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_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:25:48,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:25:48,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:25:48,663 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:25:48,663 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:25:48,664 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:25:48,665 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:25:48,667 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:25:48,669 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:25:48,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:25:48,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:25:48,671 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:25:48,672 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:25:48,673 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:25:48,674 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:25:48,676 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:25:48,677 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:25:48,679 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:25:48,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:25:48,687 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:25:48,688 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:25:48,689 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:25:48,692 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:25:48,692 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:25:48,692 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:25:48,693 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:25:48,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:25:48,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:25:48,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:25:48,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:25:48,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:25:48,698 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:25:48,698 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:25:48,699 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:25:48,700 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:25:48,700 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:25:48,701 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:25:48,716 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:25:48,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:25:48,717 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:25:48,717 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:25:48,717 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:25:48,718 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:25:48,718 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:25:48,718 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:25:48,718 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:25:48,718 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:25:48,719 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:25:48,719 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:25:48,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:25:48,720 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:25:48,720 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:25:48,720 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:25:48,720 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:25:48,721 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:25:48,721 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:25:48,721 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:25:48,721 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:25:48,721 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:25:48,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:25:48,722 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:25:48,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:25:48,722 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:25:48,722 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:25:48,722 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:25:48,723 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:25:48,723 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:25:48,723 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:25:48,723 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:25:48,723 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:25:48,724 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:25:48,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:25:48,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:25:48,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:25:48,812 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:25:48,812 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:25:48,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label47_true-unreach-call.c [2018-09-18 11:25:49,169 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbac95221/d9eef178842044fdb0958d0a912aec22/FLAG04811994e [2018-09-18 11:25:49,471 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:25:49,473 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label47_true-unreach-call.c [2018-09-18 11:25:49,492 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbac95221/d9eef178842044fdb0958d0a912aec22/FLAG04811994e [2018-09-18 11:25:49,513 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbac95221/d9eef178842044fdb0958d0a912aec22 [2018-09-18 11:25:49,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:25:49,532 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:25:49,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:25:49,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:25:49,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:25:49,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:25:49" (1/1) ... [2018-09-18 11:25:49,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aae051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:49, skipping insertion in model container [2018-09-18 11:25:49,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:25:49" (1/1) ... [2018-09-18 11:25:49,562 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:25:50,196 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:25:50,220 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:25:50,389 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:25:50,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50 WrapperNode [2018-09-18 11:25:50,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:25:50,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:25:50,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:25:50,469 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:25:50,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:25:50,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:25:50,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:25:50,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:25:50,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:50,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:51,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... [2018-09-18 11:25:51,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:25:51,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:25:51,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:25:51,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:25:51,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:25:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:25:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:25:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:25:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:25:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:25:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:25:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:25:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:25:56,154 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:25:56,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:25:56 BoogieIcfgContainer [2018-09-18 11:25:56,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:25:56,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:25:56,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:25:56,159 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:25:56,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:25:49" (1/3) ... [2018-09-18 11:25:56,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75831028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:25:56, skipping insertion in model container [2018-09-18 11:25:56,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:25:50" (2/3) ... [2018-09-18 11:25:56,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75831028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:25:56, skipping insertion in model container [2018-09-18 11:25:56,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:25:56" (3/3) ... [2018-09-18 