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/Problem11_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:16:03,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:16:03,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:16:03,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:16:03,474 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:16:03,475 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:16:03,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:16:03,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:16:03,480 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:16:03,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:16:03,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:16:03,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:16:03,483 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:16:03,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:16:03,485 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:16:03,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:16:03,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:16:03,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:16:03,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:16:03,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:16:03,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:16:03,498 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:16:03,503 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:16:03,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:16:03,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:16:03,506 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:16:03,507 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:16:03,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:16:03,508 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:16:03,512 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:16:03,512 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:16:03,513 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:16:03,513 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:16:03,513 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:16:03,514 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:16:03,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:16:03,517 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 17:16:03,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:16:03,539 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:16:03,540 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:16:03,540 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:16:03,540 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:16:03,541 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:16:03,541 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:16:03,541 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:16:03,541 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:16:03,541 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:16:03,542 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:16:03,542 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:16:03,542 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:16:03,543 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:16:03,544 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:16:03,544 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:16:03,544 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:16:03,544 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:16:03,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:16:03,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:16:03,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:16:03,545 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:16:03,545 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:16:03,545 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:16:03,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:16:03,546 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:16:03,546 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:16:03,546 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:16:03,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:16:03,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:16:03,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:16:03,611 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:16:03,612 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:16:03,612 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label52_true-unreach-call.c [2018-09-14 17:16:03,975 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ced9f3a/859547d38f0f400eba125ffe356ed35e/FLAGe7966863b [2018-09-14 17:16:04,311 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:16:04,314 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label52_true-unreach-call.c [2018-09-14 17:16:04,341 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ced9f3a/859547d38f0f400eba125ffe356ed35e/FLAGe7966863b [2018-09-14 17:16:04,363 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3ced9f3a/859547d38f0f400eba125ffe356ed35e [2018-09-14 17:16:04,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:16:04,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:16:04,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:16:04,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:16:04,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:16:04,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:16:04" (1/1) ... [2018-09-14 17:16:04,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:04, skipping insertion in model container [2018-09-14 17:16:04,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:16:04" (1/1) ... [2018-09-14 17:16:04,400 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:16:05,059 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:16:05,080 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:16:05,413 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:16:05,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05 WrapperNode [2018-09-14 17:16:05,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:16:05,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:16:05,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:16:05,494 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:16:05,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:16:05,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:16:05,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:16:05,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:16:05,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:05,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:06,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:06,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... [2018-09-14 17:16:06,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:16:06,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:16:06,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:16:06,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:16:06,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:16:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:16:06,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:16:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:16:06,127 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:16:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:16:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:16:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:16:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:16:10,788 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:16:10,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:16:10 BoogieIcfgContainer [2018-09-14 