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/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:27:51,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:27:51,320 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:27:51,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:27:51,338 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:27:51,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:27:51,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:27:51,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:27:51,348 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:27:51,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:27:51,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:27:51,358 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:27:51,359 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:27:51,362 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:27:51,365 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:27:51,366 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:27:51,367 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:27:51,369 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:27:51,371 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:27:51,372 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:27:51,374 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:27:51,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:27:51,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:27:51,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:27:51,378 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:27:51,379 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:27:51,380 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:27:51,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:27:51,381 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:27:51,383 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:27:51,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:27:51,383 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:27:51,384 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:27:51,384 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:27:51,385 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:27:51,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:27:51,386 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 [2018-09-18 11:27:51,415 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:27:51,415 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:27:51,416 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:27:51,419 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:27:51,420 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:27:51,420 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:27:51,420 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:27:51,420 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:27:51,420 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:27:51,421 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:27:51,421 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:27:51,421 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:27:51,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:27:51,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:27:51,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:27:51,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:27:51,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:27:51,424 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:27:51,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:27:51,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:27:51,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:27:51,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:27:51,425 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:27:51,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:27:51,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:27:51,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:27:51,426 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:27:51,426 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:27:51,426 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:27:51,426 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:27:51,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:27:51,427 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:27:51,427 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:27:51,427 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:27:51,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:27:51,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:27:51,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:27:51,510 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:27:51,510 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:27:51,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-18 11:27:51,858 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d877228c/ee6f07509b9747e0865b81ac8abfe646/FLAG8a4081483 [2018-09-18 11:27:52,328 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:27:52,330 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-09-18 11:27:52,360 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d877228c/ee6f07509b9747e0865b81ac8abfe646/FLAG8a4081483 [2018-09-18 11:27:52,378 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d877228c/ee6f07509b9747e0865b81ac8abfe646 [2018-09-18 11:27:52,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:27:52,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:27:52,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:27:52,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:27:52,409 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:27:52,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:27:52" (1/1) ... [2018-09-18 11:27:52,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d945458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:52, skipping insertion in model container [2018-09-18 11:27:52,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:27:52" (1/1) ... [2018-09-18 11:27:52,430 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:27:53,736 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:27:53,758 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:27:54,792 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:27:55,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55 WrapperNode [2018-09-18 11:27:55,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:27:55,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:27:55,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:27:55,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:27:55,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:55,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:55,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:27:55,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:27:55,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:27:55,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:27:55,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:55,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:55,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:55,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:56,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:56,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:56,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (1/1) ... [2018-09-18 11:27:56,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:27:56,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:27:56,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:27:56,194 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:27:56,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (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 [2018-09-18 11:27:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:27:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:27:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:27:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:27:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:27:56,270 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:27:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:27:56,270 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:27:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:27:56,270 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:27:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:27:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:27:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:27:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:28:06,574 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:28:06,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:28:06 BoogieIcfgContainer [2018-09-18 11:28:06,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:28:06,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:28:06,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:28:06,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:28:06,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:27:52" (1/3) ... [2018-09-18 