11:25:56,163 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label47_true-unreach-call.c [2018-09-18 11:25:56,174 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:25:56,184 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:25:56,243 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:25:56,244 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:25:56,244 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:25:56,245 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:25:56,245 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:25:56,245 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:25:56,246 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:25:56,246 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:25:56,246 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:25:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-18 11:25:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-18 11:25:56,287 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:25:56,288 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] [2018-09-18 11:25:56,289 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:25:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1591725132, now seen corresponding path program 1 times [2018-09-18 11:25:56,298 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:25:56,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:25:56,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:25:56,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:25:56,359 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:25:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:25:56,846 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:25:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:25:56,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:25:56,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:25:56,951 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:25:56,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:25:56,974 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:25:56,974 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:25:56,977 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-09-18 11:25:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:25:59,116 INFO L93 Difference]: Finished difference Result 790 states and 1382 transitions. [2018-09-18 11:25:59,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:25:59,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-09-18 11:25:59,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:25:59,138 INFO L225 Difference]: With dead ends: 790 [2018-09-18 11:25:59,138 INFO L226 Difference]: Without dead ends: 495 [2018-09-18 11:25:59,147 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 [2018-09-18 11:25:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-18 11:25:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2018-09-18 11:25:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-09-18 11:25:59,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 849 transitions. [2018-09-18 11:25:59,236 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 849 transitions. Word has length 42 [2018-09-18 11:25:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:25:59,236 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 849 transitions. [2018-09-18 11:25:59,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:25:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 849 transitions. [2018-09-18 11:25:59,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-18 11:25:59,244 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:25:59,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:25:59,244 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:25:59,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1369215340, now seen corresponding path program 1 times [2018-09-18 11:25:59,245 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:25:59,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:25:59,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:25:59,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:25:59,247 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:25:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:25:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:25:59,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:25:59,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:25:59,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:25:59,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:25:59,541 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:25:59,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:25:59,542 INFO L87 Difference]: Start difference. First operand 488 states and 849 transitions. Second operand 5 states. [2018-09-18 11:26:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:04,259 INFO L93 Difference]: Finished difference Result 1731 states and 3162 transitions. [2018-09-18 11:26:04,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:26:04,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-09-18 11:26:04,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:04,273 INFO L225 Difference]: With dead ends: 1731 [2018-09-18 11:26:04,274 INFO L226 Difference]: Without dead ends: 1249 [2018-09-18 11:26:04,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:26:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-09-18 11:26:04,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1032. [2018-09-18 11:26:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-09-18 11:26:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1658 transitions. [2018-09-18 11:26:04,350 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1658 transitions. Word has length 118 [2018-09-18 11:26:04,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:04,351 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1658 transitions. [2018-09-18 11:26:04,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:26:04,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1658 transitions. [2018-09-18 11:26:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-18 11:26:04,355 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:04,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:26:04,356 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:04,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1411728153, now seen corresponding path program 1 times [2018-09-18 11:26:04,356 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:04,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:04,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:04,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:04,358 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:04,584 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:04,584 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:26:04,584 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:04,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:26:04,585 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:26:04,585 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:26:04,585 INFO L87 Difference]: Start difference. First operand 1032 states and 1658 transitions. Second operand 5 states. [2018-09-18 11:26:08,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:08,595 INFO L93 Difference]: Finished difference Result 3666 states and 6091 transitions. [2018-09-18 11:26:08,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:26:08,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-09-18 11:26:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:08,620 INFO L225 Difference]: With dead ends: 3666 [2018-09-18 11:26:08,620 INFO L226 Difference]: Without dead ends: 2640 [2018-09-18 11:26:08,628 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:26:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2018-09-18 11:26:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2605. [2018-09-18 11:26:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2018-09-18 11:26:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3731 transitions. [2018-09-18 11:26:08,717 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3731 transitions. Word has length 129 [2018-09-18 11:26:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:08,718 INFO L480 AbstractCegarLoop]: Abstraction has 2605 states and 3731 transitions. [2018-09-18 11:26:08,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:26:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3731 transitions. [2018-09-18 11:26:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-18 11:26:08,731 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:08,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:26:08,732 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:08,732 INFO L82 PathProgramCache]: Analyzing trace with hash 713476527, now seen corresponding path program 1 times [2018-09-18 11:26:08,733 