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/Problem18_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:25:53,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:25:53,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:25:53,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:25:53,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:25:53,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:25:53,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:25:53,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:25:53,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:25:53,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:25:53,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:25:53,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:25:53,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:25:53,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:25:53,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:25:53,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:25:53,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:25:53,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:25:53,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:25:53,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:25:53,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:25:53,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:25:53,796 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:25:53,797 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:25:53,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:25:53,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:25:53,799 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:25:53,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:25:53,800 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:25:53,802 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:25:53,802 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:25:53,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:25:53,803 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:25:53,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:25:53,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:25:53,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:25:53,805 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 12:25:53,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:25:53,821 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:25:53,822 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:25:53,822 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:25:53,822 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:25:53,822 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:25:53,823 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:25:53,823 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:25:53,823 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:25:53,823 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:25:53,823 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:25:53,825 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:25:53,826 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:25:53,826 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:25:53,827 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:25:53,827 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:25:53,828 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:25:53,828 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:25:53,828 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:25:53,828 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:25:53,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:25:53,829 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:25:53,829 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:25:53,829 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:25:53,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:25:53,831 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:25:53,831 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:25:53,831 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:25:53,831 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:25:53,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:25:53,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:25:53,832 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:25:53,833 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:25:53,833 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:25:53,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:25:53,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:25:53,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:25:53,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:25:53,910 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:25:53,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label50_true-unreach-call.c [2018-09-18 12:25:54,303 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca40d3a3e/9e2d62b2634c4fadbe6f994865fdfeeb/FLAG2d2eff7bc [2018-09-18 12:25:54,726 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:25:54,727 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label50_true-unreach-call.c [2018-09-18 12:25:54,755 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca40d3a3e/9e2d62b2634c4fadbe6f994865fdfeeb/FLAG2d2eff7bc [2018-09-18 12:25:54,771 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca40d3a3e/9e2d62b2634c4fadbe6f994865fdfeeb [2018-09-18 12:25:54,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:25:54,784 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:25:54,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:25:54,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:25:54,794 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:25:54,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:25:54" (1/1) ... [2018-09-18 12:25:54,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314fec16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:54, skipping insertion in model container [2018-09-18 12:25:54,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:25:54" (1/1) ... [2018-09-18 12:25:54,812 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:25:55,845 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:25:55,868 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:25:56,422 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:25:56,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56 WrapperNode [2018-09-18 12:25:56,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:25:56,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:25:56,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:25:56,585 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:25:56,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:56,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:56,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:25:56,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:25:56,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:25:56,791 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:25:57,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (1/1) ... [2018-09-18 12:25:57,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:25:57,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:25:57,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:25:57,408 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:25:57,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (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 12:25:57,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:25:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:25:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:25:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:25:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:25:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:25:57,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:25:57,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:25:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:25:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:25:57,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:25:57,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:26:05,826 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:26:05,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:26:05 BoogieIcfgContainer [2018-09-18 12:26:05,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:26:05,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:26:05,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:26:05,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:26:05,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:25:54" (1/3) ... [2018-09-18 12:26:05,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a3d47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:26:05, skipping