17:16:10,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:16:10,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:16:10,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:16:10,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:16:10,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:16:04" (1/3) ... [2018-09-14 17:16:10,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419cd6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:16:10, skipping insertion in model container [2018-09-14 17:16:10,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:16:05" (2/3) ... [2018-09-14 17:16:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419cd6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:16:10, skipping insertion in model container [2018-09-14 17:16:10,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:16:10" (3/3) ... [2018-09-14 17:16:10,798 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label52_true-unreach-call.c [2018-09-14 17:16:10,809 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:16:10,817 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:16:10,876 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:16:10,877 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:16:10,878 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:16:10,878 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:16:10,878 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:16:10,878 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:16:10,878 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:16:10,878 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:16:10,879 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:16:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-14 17:16:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-14 17:16:10,936 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:10,937 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] [2018-09-14 17:16:10,938 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:10,944 INFO L82 PathProgramCache]: Analyzing trace with hash -684847423, now seen corresponding path program 1 times [2018-09-14 17:16:10,947 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:10,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:10,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:10,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:10,996 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:11,527 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:16:11,576 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 17:16:11,579 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:11,579 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:16:11,579 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:11,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:11,602 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:11,602 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:11,605 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-09-14 17:16:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:13,709 INFO L93 Difference]: Finished difference Result 790 states and 1382 transitions. [2018-09-14 17:16:13,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:13,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-09-14 17:16:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:13,731 INFO L225 Difference]: With dead ends: 790 [2018-09-14 17:16:13,732 INFO L226 Difference]: Without dead ends: 495 [2018-09-14 17:16:13,741 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-14 17:16:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2018-09-14 17:16:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-09-14 17:16:13,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 849 transitions. [2018-09-14 17:16:13,826 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 849 transitions. Word has length 59 [2018-09-14 17:16:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:13,826 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 849 transitions. [2018-09-14 17:16:13,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 849 transitions. [2018-09-14 17:16:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-14 17:16:13,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:13,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:13,836 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:13,836 INFO L82 PathProgramCache]: Analyzing trace with hash 788418208, now seen corresponding path program 1 times [2018-09-14 17:16:13,836 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:13,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:13,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:13,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:13,838 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:14,114 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:14,115 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:16:14,115 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:14,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:14,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:14,118 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:16:14,119 INFO L87 Difference]: Start difference. First operand 488 states and 849 transitions. Second operand 5 states. [2018-09-14 17:16:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:19,804 INFO L93 Difference]: Finished difference Result 1731 states and 3162 transitions. [2018-09-14 17:16:19,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:16:19,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-09-14 17:16:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:19,814 INFO L225 Difference]: With dead ends: 1731 [2018-09-14 17:16:19,814 INFO L226 Difference]: Without dead ends: 1249 [2018-09-14 17:16:19,820 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-09-14 17:16:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1032. [2018-09-14 17:16:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-09-14 17:16:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1658 transitions. [2018-09-14 17:16:19,888 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1658 transitions. Word has length 135 [2018-09-14 17:16:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:19,888 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1658 transitions. [2018-09-14 17:16:19,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1658 transitions. [2018-09-14 17:16:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-14 17:16:19,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:19,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:19,900 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:19,901 INFO L82 PathProgramCache]: Analyzing trace with hash 167245263, now seen corresponding path program 1 times [2018-09-14 17:16:19,901 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:19,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:19,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:19,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:19,902 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:20,090 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:20,090 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:16:20,091 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:20,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:20,091 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:20,092 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:16:20,092 INFO L87 Difference]: Start difference. First operand 1032 states and 1658 transitions. Second operand 5 states. [2018-09-14 17:16:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:24,283 INFO L93 Difference]: Finished difference Result 3666 states and 6091 transitions. [2018-09-14 