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:08,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:08,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:08,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:08,734 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:09,146 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:09,147 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:26:09,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:09,158 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:09,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:09,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:09,867 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:26:09,867 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-18 11:26:09,867 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:09,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:26:09,868 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:26:09,869 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:26:09,869 INFO L87 Difference]: Start difference. First operand 2605 states and 3731 transitions. Second operand 3 states. [2018-09-18 11:26:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:13,003 INFO L93 Difference]: Finished difference Result 6000 states and 8839 transitions. [2018-09-18 11:26:13,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:26:13,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-09-18 11:26:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:13,025 INFO L225 Difference]: With dead ends: 6000 [2018-09-18 11:26:13,025 INFO L226 Difference]: Without dead ends: 3401 [2018-09-18 11:26:13,039 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:26:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2018-09-18 11:26:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3205. [2018-09-18 11:26:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3205 states. [2018-09-18 11:26:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 4562 transitions. [2018-09-18 11:26:13,202 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 4562 transitions. Word has length 174 [2018-09-18 11:26:13,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:13,203 INFO L480 AbstractCegarLoop]: Abstraction has 3205 states and 4562 transitions. [2018-09-18 11:26:13,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:26:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 4562 transitions. [2018-09-18 11:26:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-18 11:26:13,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:13,210 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:13,210 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:13,210 INFO L82 PathProgramCache]: Analyzing trace with hash -910630669, now seen corresponding path program 1 times [2018-09-18 11:26:13,210 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:13,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:13,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:13,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:13,212 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:13,534 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:26:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:26:13,970 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:13,970 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:26:13,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:13,990 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:14,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-18 11:26:14,516 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:26:15,010 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:26:15,011 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-18 11:26:15,011 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:15,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:26:15,012 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:26:15,013 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:26:15,013 INFO L87 Difference]: Start difference. First operand 3205 states and 4562 transitions. Second operand 5 states. [2018-09-18 11:26:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:19,061 INFO L93 Difference]: Finished difference Result 10429 states and 15187 transitions. [2018-09-18 11:26:19,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:26:19,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2018-09-18 11:26:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:19,097 INFO L225 Difference]: With dead ends: 10429 [2018-09-18 11:26:19,097 INFO L226 Difference]: Without dead ends: 7230 [2018-09-18 11:26:19,115 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:26:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2018-09-18 11:26:19,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7140. [2018-09-18 11:26:19,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7140 states. [2018-09-18 11:26:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9910 transitions. [2018-09-18 11:26:19,279 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9910 transitions. Word has length 199 [2018-09-18 11:26:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:19,280 INFO L480 AbstractCegarLoop]: Abstraction has 7140 states and 9910 transitions. [2018-09-18 11:26:19,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:26:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9910 transitions. [2018-09-18 11:26:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-18 11:26:19,289 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:19,289 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:19,290 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:19,290 INFO L82 PathProgramCache]: Analyzing trace with hash 943316104, now seen corresponding path program 1 times [2018-09-18 11:26:19,290 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:19,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:19,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:19,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:19,292 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:19,739 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:19,739 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 [2018-09-18 11:26:19,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:19,755 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:19,829 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:26:19,880 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:26:20,097 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:26:20,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-18 11:26:20,097 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:20,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:26:20,098 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:26:20,098 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:26:20,099 INFO L87 Difference]: Start difference. First operand 7140 states and 9910 transitions. Second operand 3 states. [2018-09-18 11:26:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:21,870 INFO L93 Difference]: Finished difference Result 18649 states and 26527 transitions. [2018-09-18 11:26:21,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:26:21,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2018-09-18 11:26:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:21,924 INFO L225 Difference]: With dead ends: 18649 [2018-09-18 11:26:21,925 INFO L226 Difference]: Without dead ends: 11515 [2018-09-18 11:26:21,960 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:26:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2018-09-18 11:26:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 11385. [2018-09-18 11:26:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11385 states. [2018-09-18 11:26:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11385 states to 11385 states and 15358 transitions. [2018-09-18 11:26:22,207 INFO L78 Accepts]: Start accepts. Automaton has 11385 states and 15358 transitions. Word has length 200 [2018-09-18 11:26:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:22,207 INFO L480 AbstractCegarLoop]: Abstraction has 11385 states and 15358 transitions. [2018-09-18 11:26:22,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:26:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11385 states and 15358 transitions. [2018-09-18 11:26:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-09-18 11:26:22,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:22,224 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:22,224 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1983343545, now seen corresponding path program 1 times [2018-09-18 11:26:22,224 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:22,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:22,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:22,226 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 11:26:22,441 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:22,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:26:22,441 