11:28:06,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217a2102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:28:06, skipping insertion in model container [2018-09-18 11:28:06,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:27:55" (2/3) ... [2018-09-18 11:28:06,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217a2102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:28:06, skipping insertion in model container [2018-09-18 11:28:06,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:28:06" (3/3) ... [2018-09-18 11:28:06,583 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-09-18 11:28:06,593 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:28:06,605 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:28:06,666 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:28:06,667 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:28:06,667 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:28:06,668 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:28:06,668 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:28:06,668 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:28:06,668 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:28:06,668 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:28:06,668 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:28:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-18 11:28:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-18 11:28:06,720 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:28:06,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:28:06,722 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:28:06,728 INFO L82 PathProgramCache]: Analyzing trace with hash -629755477, now seen corresponding path program 1 times [2018-09-18 11:28:06,731 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:28:06,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:06,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:06,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:06,785 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:28:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:07,259 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:28:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:07,543 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:28:07,543 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:28:07,544 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:28:07,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:28:07,577 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:28:07,578 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:28:07,581 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-09-18 11:28:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:28:18,271 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-09-18 11:28:18,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:28:18,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-09-18 11:28:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:28:18,320 INFO L225 Difference]: With dead ends: 2446 [2018-09-18 11:28:18,320 INFO L226 Difference]: Without dead ends: 1604 [2018-09-18 11:28:18,338 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:28:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-09-18 11:28:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-09-18 11:28:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-18 11:28:18,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-09-18 11:28:18,541 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 67 [2018-09-18 11:28:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:28:18,542 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-09-18 11:28:18,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:28:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-09-18 11:28:18,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-18 11:28:18,555 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:28:18,556 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, 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] [2018-09-18 11:28:18,556 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:28:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1436302644, now seen corresponding path program 1 times [2018-09-18 11:28:18,557 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:28:18,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:18,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:18,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:18,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:28:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:18,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:28:18,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:28:18,942 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:28:18,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:28:18,944 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:28:18,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:28:18,945 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-09-18 11:28:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:28:34,388 INFO L93 Difference]: Finished difference Result 6336 states and 12138 transitions. [2018-09-18 11:28:34,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:28:34,400 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-09-18 11:28:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:28:34,433 INFO L225 Difference]: With dead ends: 6336 [2018-09-18 11:28:34,433 INFO L226 Difference]: Without dead ends: 4738 [2018-09-18 11:28:34,442 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:28:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2018-09-18 11:28:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 4703. [2018-09-18 11:28:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4703 states. [2018-09-18 11:28:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 7682 transitions. [2018-09-18 11:28:34,598 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 7682 transitions. Word has length 145 [2018-09-18 11:28:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:28:34,599 INFO L480 AbstractCegarLoop]: Abstraction has 4703 states and 7682 transitions. [2018-09-18 11:28:34,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:28:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 7682 transitions. [2018-09-18 11:28:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-18 11:28:34,603 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:28:34,604 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, 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] [2018-09-18 11:28:34,604 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:28:34,604 INFO L82 PathProgramCache]: Analyzing trace with hash -659539728, now seen corresponding path program 1 times [2018-09-18 11:28:34,605 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:28:34,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:34,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:34,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:34,606 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:28:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:34,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:28:34,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:28:34,849 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:28:34,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:28:34,849 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:28:34,850 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:28:34,850 INFO L87 Difference]: Start difference. First operand 4703 states and 7682 transitions. Second operand 5 states. [2018-09-18 11:28:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:28:43,557 INFO L93 Difference]: Finished difference Result 14309 states and 23694 transitions. [2018-09-18 11:28:43,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:28:43,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-09-18 11:28:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:28:43,615 INFO L225 Difference]: With dead ends: 14309 [2018-09-18 11:28:43,615 INFO L226 Difference]: Without dead ends: 9612 [2018-09-18 11:28:43,632 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:28:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2018-09-18 11:28:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 9532. [2018-09-18 11:28:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9532 states. [2018-09-18 11:28:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9532 states to 9532 states and 14374 transitions. [2018-09-18 11:28:44,070 INFO L78 Accepts]: Start accepts. Automaton has 9532 states and 14374 transitions. Word has length 147 [2018-09-18 11:28:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:28:44,071 INFO L480 AbstractCegarLoop]: Abstraction has 9532 states and 14374 transitions. [2018-09-18 