17:16:24,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:16:24,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2018-09-14 17:16:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:24,307 INFO L225 Difference]: With dead ends: 3666 [2018-09-14 17:16:24,307 INFO L226 Difference]: Without dead ends: 2640 [2018-09-14 17:16:24,314 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:24,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2018-09-14 17:16:24,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2605. [2018-09-14 17:16:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2018-09-14 17:16:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3731 transitions. [2018-09-14 17:16:24,413 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3731 transitions. Word has length 146 [2018-09-14 17:16:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:24,414 INFO L480 AbstractCegarLoop]: Abstraction has 2605 states and 3731 transitions. [2018-09-14 17:16:24,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3731 transitions. [2018-09-14 17:16:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-09-14 17:16:24,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:24,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:24,424 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:24,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2059396069, now seen corresponding path program 1 times [2018-09-14 17:16:24,424 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:24,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:24,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:24,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:24,426 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:24,912 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:24,912 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 [2018-09-14 17:16:24,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:24,921 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:25,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:25,234 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:25,728 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:16:25,728 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-14 17:16:25,729 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:25,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:25,730 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:25,730 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:16:25,731 INFO L87 Difference]: Start difference. First operand 2605 states and 3731 transitions. Second operand 3 states. [2018-09-14 17:16:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:29,403 INFO L93 Difference]: Finished difference Result 6000 states and 8839 transitions. [2018-09-14 17:16:29,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:29,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-09-14 17:16:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:29,427 INFO L225 Difference]: With dead ends: 6000 [2018-09-14 17:16:29,428 INFO L226 Difference]: Without dead ends: 3401 [2018-09-14 17:16:29,441 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 382 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:16:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2018-09-14 17:16:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3205. [2018-09-14 17:16:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3205 states. [2018-09-14 17:16:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 4562 transitions. [2018-09-14 17:16:29,602 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 4562 transitions. Word has length 191 [2018-09-14 17:16:29,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:29,603 INFO L480 AbstractCegarLoop]: Abstraction has 3205 states and 4562 transitions. [2018-09-14 17:16:29,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 4562 transitions. [2018-09-14 17:16:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-14 17:16:29,609 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:29,609 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, 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] [2018-09-14 17:16:29,609 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:29,610 INFO L82 PathProgramCache]: Analyzing trace with hash -558733758, now seen corresponding path program 1 times [2018-09-14 17:16:29,610 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:29,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:29,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:29,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:29,611 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:29,899 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:16:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:30,310 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:30,310 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 [2018-09-14 17:16:30,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:30,329 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:30,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 17:16:30,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:31,224 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:16:31,224 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:16:31,224 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:31,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:31,225 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:31,226 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:16:31,226 INFO L87 Difference]: Start difference. First operand 3205 states and 4562 transitions. Second operand 5 states. [2018-09-14 17:16:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:35,128 INFO L93 Difference]: Finished difference Result 10429 states and 15187 transitions. [2018-09-14 17:16:35,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:16:35,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-09-14 17:16:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:35,170 INFO L225 Difference]: With dead ends: 10429 [2018-09-14 17:16:35,170 INFO L226 Difference]: Without dead ends: 7230 [2018-09-14 17:16:35,188 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:16:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2018-09-14 17:16:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7140. [2018-09-14 17:16:35,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7140 states. [2018-09-14 17:16:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9910 transitions. [2018-09-14 17:16:35,377 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9910 transitions. Word has length 216 [2018-09-14 17:16:35,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:35,378 INFO L480 AbstractCegarLoop]: Abstraction has 7140 states and 9910 transitions. [2018-09-14 17:16:35,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9910 transitions. [2018-09-14 17:16:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-14 17:16:35,393 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:35,393 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, 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] [2018-09-14 17:16:35,393 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1790586155, now seen corresponding path program 1 times [2018-09-14 17:16:35,394 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:35,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:35,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:35,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:35,395 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:35,915 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:35,915 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:35,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:35,931 