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_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 18:22:21,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 18:22:21,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 18:22:21,358 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 18:22:21,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 18:22:21,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 18:22:21,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 18:22:21,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 18:22:21,364 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 18:22:21,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 18:22:21,366 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 18:22:21,366 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 18:22:21,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 18:22:21,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 18:22:21,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 18:22:21,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 18:22:21,371 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 18:22:21,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 18:22:21,375 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 18:22:21,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 18:22:21,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 18:22:21,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 18:22:21,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 18:22:21,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 18:22:21,382 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 18:22:21,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 18:22:21,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 18:22:21,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 18:22:21,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 18:22:21,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 18:22:21,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 18:22:21,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 18:22:21,388 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 18:22:21,388 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 18:22:21,389 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 18:22:21,390 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 18:22:21,396 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 18:22:21,423 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 18:22:21,424 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 18:22:21,425 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 18:22:21,425 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 18:22:21,425 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 18:22:21,427 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 18:22:21,427 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 18:22:21,427 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 18:22:21,427 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 18:22:21,428 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 18:22:21,428 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 18:22:21,429 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 18:22:21,429 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 18:22:21,429 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 18:22:21,430 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 18:22:21,430 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 18:22:21,430 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 18:22:21,430 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 18:22:21,430 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 18:22:21,430 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 18:22:21,431 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 18:22:21,431 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 18:22:21,431 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 18:22:21,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 18:22:21,433 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 18:22:21,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 18:22:21,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 18:22:21,434 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 18:22:21,434 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 18:22:21,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 18:22:21,434 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 18:22:21,435 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 18:22:21,435 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 18:22:21,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 18:22:21,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 18:22:21,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 18:22:21,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 18:22:21,525 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 18:22:21,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-09-14 18:22:21,870 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c7b19bd/f9d1ce931bd04466a2d21028fb56601a/FLAG7a0bf78e9 [2018-09-14 18:22:22,469 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 18:22:22,470 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-09-14 18:22:22,516 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c7b19bd/f9d1ce931bd04466a2d21028fb56601a/FLAG7a0bf78e9 [2018-09-14 18:22:22,531 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c7b19bd/f9d1ce931bd04466a2d21028fb56601a [2018-09-14 18:22:22,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 18:22:22,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 18:22:22,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 18:22:22,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 18:22:22,559 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 18:22:22,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:22:22" (1/1) ... [2018-09-14 18:22:22,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:22, skipping insertion in model container [2018-09-14 18:22:22,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 06:22:22" (1/1) ... [2018-09-14 18:22:22,576 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 18:22:24,607 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:22:24,628 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 18:22:25,676 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 18:22:26,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26 WrapperNode [2018-09-14 18:22:26,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 18:22:26,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 18:22:26,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 18:22:26,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 18:22:26,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:26,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:27,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 18:22:27,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 18:22:27,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 18:22:27,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 18:22:27,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:27,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:27,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:27,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:28,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:28,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:28,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (1/1) ... [2018-09-14 18:22:28,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 18:22:28,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 18:22:28,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 18:22:28,391 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 18:22:28,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (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 18:22:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 18:22:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 18:22:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 18:22:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 18:22:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 18:22:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 18:22:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 18:22:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 18:22:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 18:22:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 18:22:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 18:22:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 18:22:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 18:22:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 18:22:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 