11:28:44,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:28:44,071 INFO L276 IsEmpty]: Start isEmpty. Operand 9532 states and 14374 transitions. [2018-09-18 11:28:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-18 11:28:44,076 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:28:44,077 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:28:44,077 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:28:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash -731114027, now seen corresponding path program 1 times [2018-09-18 11:28:44,078 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:28:44,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:44,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:44,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:44,083 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:28:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:44,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:28:44,511 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:28:44,511 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:28:44,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:28:44,512 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:28:44,512 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:28:44,512 INFO L87 Difference]: Start difference. First operand 9532 states and 14374 transitions. Second operand 6 states. [2018-09-18 11:29:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:29:08,466 INFO L93 Difference]: Finished difference Result 38119 states and 61201 transitions. [2018-09-18 11:29:08,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:29:08,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-09-18 11:29:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:29:08,627 INFO L225 Difference]: With dead ends: 38119 [2018-09-18 11:29:08,627 INFO L226 Difference]: Without dead ends: 28593 [2018-09-18 11:29:08,688 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:29:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28593 states. [2018-09-18 11:29:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28593 to 28537. [2018-09-18 11:29:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28537 states. [2018-09-18 11:29:09,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28537 states to 28537 states and 41803 transitions. [2018-09-18 11:29:09,376 INFO L78 Accepts]: Start accepts. Automaton has 28537 states and 41803 transitions. Word has length 158 [2018-09-18 11:29:09,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:29:09,377 INFO L480 AbstractCegarLoop]: Abstraction has 28537 states and 41803 transitions. [2018-09-18 11:29:09,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:29:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 28537 states and 41803 transitions. [2018-09-18 11:29:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-18 11:29:09,383 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:29:09,384 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, 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] [2018-09-18 11:29:09,384 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:29:09,384 INFO L82 PathProgramCache]: Analyzing trace with hash -90858887, now seen corresponding path program 1 times [2018-09-18 11:29:09,384 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:29:09,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:09,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:29:09,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:09,386 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:29:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:29:09,704 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:29:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:29:10,131 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:29:10,131 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:29:10,131 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:29:10,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:29:10,132 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:29:10,132 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:29:10,133 INFO L87 Difference]: Start difference. First operand 28537 states and 41803 transitions. Second operand 6 states. [2018-09-18 11:29:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:29:22,743 INFO L93 Difference]: Finished difference Result 79352 states and 123981 transitions. [2018-09-18 11:29:22,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:29:22,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-09-18 11:29:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:29:22,970 INFO L225 Difference]: With dead ends: 79352 [2018-09-18 11:29:22,970 INFO L226 Difference]: Without dead ends: 50821 [2018-09-18 11:29:23,071 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 [2018-09-18 11:29:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50821 states. [2018-09-18 11:29:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50821 to 50659. [2018-09-18 11:29:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50659 states. [2018-09-18 11:29:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50659 states to 50659 states and 72612 transitions. [2018-09-18 11:29:24,741 INFO L78 Accepts]: Start accepts. Automaton has 50659 states and 72612 transitions. Word has length 192 [2018-09-18 11:29:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:29:24,741 INFO L480 AbstractCegarLoop]: Abstraction has 50659 states and 72612 transitions. [2018-09-18 11:29:24,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:29:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 50659 states and 72612 transitions. [2018-09-18 11:29:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-18 11:29:24,757 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:29:24,758 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 11:29:24,758 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:29:24,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1240874338, now seen corresponding path program 1 times [2018-09-18 11:29:24,759 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:29:24,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:24,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:29:24,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:24,760 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:29:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:29:25,059 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:29:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:29:25,463 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:29:25,464 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:29:25,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:29:25,480 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:29:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:29:25,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:29:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-18 11:29:26,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:29:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:29:26,601 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:29:26,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-18 11:29:26,602 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:29:26,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:29:26,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:29:26,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:29:26,603 INFO L87 Difference]: Start difference. First operand 50659 states and 72612 transitions. Second operand 5 states. [2018-09-18 11:29:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:29:40,916 INFO L93 Difference]: Finished difference Result 130251 states and 199690 transitions. [2018-09-18 11:29:40,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:29:40,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2018-09-18 11:29:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:29:41,374 INFO L225 Difference]: With dead ends: 130251 [2018-09-18 11:29:41,374 INFO L226 Difference]: Without dead ends: 79598 [2018-09-18 11:29:41,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 506 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:29:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79598 states. [2018-09-18 11:29:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79598 to 79446. [2018-09-18 11:29:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79446 states. [2018-09-18 11:29:44,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79446 states to 79446 states and 115335 transitions. [2018-09-18 11:29:44,287 INFO L78 Accepts]: Start accepts. Automaton has 79446 states and 115335 transitions. Word has length 256 [2018-09-18 11:29:44,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:29:44,288 INFO L480 AbstractCegarLoop]: Abstraction has 79446 states and 115335 transitions. [2018-09-18 11:29:44,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:29:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 