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:22,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:26:22,442 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:26:22,442 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:26:22,443 INFO L87 Difference]: Start difference. First operand 11385 states and 15358 transitions. Second operand 3 states. [2018-09-18 11:26:24,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:24,013 INFO L93 Difference]: Finished difference Result 25297 states and 35254 transitions. [2018-09-18 11:26:24,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:26:24,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2018-09-18 11:26:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:24,074 INFO L225 Difference]: With dead ends: 25297 [2018-09-18 11:26:24,075 INFO L226 Difference]: Without dead ends: 13918 [2018-09-18 11:26:24,111 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:26:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13918 states. [2018-09-18 11:26:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13918 to 13495. [2018-09-18 11:26:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13495 states. [2018-09-18 11:26:24,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 18486 transitions. [2018-09-18 11:26:24,379 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 18486 transitions. Word has length 205 [2018-09-18 11:26:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:24,379 INFO L480 AbstractCegarLoop]: Abstraction has 13495 states and 18486 transitions. [2018-09-18 11:26:24,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:26:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 18486 transitions. [2018-09-18 11:26:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-18 11:26:24,402 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:24,403 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:24,403 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:24,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1780175367, now seen corresponding path program 1 times [2018-09-18 11:26:24,403 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:24,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:24,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:24,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:24,406 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:26:24,622 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:24,622 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:26:24,622 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:24,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:26:24,623 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:26:24,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:26:24,623 INFO L87 Difference]: Start difference. First operand 13495 states and 18486 transitions. Second operand 3 states. [2018-09-18 11:26:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:26,433 INFO L93 Difference]: Finished difference Result 28794 states and 40732 transitions. [2018-09-18 11:26:26,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:26:26,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2018-09-18 11:26:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:26,497 INFO L225 Difference]: With dead ends: 28794 [2018-09-18 11:26:26,498 INFO L226 Difference]: Without dead ends: 15305 [2018-09-18 11:26:26,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:26:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15305 states. [2018-09-18 11:26:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15305 to 15305. [2018-09-18 11:26:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15305 states. [2018-09-18 11:26:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15305 states to 15305 states and 20950 transitions. [2018-09-18 11:26:26,815 INFO L78 Accepts]: Start accepts. Automaton has 15305 states and 20950 transitions. Word has length 233 [2018-09-18 11:26:26,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:26,816 INFO L480 AbstractCegarLoop]: Abstraction has 15305 states and 20950 transitions. [2018-09-18 11:26:26,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:26:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 15305 states and 20950 transitions. [2018-09-18 11:26:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-18 11:26:26,839 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:26,840 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:26,840 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:26,840 INFO L82 PathProgramCache]: Analyzing trace with hash 331554026, now seen corresponding path program 1 times [2018-09-18 11:26:26,841 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:26,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:26,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:26,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:26,842 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:27,381 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:27,381 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:26:27,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:27,397 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:27,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:28,536 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-18 11:26:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:28,738 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:28,860 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2018-09-18 11:26:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:29,796 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:29,797 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 [2018-09-18 11:26:29,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:29,814 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:30,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 71 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:30,246 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:30,391 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:26:30,391 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 5] total 19 [2018-09-18 11:26:30,391 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:26:30,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:26:30,392 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:26:30,392 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:26:30,392 INFO L87 Difference]: Start difference. First operand 15305 states and 20950 transitions. Second operand 11 states. [2018-09-18 11:26:36,419 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2018-09-18 11:26:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:39,007 INFO L93 Difference]: Finished difference Result 34920 states and 51009 transitions. [2018-09-18 11:26:39,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-18 11:26:39,008 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2018-09-18 11:26:39,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:39,065 INFO L225 Difference]: With dead ends: 34920 [2018-09-18 11:26:39,065 INFO L226 Difference]: Without dead ends: 17878 [2018-09-18 11:26:39,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 957 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=597, Invalid=1953, Unknown=0, NotChecked=0, Total=2550 [2018-09-18 11:26:39,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17878 states. [2018-09-18 11:26:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17878 to 16999. [2018-09-18 11:26:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16999 states. [2018-09-18 11:26:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16999 states to 16999 states and 20630 transitions. [2018-09-18 11:26:39,449 INFO L78 Accepts]: Start accepts. Automaton has 16999 states and 20630 transitions. Word has length 240 [2018-09-18 11:26:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:39,450 INFO L480 AbstractCegarLoop]: Abstraction has 16999 states and 20630 transitions. [2018-09-18 11:26:39,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-18 11:26:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 16999 states and 20630 transitions. [2018-09-18 11:26:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-09-18 11:26:39,479 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:39,480 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:26:39,480 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -159378617, now seen corresponding path program 1 times [2018-09-18 11:26:39,481 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:39,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:39,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:39,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:39,482 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:26:40,092 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:40,092 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 [2018-09-18 