18:22:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 18:22:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 18:22:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 18:22:46,777 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 18:22:46,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:22:46 BoogieIcfgContainer [2018-09-14 18:22:46,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 18:22:46,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 18:22:46,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 18:22:46,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 18:22:46,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 06:22:22" (1/3) ... [2018-09-14 18:22:46,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68160085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:22:46, skipping insertion in model container [2018-09-14 18:22:46,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 06:22:26" (2/3) ... [2018-09-14 18:22:46,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68160085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 06:22:46, skipping insertion in model container [2018-09-14 18:22:46,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 06:22:46" (3/3) ... [2018-09-14 18:22:46,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label25_true-unreach-call.c [2018-09-14 18:22:46,794 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 18:22:46,806 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 18:22:46,878 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 18:22:46,879 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 18:22:46,879 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 18:22:46,879 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 18:22:46,879 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 18:22:46,879 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 18:22:46,879 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 18:22:46,879 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 18:22:46,880 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 18:22:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-14 18:22:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-14 18:22:46,950 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:22:46,951 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] [2018-09-14 18:22:46,952 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:22:46,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2043790486, now seen corresponding path program 1 times [2018-09-14 18:22:46,961 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:22:47,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:47,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:22:47,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:22:47,016 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:22:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:22:47,477 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-14 18:22:47,513 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 18:22:47,516 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:22:47,516 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:22:47,516 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:22:47,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:22:47,538 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:22:47,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:22:47,541 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-14 18:23:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:13,383 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-09-14 18:23:13,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:23:13,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-09-14 18:23:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:13,447 INFO L225 Difference]: With dead ends: 6465 [2018-09-14 18:23:13,447 INFO L226 Difference]: Without dead ends: 4681 [2018-09-14 18:23:13,466 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 18:23:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-09-14 18:23:13,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-09-14 18:23:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-09-14 18:23:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-09-14 18:23:13,711 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 43 [2018-09-14 18:23:13,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:13,713 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-09-14 18:23:13,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 18:23:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-09-14 18:23:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-14 18:23:13,725 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:13,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:23:13,726 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:13,726 INFO L82 PathProgramCache]: Analyzing trace with hash 96835924, now seen corresponding path program 1 times [2018-09-14 18:23:13,726 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:13,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:13,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:13,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:13,729 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:14,078 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:23:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:23:14,464 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:23:14,464 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:23:14,464 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:14,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:23:14,466 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:23:14,466 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:23:14,467 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-09-14 18:23:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:23:41,999 INFO L93 Difference]: Finished difference Result 12109 states and 19736 transitions. [2018-09-14 18:23:42,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:23:42,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-09-14 18:23:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:23:42,055 INFO L225 Difference]: With dead ends: 12109 [2018-09-14 18:23:42,055 INFO L226 Difference]: Without dead ends: 8915 [2018-09-14 18:23:42,070 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:23:42,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2018-09-14 18:23:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 8858. [2018-09-14 18:23:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8858 states. [2018-09-14 18:23:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 12721 transitions. [2018-09-14 18:23:42,336 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 12721 transitions. Word has length 115 [2018-09-14 18:23:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:23:42,337 INFO L480 AbstractCegarLoop]: Abstraction has 8858 states and 12721 transitions. [2018-09-14 18:23:42,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:23:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 12721 transitions. [2018-09-14 18:23:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-09-14 18:23:42,350 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:23:42,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:23:42,350 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:23:42,351 INFO L82 PathProgramCache]: Analyzing trace with hash 554705181, now seen corresponding path program 1 times [2018-09-14 18:23:42,351 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:23:42,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:42,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:23:42,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:23:42,352 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:23:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:23:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:23:42,627 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:23:42,627 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:23:42,627 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:23:42,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:23:42,628 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:23:42,628 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:23:42,629 INFO L87 Difference]: Start difference. First operand 8858 states and 12721 transitions. Second operand 6 states. [2018-09-14 18:24:05,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:24:05,872 INFO L93 Difference]: Finished difference Result 29455 states and 43460 transitions. [2018-09-14 18:24:05,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:24:05,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-09-14 