79446 states and 115335 transitions. [2018-09-18 11:29:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-09-18 11:29:44,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:29:44,311 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:29:44,311 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:29:44,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1276602628, now seen corresponding path program 1 times [2018-09-18 11:29:44,312 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:29:44,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:44,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:29:44,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:29:44,313 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:29:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:29:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-09-18 11:29:44,648 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:29:44,648 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:29:44,648 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:29:44,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:29:44,649 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:29:44,649 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:29:44,650 INFO L87 Difference]: Start difference. First operand 79446 states and 115335 transitions. Second operand 4 states. [2018-09-18 11:29:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:29:57,117 INFO L93 Difference]: Finished difference Result 259016 states and 405910 transitions. [2018-09-18 11:29:57,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:29:57,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2018-09-18 11:29:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:29:57,875 INFO L225 Difference]: With dead ends: 259016 [2018-09-18 11:29:57,876 INFO L226 Difference]: Without dead ends: 179576 [2018-09-18 11:29:58,092 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 [2018-09-18 11:29:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179576 states. [2018-09-18 11:30:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179576 to 176511. [2018-09-18 11:30:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176511 states. [2018-09-18 11:30:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176511 states to 176511 states and 254961 transitions. [2018-09-18 11:30:02,950 INFO L78 Accepts]: Start accepts. Automaton has 176511 states and 254961 transitions. Word has length 308 [2018-09-18 11:30:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:02,951 INFO L480 AbstractCegarLoop]: Abstraction has 176511 states and 254961 transitions. [2018-09-18 11:30:02,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:30:02,951 INFO L276 IsEmpty]: Start isEmpty. Operand 176511 states and 254961 transitions. [2018-09-18 11:30:02,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-09-18 11:30:02,992 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:02,992 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:30:02,992 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:02,994 INFO L82 PathProgramCache]: Analyzing trace with hash 788524673, now seen corresponding path program 1 times [2018-09-18 11:30:02,994 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:02,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:02,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:02,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:02,996 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:30:03,603 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:03,603 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:03,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:03,620 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:03,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:04,198 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-18 11:30:04,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:30:04,471 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:04,472 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:30:04,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:04,489 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:04,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:04,895 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-18 11:30:04,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:05,107 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 259 proven. 85 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-09-18 11:30:05,116 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:30:05,117 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:30:05,117 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:30:05,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:30:05,120 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:30:05,120 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:30:05,121 INFO L87 Difference]: Start difference. First operand 176511 states and 254961 transitions. Second operand 9 states. [2018-09-18 11:30:22,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:22,181 INFO L93 Difference]: Finished difference Result 387525 states and 632581 transitions. [2018-09-18 11:30:22,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 11:30:22,181 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 332 [2018-09-18 11:30:22,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:23,075 INFO L225 Difference]: With dead ends: 387525 [2018-09-18 11:30:23,075 INFO L226 Difference]: Without dead ends: 182857 [2018-09-18 11:30:23,509 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1324 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:30:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182857 states. [2018-09-18 11:30:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182857 to 171312. [2018-09-18 11:30:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171312 states. [2018-09-18 11:30:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171312 states to 171312 states and 245918 transitions. [2018-09-18 11:30:34,009 INFO L78 Accepts]: Start accepts. Automaton has 171312 states and 245918 transitions. Word has length 332 [2018-09-18 11:30:34,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:34,009 INFO L480 AbstractCegarLoop]: Abstraction has 171312 states and 245918 transitions. [2018-09-18 11:30:34,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:30:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 171312 states and 245918 transitions. [2018-09-18 11:30:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-09-18 11:30:34,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:34,035 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-09-18 11:30:34,035 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:34,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1002181406, now seen corresponding path program 1 times [2018-09-18 11:30:34,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:34,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:34,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:34,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:34,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:34,384 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:30:34,581 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:30:34,581 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:34,581 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:34,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:34,591 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:34,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-09-18 11:30:34,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:30:35,137 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:30:35,138 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 11:30:35,138 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:35,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:30:35,139 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:30:35,139 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:30:35,139 INFO L87 Difference]: Start difference. First operand 171312 states and 245918 transitions. Second operand 5 states. [2018-09-18 11:30:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:47,035 INFO L93 Difference]: Finished difference Result 378897 states and 572703 transitions. [2018-09-18 11:30:47,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:30:47,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 352 [2018-09-18 11:30:47,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:47,767 INFO L225 Difference]: With dead ends: 378897 [2018-09-18 11:30:47,768 INFO L226 Difference]: Without dead ends: 207591 [2018-09-18 11:30:48,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 698 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:30:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207591 states. [2018-09-18 11:30:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207591 