insertion in model container [2018-09-18 12:26:05,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:25:56" (2/3) ... [2018-09-18 12:26:05,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a3d47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:26:05, skipping insertion in model container [2018-09-18 12:26:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:26:05" (3/3) ... [2018-09-18 12:26:05,835 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label50_true-unreach-call.c [2018-09-18 12:26:05,844 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:26:05,853 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:26:05,919 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:26:05,920 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:26:05,920 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:26:05,920 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:26:05,920 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:26:05,921 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:26:05,921 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:26:05,921 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:26:05,921 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:26:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-18 12:26:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-18 12:26:05,977 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:05,979 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:26:05,980 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:05,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1313897628, now seen corresponding path program 1 times [2018-09-18 12:26:05,986 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:06,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:06,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:06,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:06,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:06,557 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:26:06,700 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 12:26:06,702 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:26:06,703 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:26:06,703 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:06,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:26:06,725 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:26:06,726 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:26:06,728 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-09-18 12:26:13,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:13,572 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-09-18 12:26:13,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:26:13,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-09-18 12:26:13,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:13,607 INFO L225 Difference]: With dead ends: 2251 [2018-09-18 12:26:13,607 INFO L226 Difference]: Without dead ends: 1474 [2018-09-18 12:26:13,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:26:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-09-18 12:26:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-09-18 12:26:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-18 12:26:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-09-18 12:26:13,772 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 70 [2018-09-18 12:26:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:13,773 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-09-18 12:26:13,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:26:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-09-18 12:26:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-09-18 12:26:13,789 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:13,790 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:26:13,792 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:13,792 INFO L82 PathProgramCache]: Analyzing trace with hash -574735317, now seen corresponding path program 1 times [2018-09-18 12:26:13,793 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:13,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:13,794 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:26:14,178 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:26:14,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:26:14,179 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:14,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:26:14,181 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:26:14,182 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:26:14,182 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-09-18 12:26:23,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:23,133 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-09-18 12:26:23,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:26:23,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2018-09-18 12:26:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:23,158 INFO L225 Difference]: With dead ends: 4419 [2018-09-18 12:26:23,158 INFO L226 Difference]: Without dead ends: 2951 [2018-09-18 12:26:23,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:26:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-09-18 12:26:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-09-18 12:26:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-09-18 12:26:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-09-18 12:26:23,284 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 159 [2018-09-18 12:26:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:23,284 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-09-18 12:26:23,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:26:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-09-18 12:26:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-09-18 12:26:23,295 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:23,295 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:26:23,296 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:23,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1205378606, now seen corresponding path program 1 times [2018-09-18 12:26:23,296 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:23,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:23,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:23,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:23,302 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:26:23,730 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:26:23,730 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:26:23,730 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:23,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:26:23,731 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:26:23,732 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:26:23,732 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-09-18 12:26:29,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:29,462 INFO L93 Difference]: Finished difference Result 6669 states and 11522 transitions. [2018-09-18 12:26:29,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:26:29,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2018-09-18 12:26:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:29,485 INFO L225 Difference]: With dead ends: 6669 [2018-09-18 12:26:29,485 INFO L226 Difference]: Without dead ends: 3747 [2018-09-18 12:26:29,494 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:26:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2018-09-18 12:26:29,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3689. [2018-09-18 12:26:29,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3689 states. [2018-09-18 12:26:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5891 transitions. [2018-09-18 12:26:29,592 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5891 transitions. Word has length 206 [2018-09-18 12:26:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:29,593 INFO L480 AbstractCegarLoop]: Abstraction has 3689 states and 5891 transitions. [2018-09-18 12:26:29,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:26:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5891 transitions. [2018-09-18 12:26:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-18 12:26:29,597 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:29,598 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:26:29,598 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:29,598 INFO L82 PathProgramCache]: Analyzing trace with hash 393503562, now seen corresponding path program 1 times [2018-09-18 12:26:29,598 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:29,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:29,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:29,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:29,600 