11:26:40,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:40,100 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:40,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-18 11:26:40,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:40,502 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-18 11:26:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:26:40,755 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:26:40,756 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-18 11:26:40,756 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:40,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:26:40,757 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:26:40,757 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:26:40,758 INFO L87 Difference]: Start difference. First operand 16999 states and 20630 transitions. Second operand 5 states. [2018-09-18 11:26:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:43,418 INFO L93 Difference]: Finished difference Result 35699 states and 43325 transitions. [2018-09-18 11:26:43,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:26:43,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2018-09-18 11:26:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:43,462 INFO L225 Difference]: With dead ends: 35699 [2018-09-18 11:26:43,462 INFO L226 Difference]: Without dead ends: 18895 [2018-09-18 11:26:43,493 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 563 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:26:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2018-09-18 11:26:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 17722. [2018-09-18 11:26:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17722 states. [2018-09-18 11:26:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17722 states to 17722 states and 21496 transitions. [2018-09-18 11:26:43,776 INFO L78 Accepts]: Start accepts. Automaton has 17722 states and 21496 transitions. Word has length 283 [2018-09-18 11:26:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:43,777 INFO L480 AbstractCegarLoop]: Abstraction has 17722 states and 21496 transitions. [2018-09-18 11:26:43,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:26:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17722 states and 21496 transitions. [2018-09-18 11:26:43,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-09-18 11:26:43,805 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:43,805 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:43,806 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:43,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1844154338, now seen corresponding path program 1 times [2018-09-18 11:26:43,806 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:43,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:43,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:43,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:43,807 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:45,154 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:45,154 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 [2018-09-18 11:26:45,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:45,163 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:45,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:45,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:46,745 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:46,745 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 [2018-09-18 11:26:46,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:46,760 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:46,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:47,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:47,577 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:26:47,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8, 5, 5] total 27 [2018-09-18 11:26:47,578 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:26:47,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:26:47,579 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:26:47,580 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2018-09-18 11:26:47,580 INFO L87 Difference]: Start difference. First operand 17722 states and 21496 transitions. Second operand 17 states. [2018-09-18 11:26:48,351 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-09-18 11:26:50,569 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-18 11:26:51,900 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-09-18 11:26:52,101 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-09-18 11:26:53,060 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2018-09-18 11:26:55,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:55,676 INFO L93 Difference]: Finished difference Result 38808 states and 47466 transitions. [2018-09-18 11:26:55,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-18 11:26:55,677 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 326 [2018-09-18 11:26:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:55,719 INFO L225 Difference]: With dead ends: 38808 [2018-09-18 11:26:55,719 INFO L226 Difference]: Without dead ends: 21281 [2018-09-18 11:26:55,757 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1345 GetRequests, 1294 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2018-09-18 11:26:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21281 states. [2018-09-18 11:26:56,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21281 to 19837. [2018-09-18 11:26:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19837 states. [2018-09-18 11:26:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19837 states to 19837 states and 23315 transitions. [2018-09-18 11:26:56,065 INFO L78 Accepts]: Start accepts. Automaton has 19837 states and 23315 transitions. Word has length 326 [2018-09-18 11:26:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:56,066 INFO L480 AbstractCegarLoop]: Abstraction has 19837 states and 23315 transitions. [2018-09-18 11:26:56,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:26:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 19837 states and 23315 transitions. [2018-09-18 11:26:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-09-18 11:26:56,096 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:56,096 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:26:56,096 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:56,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1201170939, now seen corresponding path program 1 times [2018-09-18 11:26:56,097 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:56,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:56,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:56,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:56,098 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 5 proven. 72 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-09-18 11:26:56,703 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:56,703 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 [2018-09-18 11:26:56,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:56,715 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:56,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:58,092 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 [2018-09-18 11:26:58,911 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 [2018-09-18 11:27:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2018-09-18 11:27:00,052 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:00,311 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:00,311 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 [2018-09-18 11:27:00,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:00,331 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:00,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 5 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:01,000 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:01,284 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:27:01,284 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6, 9, 6] total 20 [2018-09-18 11:27:01,285 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:27:01,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:27:01,285 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:27:01,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=222, Unknown=2, NotChecked=66, Total=380 [2018-09-18 11:27:01,286 INFO L87 Difference]: Start difference. First operand 19837 states and 23315 transitions. Second operand 13 states. [2018-09-18 11:27:08,269 WARN L178 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-09-18 11:27:16,897 WARN L178 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2018-09-18 11:27:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:27:21,175 INFO L93 Difference]: Finished difference Result 57552 states and 73840 transitions. [2018-09-18 11:27:21,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-18 11:27:21,176 