18:24:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:24:05,951 INFO L225 Difference]: With dead ends: 29455 [2018-09-14 18:24:05,951 INFO L226 Difference]: Without dead ends: 20603 [2018-09-14 18:24:05,988 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 [2018-09-14 18:24:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2018-09-14 18:24:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20447. [2018-09-14 18:24:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20447 states. [2018-09-14 18:24:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20447 states to 20447 states and 28690 transitions. [2018-09-14 18:24:06,456 INFO L78 Accepts]: Start accepts. Automaton has 20447 states and 28690 transitions. Word has length 117 [2018-09-14 18:24:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:24:06,456 INFO L480 AbstractCegarLoop]: Abstraction has 20447 states and 28690 transitions. [2018-09-14 18:24:06,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:24:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 20447 states and 28690 transitions. [2018-09-14 18:24:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-14 18:24:06,461 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:24:06,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:06,461 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:24:06,466 INFO L82 PathProgramCache]: Analyzing trace with hash -730954474, now seen corresponding path program 1 times [2018-09-14 18:24:06,466 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:24:06,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:06,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:06,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:06,467 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:24:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:24:06,953 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:24:06,953 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:24:06,953 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:24:06,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:24:06,954 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:24:06,954 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:24:06,955 INFO L87 Difference]: Start difference. First operand 20447 states and 28690 transitions. Second operand 6 states. [2018-09-14 18:24:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:24:30,286 INFO L93 Difference]: Finished difference Result 62296 states and 89748 transitions. [2018-09-14 18:24:30,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-14 18:24:30,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-09-14 18:24:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:24:30,431 INFO L225 Difference]: With dead ends: 62296 [2018-09-14 18:24:30,432 INFO L226 Difference]: Without dead ends: 41855 [2018-09-14 18:24:30,487 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 18:24:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41855 states. [2018-09-14 18:24:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41855 to 41518. [2018-09-14 18:24:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41518 states. [2018-09-14 18:24:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41518 states to 41518 states and 57765 transitions. [2018-09-14 18:24:31,350 INFO L78 Accepts]: Start accepts. Automaton has 41518 states and 57765 transitions. Word has length 125 [2018-09-14 18:24:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:24:31,350 INFO L480 AbstractCegarLoop]: Abstraction has 41518 states and 57765 transitions. [2018-09-14 18:24:31,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:24:31,350 INFO L276 IsEmpty]: Start isEmpty. Operand 41518 states and 57765 transitions. [2018-09-14 18:24:31,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-14 18:24:31,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:24:31,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:31,354 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:24:31,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1382979436, now seen corresponding path program 1 times [2018-09-14 18:24:31,356 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:24:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:31,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:24:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:24:31,358 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:24:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:24:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:24:31,695 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:24:31,695 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 18:24:31,695 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:24:31,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 18:24:31,696 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 18:24:31,697 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 18:24:31,697 INFO L87 Difference]: Start difference. First operand 41518 states and 57765 transitions. Second operand 5 states. [2018-09-14 18:25:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:01,130 INFO L93 Difference]: Finished difference Result 125877 states and 180447 transitions. [2018-09-14 18:25:01,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 18:25:01,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-09-14 18:25:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:25:01,383 INFO L225 Difference]: With dead ends: 125877 [2018-09-14 18:25:01,384 INFO L226 Difference]: Without dead ends: 84365 [2018-09-14 18:25:01,452 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 18:25:01,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84365 states. [2018-09-14 18:25:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84365 to 83175. [2018-09-14 18:25:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83175 states. [2018-09-14 18:25:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83175 states to 83175 states and 107221 transitions. [2018-09-14 18:25:02,879 INFO L78 Accepts]: Start accepts. Automaton has 83175 states and 107221 transitions. Word has length 145 [2018-09-14 18:25:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:25:02,882 INFO L480 AbstractCegarLoop]: Abstraction has 83175 states and 107221 transitions. [2018-09-14 18:25:02,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 18:25:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 83175 states and 107221 transitions. [2018-09-14 18:25:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-14 18:25:02,889 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:02,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:02,891 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:02,892 INFO L82 PathProgramCache]: Analyzing trace with hash 544420257, now seen corresponding path program 1 times [2018-09-14 18:25:02,892 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:02,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:02,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:02,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:02,893 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:03,202 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 18:25:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:25:03,366 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:25:03,366 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 18:25:03,366 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:03,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 18:25:03,367 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 18:25:03,367 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 18:25:03,367 INFO L87 Difference]: Start difference. First operand 83175 states and 107221 transitions. Second operand 6 states. [2018-09-14 18:25:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:21,308 INFO L93 Difference]: Finished difference Result 188193 states and 253250 transitions. [2018-09-14 18:25:21,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 18:25:21,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-09-14 18:25:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:25:21,621 INFO L225 Difference]: With dead ends: 188193 [2018-09-14 18:25:21,622 INFO L226 Difference]: Without dead ends: 105024 [2018-09-14 18:25:21,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 18:25:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105024 states. [2018-09-14 18:25:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105024 to 104235. [2018-09-14 18:25:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104235 states. [2018-09-14 18:25:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104235 states to 104235 states and 134721 transitions. [2018-09-14 18:25:23,489 