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:29,902 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:26:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:26:30,126 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:26:30,127 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:26:30,127 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:30,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:26:30,128 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:26:30,128 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:26:30,128 INFO L87 Difference]: Start difference. First operand 3689 states and 5891 transitions. Second operand 6 states. [2018-09-18 12:26:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:35,952 INFO L93 Difference]: Finished difference Result 9623 states and 15373 transitions. [2018-09-18 12:26:35,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:26:35,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-09-18 12:26:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:35,981 INFO L225 Difference]: With dead ends: 9623 [2018-09-18 12:26:35,981 INFO L226 Difference]: Without dead ends: 5940 [2018-09-18 12:26:35,992 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:26:35,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2018-09-18 12:26:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5889. [2018-09-18 12:26:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5889 states. [2018-09-18 12:26:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 8064 transitions. [2018-09-18 12:26:36,140 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 8064 transitions. Word has length 208 [2018-09-18 12:26:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:36,140 INFO L480 AbstractCegarLoop]: Abstraction has 5889 states and 8064 transitions. [2018-09-18 12:26:36,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:26:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 8064 transitions. [2018-09-18 12:26:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-09-18 12:26:36,147 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:36,148 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:26:36,148 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:36,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1692616840, now seen corresponding path program 1 times [2018-09-18 12:26:36,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:36,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:36,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:36,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:36,150 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:36,434 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-18 12:26:36,434 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:26:36,435 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:26:36,435 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:36,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:26:36,436 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:26:36,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:26:36,437 INFO L87 Difference]: Start difference. First operand 5889 states and 8064 transitions. Second operand 4 states. [2018-09-18 12:26:44,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:44,434 INFO L93 Difference]: Finished difference Result 22501 states and 31632 transitions. [2018-09-18 12:26:44,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:26:44,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 266 [2018-09-18 12:26:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:44,514 INFO L225 Difference]: With dead ends: 22501 [2018-09-18 12:26:44,515 INFO L226 Difference]: Without dead ends: 16618 [2018-09-18 12:26:44,547 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:26:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2018-09-18 12:26:44,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 16618. [2018-09-18 12:26:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16618 states. [2018-09-18 12:26:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 21854 transitions. [2018-09-18 12:26:44,907 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 21854 transitions. Word has length 266 [2018-09-18 12:26:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:44,908 INFO L480 AbstractCegarLoop]: Abstraction has 16618 states and 21854 transitions. [2018-09-18 12:26:44,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:26:44,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 21854 transitions. [2018-09-18 12:26:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-09-18 12:26:44,925 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:44,925 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:44,925 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:44,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1237035280, now seen corresponding path program 1 times [2018-09-18 12:26:44,926 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:44,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:44,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:44,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:44,927 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 167 proven. 61 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:26:45,332 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:26:45,332 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 12:26:45,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:45,352 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:26:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:45,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:26:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-18 12:26:45,770 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:26:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-18 12:26:46,217 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:26:46,217 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2018-09-18 12:26:46,218 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:46,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:26:46,219 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:26:46,219 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-18 12:26:46,219 INFO L87 Difference]: Start difference. First operand 16618 states and 21854 transitions. Second operand 3 states. [2018-09-18 12:26:50,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:26:50,723 INFO L93 Difference]: Finished difference Result 33230 states and 43726 transitions. [2018-09-18 12:26:50,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:26:50,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2018-09-18 12:26:50,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:26:50,809 INFO L225 Difference]: With dead ends: 33230 [2018-09-18 12:26:50,809 INFO L226 Difference]: Without dead ends: 16618 [2018-09-18 12:26:51,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-18 12:26:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16618 states. [2018-09-18 12:26:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16618 to 15907. [2018-09-18 12:26:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15907 states. [2018-09-18 12:26:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15907 states to 15907 states and 20379 transitions. [2018-09-18 12:26:51,410 INFO L78 Accepts]: Start accepts. Automaton has 15907 states and 20379 transitions. Word has length 310 [2018-09-18 12:26:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:26:51,411 INFO L480 AbstractCegarLoop]: Abstraction has 15907 states and 20379 transitions. [2018-09-18 12:26:51,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:26:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15907 states and 20379 transitions. [2018-09-18 12:26:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-09-18 12:26:51,441 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:26:51,442 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:26:51,442 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:26:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1952615328, now seen corresponding path program 1 times [2018-09-18 12:26:51,443 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:26:51,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:51,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:51,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:26:51,444 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:26:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 126 proven. 