to 206762. [2018-09-18 11:30:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206762 states. [2018-09-18 11:30:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206762 states to 206762 states and 276624 transitions. [2018-09-18 11:30:52,945 INFO L78 Accepts]: Start accepts. Automaton has 206762 states and 276624 transitions. Word has length 352 [2018-09-18 11:30:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:52,946 INFO L480 AbstractCegarLoop]: Abstraction has 206762 states and 276624 transitions. [2018-09-18 11:30:52,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:30:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 206762 states and 276624 transitions. [2018-09-18 11:30:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-09-18 11:30:52,974 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:52,975 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:30:52,975 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:52,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1902923929, now seen corresponding path program 1 times [2018-09-18 11:30:52,975 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:52,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:52,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:52,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:52,977 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-09-18 11:30:53,289 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:30:53,289 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:30:53,289 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:53,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:30:53,290 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:30:53,290 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:30:53,290 INFO L87 Difference]: Start difference. First operand 206762 states and 276624 transitions. Second operand 3 states. [2018-09-18 11:31:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:31:01,668 INFO L93 Difference]: Finished difference Result 419344 states and 561136 transitions. [2018-09-18 11:31:01,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:31:01,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2018-09-18 11:31:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:31:02,340 INFO L225 Difference]: With dead ends: 419344 [2018-09-18 11:31:02,341 INFO L226 Difference]: Without dead ends: 213356 [2018-09-18 11:31:02,749 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:31:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213356 states. [2018-09-18 11:31:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213356 to 201788. [2018-09-18 11:31:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201788 states. [2018-09-18 11:31:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201788 states to 201788 states and 258414 transitions. [2018-09-18 11:31:13,829 INFO L78 Accepts]: Start accepts. Automaton has 201788 states and 258414 transitions. Word has length 450 [2018-09-18 11:31:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:31:13,831 INFO L480 AbstractCegarLoop]: Abstraction has 201788 states and 258414 transitions. [2018-09-18 11:31:13,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:31:13,831 INFO L276 IsEmpty]: Start isEmpty. Operand 201788 states and 258414 transitions. [2018-09-18 11:31:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2018-09-18 11:31:13,914 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:31:13,914 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:31:13,915 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:31:13,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1385515826, now seen corresponding path program 1 times [2018-09-18 11:31:13,915 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:31:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:13,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:31:13,916 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:31:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 180 proven. 288 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-18 11:31:14,794 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:31:14,794 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:31:14,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:31:14,804 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:31:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:31:14,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:31:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-09-18 11:31:15,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:31:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 180 proven. 288 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-18 11:31:17,125 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:31:17,125 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-18 11:31:17,125 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:31:17,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:31:17,126 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:31:17,126 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:31:17,127 INFO L87 Difference]: Start difference. First operand 201788 states and 258414 transitions. Second operand 5 states. [2018-09-18 11:31:30,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:31:30,038 INFO L93 Difference]: Finished difference Result 412318 states and 530671 transitions. [2018-09-18 11:31:30,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 11:31:30,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 649 [2018-09-18 11:31:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:31:30,743 INFO L225 Difference]: With dead ends: 412318 [2018-09-18 11:31:30,743 INFO L226 Difference]: Without dead ends: 211304 [2018-09-18 11:31:31,064 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1309 GetRequests, 1294 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:31:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211304 states. Received shutdown request... [2018-09-18 11:31:33,006 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:31:33,012 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:31:33,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:31:33 BoogieIcfgContainer [2018-09-18 11:31:33,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:31:33,013 INFO L168 Benchmark]: Toolchain (without parser) took 220619.93 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,014 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:31:33,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2642.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 763.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 852.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,018 INFO L168 Benchmark]: Boogie Preprocessor took 386.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,018 INFO L168 Benchmark]: RCFGBuilder took 10381.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 644.7 MB). Peak memory consumption was 644.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,019 INFO L168 Benchmark]: TraceAbstraction took 206436.89 ms. Allocated memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: 3.4 GB). Free memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:31:33,025 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2642.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 763.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 852.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 386.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10381.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 644.7 MB). Peak memory consumption was 644.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206436.89 ms. Allocated memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: 3.4 GB). Free memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 206.3s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 155.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2939 SDtfs, 31064 SDslu, 1709 SDs, 0 SdLazy, 59174 SolverSat, 13774 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 111.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3936 GetRequests, 3841 SyntacticMatches, 18 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206762occurred in iteration=9, 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: 38.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 27492 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 4977 NumberOfCodeBlocks, 4977 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6877 ConstructedInterpolants, 0 QuantifiedInterpolants, 13232098 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3113 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 5015/6162 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/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-31-33-041.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label04_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-31-33-041.csv Completed graceful shutdown