INFO L78 Accepts]: Start accepts. Automaton has 104235 states and 134721 transitions. Word has length 208 [2018-09-14 18:25:23,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:25:23,491 INFO L480 AbstractCegarLoop]: Abstraction has 104235 states and 134721 transitions. [2018-09-14 18:25:23,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 18:25:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 104235 states and 134721 transitions. [2018-09-14 18:25:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2018-09-14 18:25:23,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:23,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:23,507 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:23,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1346825870, now seen corresponding path program 1 times [2018-09-14 18:25:23,507 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:23,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:23,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:23,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:23,509 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:25:24,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:25:24,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:25:24,044 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:24,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:25:24,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:25:24,046 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:25:24,046 INFO L87 Difference]: Start difference. First operand 104235 states and 134721 transitions. Second operand 4 states. [2018-09-14 18:25:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:25:46,889 INFO L93 Difference]: Finished difference Result 296509 states and 401443 transitions. [2018-09-14 18:25:46,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:25:46,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 530 [2018-09-14 18:25:46,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:25:47,465 INFO L225 Difference]: With dead ends: 296509 [2018-09-14 18:25:47,466 INFO L226 Difference]: Without dead ends: 192280 [2018-09-14 18:25:47,669 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 18:25:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192280 states. [2018-09-14 18:25:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192280 to 191982. [2018-09-14 18:25:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191982 states. [2018-09-14 18:25:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191982 states to 191982 states and 249998 transitions. [2018-09-14 18:25:51,628 INFO L78 Accepts]: Start accepts. Automaton has 191982 states and 249998 transitions. Word has length 530 [2018-09-14 18:25:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 18:25:51,629 INFO L480 AbstractCegarLoop]: Abstraction has 191982 states and 249998 transitions. [2018-09-14 18:25:51,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 18:25:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 191982 states and 249998 transitions. [2018-09-14 18:25:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2018-09-14 18:25:51,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 18:25:51,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:51,656 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 18:25:51,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1115290536, now seen corresponding path program 1 times [2018-09-14 18:25:51,657 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 18:25:51,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:51,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 18:25:51,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 18:25:51,658 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 18:25:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 18:25:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 18:25:52,236 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 18:25:52,236 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 18:25:52,236 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 18:25:52,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 18:25:52,237 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 18:25:52,237 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:25:52,237 INFO L87 Difference]: Start difference. First operand 191982 states and 249998 transitions. Second operand 4 states. [2018-09-14 18:26:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 18:26:14,547 INFO L93 Difference]: Finished difference Result 440432 states and 585066 transitions. [2018-09-14 18:26:14,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 18:26:14,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 637 [2018-09-14 18:26:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 18:26:15,159 INFO L225 Difference]: With dead ends: 440432 [2018-09-14 18:26:15,159 INFO L226 Difference]: Without dead ends: 248456 [2018-09-14 18:26:15,446 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 18:26:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248456 states. Received shutdown request... [2018-09-14 18:26:17,645 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 18:26:17,650 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 18:26:17,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 06:26:17 BoogieIcfgContainer [2018-09-14 18:26:17,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 18:26:17,651 INFO L168 Benchmark]: Toolchain (without parser) took 235107.79 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 39.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,653 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 18:26:17,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3753.68 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 226.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.1 MB). Peak memory consumption was 492.6 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 1441.46 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 784.9 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -811.2 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,655 INFO L168 Benchmark]: Boogie Preprocessor took 643.85 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 99.2 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,656 INFO L168 Benchmark]: RCFGBuilder took 18387.40 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 329.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.3 MB). Peak memory consumption was 953.1 MB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,657 INFO L168 Benchmark]: TraceAbstraction took 210871.59 ms. Allocated memory was 2.9 GB in the beginning and 3.2 GB in the end (delta: 306.7 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 839.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-14 18:26:17,669 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 3753.68 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 226.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.1 MB). Peak memory consumption was 492.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1441.46 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 784.9 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -811.2 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 643.85 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 99.2 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18387.40 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 329.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.3 MB). Peak memory consumption was 953.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210871.59 ms. Allocated memory was 2.9 GB in the beginning and 3.2 GB in the end (delta: 306.7 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 839.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.7s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 195.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7935 SDtfs, 49279 SDslu, 5544 SDs, 0 SdLazy, 78957 SolverSat, 20824 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 160.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191982occurred 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: 11.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 4308 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1920 NumberOfCodeBlocks, 1920 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1912 ConstructedInterpolants, 0 QuantifiedInterpolants, 1306647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 252/252 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_label25_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_18-26-17-688.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label25_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_18-26-17-688.csv Completed graceful shutdown