86 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:26:52,099 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:26:52,099 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 12:26:52,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:26:52,113 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:26:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:26:52,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:26:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 12:26:52,479 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:26:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 126 proven. 86 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:26:53,141 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:26:53,141 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-18 12:26:53,142 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:26:53,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:26:53,143 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:26:53,143 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:26:53,143 INFO L87 Difference]: Start difference. First operand 15907 states and 20379 transitions. Second operand 5 states. [2018-09-18 12:27:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:27:01,270 INFO L93 Difference]: Finished difference Result 47401 states and 62254 transitions. [2018-09-18 12:27:01,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:27:01,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 414 [2018-09-18 12:27:01,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:27:01,388 INFO L225 Difference]: With dead ends: 47401 [2018-09-18 12:27:01,389 INFO L226 Difference]: Without dead ends: 31500 [2018-09-18 12:27:01,425 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 826 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:27:01,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31500 states. [2018-09-18 12:27:01,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31500 to 31380. [2018-09-18 12:27:01,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31380 states. [2018-09-18 12:27:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31380 states to 31380 states and 38667 transitions. [2018-09-18 12:27:02,005 INFO L78 Accepts]: Start accepts. Automaton has 31380 states and 38667 transitions. Word has length 414 [2018-09-18 12:27:02,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:27:02,005 INFO L480 AbstractCegarLoop]: Abstraction has 31380 states and 38667 transitions. [2018-09-18 12:27:02,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:27:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 31380 states and 38667 transitions. [2018-09-18 12:27:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2018-09-18 12:27:02,062 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:27:02,062 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:02,063 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:27:02,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1256905873, now seen corresponding path program 1 times [2018-09-18 12:27:02,063 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:27:02,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:27:02,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:02,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:27:02,065 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:27:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:02,793 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 273 proven. 80 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-09-18 12:27:02,794 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:27:02,794 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 12:27:02,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:02,810 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:27:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:02,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:27:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 392 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 12:27:03,785 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:27:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 273 proven. 80 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-09-18 12:27:04,763 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:27:04,763 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:27:04,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:04,785 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:27:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:05,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:27:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 392 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 12:27:05,349 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:27:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 273 proven. 80 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-09-18 12:27:05,598 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:27:05,599 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 12:27:05,599 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:27:05,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:27:05,601 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:27:05,601 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:27:05,601 INFO L87 Difference]: Start difference. First operand 31380 states and 38667 transitions. Second operand 9 states. [2018-09-18 12:27:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:27:21,389 INFO L93 Difference]: Finished difference Result 85812 states and 111633 transitions. [2018-09-18 12:27:21,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-18 12:27:21,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 511 [2018-09-18 12:27:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:27:21,696 INFO L225 Difference]: With dead ends: 85812 [2018-09-18 12:27:21,696 INFO L226 Difference]: Without dead ends: 54331 [2018-09-18 12:27:21,874 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2076 GetRequests, 2046 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2018-09-18 12:27:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54331 states. [2018-09-18 12:27:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54331 to 53430. [2018-09-18 12:27:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53430 states. [2018-09-18 12:27:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53430 states to 53430 states and 66383 transitions. [2018-09-18 12:27:23,121 INFO L78 Accepts]: Start accepts. Automaton has 53430 states and 66383 transitions. Word has length 511 [2018-09-18 12:27:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:27:23,121 INFO L480 AbstractCegarLoop]: Abstraction has 53430 states and 66383 transitions. [2018-09-18 12:27:23,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:27:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 53430 states and 66383 transitions. [2018-09-18 12:27:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2018-09-18 12:27:23,224 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:27:23,224 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:27:23,224 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:27:23,225 INFO L82 PathProgramCache]: Analyzing trace with hash 777101679, now seen corresponding path program 1 times [2018-09-18 12:27:23,225 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:27:23,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:27:23,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:23,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:27:23,226 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:27:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 289 proven. 96 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-09-18 12:27:23,921 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:27:23,921 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:27:23,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:23,930 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:27:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:24,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:27:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 440 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 12:27:24,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:27:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 289 proven. 96 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-09-18 12:27:25,114 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:27:25,114 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:27:25,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:27:25,130 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:27:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:27:25,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:27:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 440 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 12:27:25,646 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:27:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 289 proven. 