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:36,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:16:36,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:16:36,492 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:16:36,492 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-14 17:16:36,493 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:36,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:36,494 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:36,494 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:36,494 INFO L87 Difference]: Start difference. First operand 7140 states and 9910 transitions. Second operand 3 states. [2018-09-14 17:16:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:38,061 INFO L93 Difference]: Finished difference Result 18649 states and 26527 transitions. [2018-09-14 17:16:38,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:38,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2018-09-14 17:16:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:38,115 INFO L225 Difference]: With dead ends: 18649 [2018-09-14 17:16:38,115 INFO L226 Difference]: Without dead ends: 11515 [2018-09-14 17:16:38,156 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2018-09-14 17:16:38,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 11385. [2018-09-14 17:16:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11385 states. [2018-09-14 17:16:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11385 states to 11385 states and 15358 transitions. [2018-09-14 17:16:38,409 INFO L78 Accepts]: Start accepts. Automaton has 11385 states and 15358 transitions. Word has length 217 [2018-09-14 17:16:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:38,410 INFO L480 AbstractCegarLoop]: Abstraction has 11385 states and 15358 transitions. [2018-09-14 17:16:38,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 11385 states and 15358 transitions. [2018-09-14 17:16:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-14 17:16:38,430 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:38,430 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, 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] [2018-09-14 17:16:38,430 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:38,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1163374894, now seen corresponding path program 1 times [2018-09-14 17:16:38,431 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:38,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:38,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:38,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:38,432 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 17:16:38,658 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:38,658 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:16:38,658 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:38,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:38,659 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:38,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:38,659 INFO L87 Difference]: Start difference. First operand 11385 states and 15358 transitions. Second operand 3 states. [2018-09-14 17:16:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:40,452 INFO L93 Difference]: Finished difference Result 23995 states and 33257 transitions. [2018-09-14 17:16:40,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:40,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2018-09-14 17:16:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:40,496 INFO L225 Difference]: With dead ends: 23995 [2018-09-14 17:16:40,496 INFO L226 Difference]: Without dead ends: 12616 [2018-09-14 17:16:40,532 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 [2018-09-14 17:16:40,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12616 states. [2018-09-14 17:16:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12616 to 12614. [2018-09-14 17:16:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12614 states. [2018-09-14 17:16:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12614 states to 12614 states and 16994 transitions. [2018-09-14 17:16:40,791 INFO L78 Accepts]: Start accepts. Automaton has 12614 states and 16994 transitions. Word has length 222 [2018-09-14 17:16:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:40,791 INFO L480 AbstractCegarLoop]: Abstraction has 12614 states and 16994 transitions. [2018-09-14 17:16:40,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12614 states and 16994 transitions. [2018-09-14 17:16:40,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-09-14 17:16:40,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:40,829 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, 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] [2018-09-14 17:16:40,829 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:40,830 INFO L82 PathProgramCache]: Analyzing trace with hash 985491209, now seen corresponding path program 1 times [2018-09-14 17:16:40,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:40,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:40,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:40,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:40,831 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:41,254 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:41,254 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 [2018-09-14 17:16:41,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:41,261 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:41,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:41,805 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-14 17:16:42,317 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-14 17:16:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:42,660 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:42,988 WARN L178 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2018-09-14 17:16:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:43,589 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:43,589 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:16:43,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:43,607 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:43,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 105 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:44,049 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:44,416 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:16:44,416 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 5] total 19 [2018-09-14 17:16:44,416 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:16:44,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-14 17:16:44,417 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-14 17:16:44,418 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-09-14 17:16:44,418 INFO L87 Difference]: Start difference. First operand 12614 states and 16994 transitions. Second operand 11 states. [2018-09-14 17:16:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:53,476 INFO L93 Difference]: Finished difference Result 28851 states and 40784 transitions. [2018-09-14 17:16:53,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-14 17:16:53,477 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 257 [2018-09-14 17:16:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:53,528 INFO L225 Difference]: With dead ends: 28851 [2018-09-14 17:16:53,528 INFO L226 Difference]: Without dead ends: 14684 [2018-09-14 17:16:53,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1025 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=597, Invalid=1953, Unknown=0, NotChecked=0, Total=2550 [2018-09-14 