 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:29:03,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:29:03,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:29:03,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:29:03,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:29:03,827 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:29:03,828 INFO L87 Difference]: Start difference. First operand 194768 states and 253325 transitions. Second operand 4 states. Received shutdown request... [2018-09-14 18:29:22,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:29:22,757 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:29:22,764 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:29:22,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:29:22 BoogieIcfgContainer [2018-09-14 18:29:22,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:29:22,765 INFO L168 Benchmark]: Toolchain (without parser) took 235073.46 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,766 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-14 18:29:22,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3689.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 225.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -144.6 MB). Peak memory consumption was 488.3 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 349.71 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,768 INFO L168 Benchmark]: Boogie Preprocessor took 1712.94 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 847.2 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -874.9 MB). Peak memory consumption was 127.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,769 INFO L168 Benchmark]: RCFGBuilder took 18382.72 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 300.9 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 107.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,770 INFO L168 Benchmark]: TraceAbstraction took 210932.06 ms. Allocated memory was 2.9 GB in the beginning and 3.2 GB in the end (delta: 348.7 MB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 953.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-14 18:29:22,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3689.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 225.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -144.6 MB). Peak memory consumption was 488.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 349.71 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1712.94 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 847.2 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -874.9 MB). Peak memory consumption was 127.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18382.72 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 300.9 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 107.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 210932.06 ms. Allocated memory was 2.9 GB in the beginning and 3.2 GB in the end (delta: 348.7 MB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 953.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (194768states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (383477 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 197.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7501 SDtfs, 49275 SDslu, 5545 SDs, 0 SdLazy, 78466 SolverSat, 21115 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 167.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194768occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 4293 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 2008 NumberOfCodeBlocks, 2008 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2000 ConstructedInterpolants, 0 QuantifiedInterpolants, 1429224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 329/329 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-29-22-789.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_18-29-22-789.csv Completed graceful shutdown