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 357 [2018-09-18 11:27:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:27:21,291 INFO L225 Difference]: With dead ends: 57552 [2018-09-18 11:27:21,291 INFO L226 Difference]: Without dead ends: 34800 [2018-09-18 11:27:21,375 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1457 GetRequests, 1413 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=8, NotChecked=138, Total=1406 [2018-09-18 11:27:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34800 states. [2018-09-18 11:27:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34800 to 33958. [2018-09-18 11:27:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33958 states. [2018-09-18 11:27:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33958 states to 33958 states and 39501 transitions. [2018-09-18 11:27:22,057 INFO L78 Accepts]: Start accepts. Automaton has 33958 states and 39501 transitions. Word has length 357 [2018-09-18 11:27:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:27:22,058 INFO L480 AbstractCegarLoop]: Abstraction has 33958 states and 39501 transitions. [2018-09-18 11:27:22,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:27:22,058 INFO L276 IsEmpty]: Start isEmpty. Operand 33958 states and 39501 transitions. [2018-09-18 11:27:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-09-18 11:27:22,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:27:22,094 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:27:22,094 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:27:22,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1421757562, now seen corresponding path program 1 times [2018-09-18 11:27:22,094 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:27:22,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:22,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:22,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:22,096 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:27:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:22,658 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 11:27:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 114 proven. 323 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:27:23,092 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:23,092 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 [2018-09-18 11:27:23,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:23,101 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:23,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 112 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:24,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:25,056 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-09-18 11:27:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:27:25,614 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:25,615 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 [2018-09-18 11:27:25,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:25,631 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:25,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:26,143 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 41 [2018-09-18 11:27:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 261 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:26,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:26,698 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-09-18 11:27:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 11:27:27,223 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:27:27,223 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 6, 9, 6] total 27 [2018-09-18 11:27:27,224 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:27:27,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:27:27,225 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:27:27,225 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2018-09-18 11:27:27,229 INFO L87 Difference]: Start difference. First operand 33958 states and 39501 transitions. Second operand 20 states. [2018-09-18 11:27:30,293 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-18 11:27:38,606 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2018-09-18 11:27:46,087 WARN L178 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-18 11:27:49,328 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 11:28:01,720 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:28:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:28:12,057 INFO L93 Difference]: Finished difference Result 71345 states and 87929 transitions. [2018-09-18 11:28:12,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2018-09-18 11:28:12,057 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 436 [2018-09-18 11:28:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:28:12,058 INFO L225 Difference]: With dead ends: 71345 [2018-09-18 11:28:12,058 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:28:12,224 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2145 GetRequests, 1904 SyntacticMatches, 5 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22998 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=5365, Invalid=51041, Unknown=0, NotChecked=0, Total=56406 [2018-09-18 11:28:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:28:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:28:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:28:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:28:12,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 436 [2018-09-18 11:28:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:28:12,226 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:28:12,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-18 11:28:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:28:12,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:28:12,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:28:12,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:12,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:12,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:12,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:12,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:12,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:13,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:14,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,864 WARN L178 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 688 DAG size of output: 457 [2018-09-18 11:28:15,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:15,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:16,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:17,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:28:18,265 WARN L178 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 688 DAG size of output: 457 [2018-09-18 11:28:20,977 WARN L178 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 386 DAG size of output: 88 [2018-09-18 11:28:21,122 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-18 11:29:22,551 WARN L178 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 450 DAG size of output: 99 Received shutdown request... [2018-09-18 11:29:52,586 WARN L186 SmtUtils]: Removed 68 from assertion stack [2018-09-18 11:29:52,587 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-18 11:29:52,588 INFO L168 Benchmark]: Toolchain (without parser) took 243059.74 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,589 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-18 11:29:52,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 934.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.51 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,591 INFO L168 Benchmark]: Boogie Preprocessor took 398.28 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -952.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,592 INFO L168 Benchmark]: RCFGBuilder took 5126.03 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 181.8 MB). Peak memory consumption was 181.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,593 INFO L168 Benchmark]: TraceAbstraction took 236431.65 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:29:52,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 934.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 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 161.51 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 398.28 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -952.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5126.03 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 181.8 MB). Peak memory consumption was 181.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236431.65 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 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: 111]: 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 450. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label47_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-29-52-610.csv Completed graceful shutdown