17:16:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14684 states. [2018-09-14 17:16:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14684 to 13720. [2018-09-14 17:16:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13720 states. [2018-09-14 17:16:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13720 states to 13720 states and 16456 transitions. [2018-09-14 17:16:53,858 INFO L78 Accepts]: Start accepts. Automaton has 13720 states and 16456 transitions. Word has length 257 [2018-09-14 17:16:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:53,859 INFO L480 AbstractCegarLoop]: Abstraction has 13720 states and 16456 transitions. [2018-09-14 17:16:53,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-14 17:16:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13720 states and 16456 transitions. [2018-09-14 17:16:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-14 17:16:53,896 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:53,896 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, 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] [2018-09-14 17:16:53,897 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1202515472, now seen corresponding path program 1 times [2018-09-14 17:16:53,897 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:53,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:53,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:53,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:53,899 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:54,524 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-14 17:16:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:54,811 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:54,812 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:54,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:54,820 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:54,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 17:16:55,092 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:55,316 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-14 17:16:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:55,578 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:16:55,578 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-14 17:16:55,578 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:55,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:55,579 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:55,579 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:16:55,579 INFO L87 Difference]: Start difference. First operand 13720 states and 16456 transitions. Second operand 5 states. [2018-09-14 17:16:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:58,312 INFO L93 Difference]: Finished difference Result 29033 states and 34806 transitions. [2018-09-14 17:16:58,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:16:58,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2018-09-14 17:16:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:58,353 INFO L225 Difference]: With dead ends: 29033 [2018-09-14 17:16:58,353 INFO L226 Difference]: Without dead ends: 15508 [2018-09-14 17:16:58,378 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 597 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:16:58,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15508 states. [2018-09-14 17:16:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15508 to 14451. [2018-09-14 17:16:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14451 states. [2018-09-14 17:16:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14451 states to 14451 states and 17304 transitions. [2018-09-14 17:16:58,615 INFO L78 Accepts]: Start accepts. Automaton has 14451 states and 17304 transitions. Word has length 300 [2018-09-14 17:16:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:58,616 INFO L480 AbstractCegarLoop]: Abstraction has 14451 states and 17304 transitions. [2018-09-14 17:16:58,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14451 states and 17304 transitions. [2018-09-14 17:16:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-14 17:16:58,650 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:58,651 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:58,651 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:58,651 INFO L82 PathProgramCache]: Analyzing trace with hash 997672691, now seen corresponding path program 1 times [2018-09-14 17:16:58,652 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:58,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:58,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:58,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:58,653 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:59,288 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-14 17:16:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:59,953 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:59,953 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:59,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:59,961 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:00,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:00,328 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-09-14 17:17:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:01,249 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:02,057 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:02,057 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 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:17:02,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:02,076 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:02,319 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:02,457 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:02,837 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:17:02,838 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8, 5, 5] total 27 [2018-09-14 17:17:02,838 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:17:02,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-14 17:17:02,839 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-14 17:17:02,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2018-09-14 17:17:02,840 INFO L87 Difference]: Start difference. First operand 14451 states and 17304 transitions. Second operand 17 states. [2018-09-14 17:17:02,989 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-09-14 17:17:05,200 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 37 [2018-09-14 17:17:05,436 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-14 17:17:05,604 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2018-09-14 17:17:08,881 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2018-09-14 17:17:10,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:17:10,818 INFO L93 Difference]: Finished difference Result 31435 states and 37941 transitions. [2018-09-14 17:17:10,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 17:17:10,818 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 343 [2018-09-14 17:17:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:17:10,857 INFO L225 Difference]: With dead ends: 31435 [2018-09-14 17:17:10,857 INFO L226 Difference]: Without dead ends: 17179 [2018-09-14 17:17:10,888 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1362 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2018-09-14 17:17:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17179 states. [2018-09-14 17:17:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17179 to 16099. [2018-09-14 17:17:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16099 states. [2018-09-14 17:17:11,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16099 states to 16099 states and 18721 transitions. [2018-09-14 17:17:11,142 INFO