96 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-09-18 12:27:25,882 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:27:25,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 12:27:25,883 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:27:25,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:27:25,884 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:27:25,885 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-18 12:27:25,885 INFO L87 Difference]: Start difference. First operand 53430 states and 66383 transitions. Second operand 9 states. [2018-09-18 12:27:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:27:55,168 INFO L93 Difference]: Finished difference Result 167115 states and 280703 transitions. [2018-09-18 12:27:55,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-09-18 12:27:55,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 543 [2018-09-18 12:27:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:27:56,282 INFO L225 Difference]: With dead ends: 167115 [2018-09-18 12:27:56,282 INFO L226 Difference]: Without dead ends: 100129 [2018-09-18 12:27:57,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2264 GetRequests, 2205 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1041 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=683, Invalid=2857, Unknown=0, NotChecked=0, Total=3540 [2018-09-18 12:27:58,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100129 states. [2018-09-18 12:28:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100129 to 95189. [2018-09-18 12:28:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95189 states. [2018-09-18 12:28:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95189 states to 95189 states and 132794 transitions. [2018-09-18 12:28:01,153 INFO L78 Accepts]: Start accepts. Automaton has 95189 states and 132794 transitions. Word has length 543 [2018-09-18 12:28:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:28:01,154 INFO L480 AbstractCegarLoop]: Abstraction has 95189 states and 132794 transitions. [2018-09-18 12:28:01,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:28:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 95189 states and 132794 transitions. [2018-09-18 12:28:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2018-09-18 12:28:01,191 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:28:01,191 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:28:01,192 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:28:01,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2061242137, now seen corresponding path program 1 times [2018-09-18 12:28:01,192 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:28:01,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:01,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:01,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:01,193 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:28:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 171 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 12:28:02,763 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:28:02,763 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 12:28:02,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:02,771 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:28:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:02,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:28:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:03,065 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:28:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:03,264 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:28:03,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 12:28:03,265 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:28:03,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:28:03,266 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:28:03,266 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:28:03,266 INFO L87 Difference]: Start difference. First operand 95189 states and 132794 transitions. Second operand 3 states. [2018-09-18 12:28:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:28:09,599 INFO L93 Difference]: Finished difference Result 188890 states and 263812 transitions. [2018-09-18 12:28:09,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:28:09,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 581 [2018-09-18 12:28:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:28:10,039 INFO L225 Difference]: With dead ends: 188890 [2018-09-18 12:28:10,039 INFO L226 Difference]: Without dead ends: 94410 [2018-09-18 12:28:10,460 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1163 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:28:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94410 states. [2018-09-18 12:28:11,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94410 to 94407. [2018-09-18 12:28:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94407 states. [2018-09-18 12:28:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94407 states to 94407 states and 125697 transitions. [2018-09-18 12:28:13,673 INFO L78 Accepts]: Start accepts. Automaton has 94407 states and 125697 transitions. Word has length 581 [2018-09-18 12:28:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:28:13,674 INFO L480 AbstractCegarLoop]: Abstraction has 94407 states and 125697 transitions. [2018-09-18 12:28:13,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:28:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 94407 states and 125697 transitions. [2018-09-18 12:28:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2018-09-18 12:28:13,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:28:13,814 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:28:13,815 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:28:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash 26572920, now seen corresponding path program 1 times [2018-09-18 12:28:13,815 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:28:13,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:13,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:13,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:13,818 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:28:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:15,481 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 290 proven. 223 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-09-18 12:28:15,481 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:28:15,481 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:28:15,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:15,489 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:28:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:16,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:28:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 512 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:28:17,497 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:28:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 512 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:28:18,597 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:28:18,597 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:28:18,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:18,614 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:28:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:19,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:28:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 512 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:28:19,490 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:28:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 512 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:28:20,307 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:28:20,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 22 [2018-09-18 12:28:20,308 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:28:20,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-18 12:28:20,310 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-18 12:28:20,310 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2018-09-18 12:28:20,310 INFO L87 Difference]: Start difference. First operand 94407 states and 125697 transitions. Second operand 16 states. [2018-09-18 12:28:36,010 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2018-09-18 12:28:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:28:42,625 INFO L93 Difference]: Finished difference Result 186449 states and 248001 transitions. [2018-09-18 12:28:42,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 12:28:42,626 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 830 [2018-09-18 