L78 Accepts]: Start accepts. Automaton has 16099 states and 18721 transitions. Word has length 343 [2018-09-14 17:17:11,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:17:11,143 INFO L480 AbstractCegarLoop]: Abstraction has 16099 states and 18721 transitions. [2018-09-14 17:17:11,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-14 17:17:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16099 states and 18721 transitions. [2018-09-14 17:17:11,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-09-14 17:17:11,188 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:17:11,188 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:17:11,188 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:17:11,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1470194130, now seen corresponding path program 1 times [2018-09-14 17:17:11,189 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:17:11,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:11,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:11,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:11,190 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:17:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 5 proven. 106 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-09-14 17:17:12,225 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:12,225 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:17:12,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:12,232 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:12,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:14,395 WARN L1001 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 Int)) (let ((.cse1 (+ v_prenex_2 69157))) (let ((.cse0 (mod .cse1 299861))) (and (<= c_~a29~0 (+ .cse0 277)) (< .cse1 0) (<= |c_old(~a29~0)| v_prenex_2) (not (= .cse0 0)))))) (exists ((v_~a29~0_618 Int)) (let ((.cse2 (mod (+ v_~a29~0_618 69157) 299861))) (and (<= c_~a29~0 (+ .cse2 300138)) (= .cse2 0) (<= |c_old(~a29~0)| v_~a29~0_618)))) (exists ((v_prenex_1 Int)) (let ((.cse3 (+ v_prenex_1 69157))) (and (<= 0 .cse3) (<= |c_old(~a29~0)| v_prenex_1) (<= c_~a29~0 (+ (mod .cse3 299861) 300138)))))) is different from true [2018-09-14 17:17:15,238 WARN L1001 $PredicateComparison]: unable to prove that (or (exists ((v_~a29~0_618 Int)) (let ((.cse0 (mod (+ v_~a29~0_618 69157) 299861))) (and (<= c_~a29~0 (+ .cse0 300138)) (= .cse0 0) (<= 130 v_~a29~0_618)))) (exists ((v_prenex_1 Int)) (let ((.cse1 (+ v_prenex_1 69157))) (and (<= 0 .cse1) (<= c_~a29~0 (+ (mod .cse1 299861) 300138)) (<= 130 v_prenex_1)))) (exists ((v_prenex_2 Int)) (let ((.cse3 (+ v_prenex_2 69157))) (let ((.cse2 (mod .cse3 299861))) (and (<= c_~a29~0 (+ .cse2 277)) (< .cse3 0) (<= 130 v_prenex_2) (not (= .cse2 0))))))) is different from true [2018-09-14 17:17:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2018-09-14 17:17:16,490 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:16,960 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:16,960 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:17:16,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:16,976 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:17,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 5 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:17,697 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 250 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:17,907 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:17:17,908 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6, 9, 6] total 20 [2018-09-14 17:17:17,908 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:17:17,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 17:17:17,909 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 17:17:17,909 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=222, Unknown=2, NotChecked=66, Total=380 [2018-09-14 17:17:17,909 INFO L87 Difference]: Start difference. First operand 16099 states and 18721 transitions. Second operand 13 states. [2018-09-14 17:17:24,727 WARN L178 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-09-14 17:17:34,283 WARN L178 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2018-09-14 17:17:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:17:39,137 INFO L93 Difference]: Finished difference Result 50403 states and 64414 transitions. [2018-09-14 17:17:39,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-14 17:17:39,137 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 374 [2018-09-14 17:17:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:17:39,266 INFO L225 Difference]: With dead ends: 50403 [2018-09-14 17:17:39,266 INFO L226 Difference]: Without dead ends: 33680 [2018-09-14 17:17:39,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1525 GetRequests, 1481 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=8, NotChecked=138, Total=1406 [2018-09-14 17:17:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33680 states. [2018-09-14 17:17:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33680 to 33106. [2018-09-14 17:17:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33106 states. [2018-09-14 17:17:40,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33106 states to 33106 states and 39473 transitions. [2018-09-14 17:17:40,191 INFO L78 Accepts]: Start accepts. Automaton has 33106 states and 39473 transitions. Word has length 374 [2018-09-14 17:17:40,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:17:40,192 INFO L480 AbstractCegarLoop]: Abstraction has 33106 states and 39473 transitions. [2018-09-14 17:17:40,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-14 17:17:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand 33106 states and 39473 transitions. [2018-09-14 17:17:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-09-14 17:17:40,243 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:17:40,243 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:40,243 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:17:40,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1221459068, now seen corresponding path program 1 times [2018-09-14 17:17:40,244 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:17:40,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:40,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:40,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:40,245 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:17:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 275 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:41,898 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:41,898 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:17:41,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:41,913 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:42,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 341 proven. 109 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 17:17:43,297 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:43,585 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-09-14 17:17:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 162 proven. 336 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:17:45,015 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:45,015 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 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:17:45,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:45,037 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:45,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 341 proven. 109 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-14 17:17:45,764 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:45,942 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-14 17:17:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 269 proven. 109 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 17:17:46,879 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:17:46,880 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 8, 8, 5] total 39 [2018-09-14 17:17:46,880 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:17:46,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-09-14 17:17:46,881 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-09-14 17:17:46,882 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1343, Unknown=0, NotChecked=0, Total=1482 [2018-09-14 17:17:46,882 INFO L87 Difference]: Start difference. First operand 33106 states and 39473 transitions. Second operand 26 states. [2018-09-14 17:17:48,513 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2018-09-14 17:17:52,003 WARN L178 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2018-09-14 17:17:52,681 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-09-14 17:17:58,794 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-09-14 17:18:00,008 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-09-14 17:18:00,898 WARN L178 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2018-09-14 17:18:01,484 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-09-14 17:18:01,792 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2018-09-14 17:18:03,442 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-09-14 17:18:04,042 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2018-09-14 17:18:08,867 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-09-14 17:18:09,147 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2018-09-14 17:18:11,373 WARN L178 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-09-14 17:18:13,534 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2018-09-14 17:18:14,454 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-09-14 17:18:15,036 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-09-14 17:18:16,756 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2018-09-14 17:18:17,486 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-09-14 17:18:19,329 WARN L178 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-09-14 17:18:19,556 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-09-14 17:18:20,464 WARN L178 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2018-09-14 17:18:21,171 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2018-09-14 17:18:23,687 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-09-14 17:18:24,681 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2018-09-14 17:18:25,796 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-09-14 17:18:26,939 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2018-09-14 17:18:32,505 WARN L178 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-09-14 17:18:35,361 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-09-14 17:18:36,313 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2018-09-14 17:18:39,180 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2018-09-14 17:18:39,876 WARN L178 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-09-14 17:18:41,931 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-09-14 17:18:42,907 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2018-09-14 17:18:46,816 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-09-14 17:18:58,392 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-09-14 17:18:59,025 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-09-14 17:18:59,254 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-09-14 17:19:10,986 WARN L178 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2018-09-14 17:19:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:19:22,440 INFO L93 Difference]: Finished difference Result 84241 states and 108057 transitions. [2018-09-14 17:19:22,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2018-09-14 17:19:22,440 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 463 [2018-09-14 17:19:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:19:22,441 INFO L225 Difference]: With dead ends: 84241 [2018-09-14 17:19:22,441 INFO L226 Difference]: Without dead ends: 0 [2018-09-14 17:19:22,635 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2095 GetRequests, 1860 SyntacticMatches, 7 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20281 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=7443, Invalid=45227, Unknown=0, NotChecked=0, Total=52670 [2018-09-14 17:19:22,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-14 17:19:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-14 17:19:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-14 17:19:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-14 17:19:22,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 463 [2018-09-14 17:19:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:19:22,638 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-14 17:19:22,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-09-14 17:19:22,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-14 17:19:22,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-14 17:19:22,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-14 17:19:23,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:23,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:24,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:25,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:26,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,285 WARN L178 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 681 DAG size of output: 461 [2018-09-14 17:19:27,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,936 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:27,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:28,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:19:29,920 WARN L178 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 681 DAG size of output: 461 [2018-09-14 17:19:32,613 WARN L178 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2018-09-14 17:19:53,429 WARN L178 SmtUtils]: Spent 20.79 s on a formula simplification. DAG size of input: 459 DAG size of output: 84 Received shutdown request... [2018-09-14 17:20:01,562 WARN L186 SmtUtils]: Removed 16 from assertion stack [2018-09-14 17:20:01,563 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-14 17:20:01,564 INFO L168 Benchmark]: Toolchain (without parser) took 237188.69 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,565 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:20:01,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1114.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,567 INFO L168 Benchmark]: Boogie Preprocessor took 400.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -920.0 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,568 INFO L168 Benchmark]: RCFGBuilder took 4743.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 170.8 MB). Peak memory consumption was 170.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,569 INFO L168 Benchmark]: TraceAbstraction took 230773.50 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-14 17:20:01,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1114.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 400.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -920.0 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4743.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 170.8 MB). Peak memory consumption was 170.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230773.50 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 162]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 459. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-20-01-588.csv Completed graceful shutdown