12:28:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:28:42,985 INFO L225 Difference]: With dead ends: 186449 [2018-09-18 12:28:42,986 INFO L226 Difference]: Without dead ends: 87969 [2018-09-18 12:28:43,299 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3394 GetRequests, 3336 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=604, Invalid=2588, Unknown=0, NotChecked=0, Total=3192 [2018-09-18 12:28:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87969 states. [2018-09-18 12:28:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87969 to 86099. [2018-09-18 12:28:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86099 states. [2018-09-18 12:28:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86099 states to 86099 states and 102252 transitions. [2018-09-18 12:28:45,088 INFO L78 Accepts]: Start accepts. Automaton has 86099 states and 102252 transitions. Word has length 830 [2018-09-18 12:28:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:28:45,089 INFO L480 AbstractCegarLoop]: Abstraction has 86099 states and 102252 transitions. [2018-09-18 12:28:45,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-18 12:28:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 86099 states and 102252 transitions. [2018-09-18 12:28:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2018-09-18 12:28:45,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:28:45,185 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:28:45,186 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:28:45,186 INFO L82 PathProgramCache]: Analyzing trace with hash 774691123, now seen corresponding path program 1 times [2018-09-18 12:28:45,186 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:28:45,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:45,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:45,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:28:45,188 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:28:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 698 proven. 5 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:46,982 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:28:46,982 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:28:46,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:46,994 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:28:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:47,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:28:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 698 proven. 5 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:50,498 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:28:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 698 proven. 5 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:51,435 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:28:51,435 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:28:51,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:28:51,451 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:28:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:28:51,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:28:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 698 proven. 5 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:52,528 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:28:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 698 proven. 5 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:28:53,398 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:28:53,399 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 12:28:53,399 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:28:53,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:28:53,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:28:53,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:28:53,401 INFO L87 Difference]: Start difference. First operand 86099 states and 102252 transitions. Second operand 9 states. [2018-09-18 12:29:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:29:05,141 INFO L93 Difference]: Finished difference Result 183618 states and 242588 transitions. [2018-09-18 12:29:05,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 12:29:05,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 974 [2018-09-18 12:29:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:29:05,610 INFO L225 Difference]: With dead ends: 183618 [2018-09-18 12:29:05,610 INFO L226 Difference]: Without dead ends: 96087 [2018-09-18 12:29:05,954 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3920 GetRequests, 3892 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-18 12:29:06,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96087 states. [2018-09-18 12:29:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96087 to 95177. [2018-09-18 12:29:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95177 states. [2018-09-18 12:29:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95177 states to 95177 states and 122494 transitions. [2018-09-18 12:29:08,494 INFO L78 Accepts]: Start accepts. Automaton has 95177 states and 122494 transitions. Word has length 974 [2018-09-18 12:29:08,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:29:08,495 INFO L480 AbstractCegarLoop]: Abstraction has 95177 states and 122494 transitions. [2018-09-18 12:29:08,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:29:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 95177 states and 122494 transitions. [2018-09-18 12:29:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2018-09-18 12:29:08,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:08,557 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:29:08,557 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:08,557 INFO L82 PathProgramCache]: Analyzing trace with hash 692385399, now seen corresponding path program 1 times [2018-09-18 12:29:08,558 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:08,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:08,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:08,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:08,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:09,336 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 12:29:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 663 proven. 45 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-18 12:29:10,647 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:29:10,648 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:29:10,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:10,655 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:29:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:10,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:29:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2018-09-18 12:29:11,973 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:29:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 189 proven. 236 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2018-09-18 12:29:13,833 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:29:13,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-18 12:29:13,833 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:13,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:29:13,834 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:29:13,835 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:29:13,835 INFO L87 Difference]: Start difference. First operand 95177 states and 122494 transitions. Second operand 5 states. [2018-09-18 12:29:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:29:21,293 INFO L93 Difference]: Finished difference Result 192056 states and 247626 transitions. [2018-09-18 12:29:21,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:29:21,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1019 [2018-09-18 12:29:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:29:21,658 INFO L225 Difference]: With dead ends: 192056 [2018-09-18 12:29:21,658 INFO L226 Difference]: Without dead ends: 97588 [2018-09-18 12:29:21,907 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2054 GetRequests, 2035 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-09-18 12:29:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97588 states. [2018-09-18 12:29:23,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97588 to 97556. [2018-09-18 12:29:23,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97556 states. [2018-09-18 12:29:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97556 states to 97556 states and 124974 transitions. [2018-09-18 12:29:24,202 INFO L78 Accepts]: Start accepts. Automaton has 97556 states and 124974 transitions. Word has length 1019 [2018-09-18 12:29:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:29:24,202 INFO L480 AbstractCegarLoop]: Abstraction has 97556 states and 124974 transitions. [2018-09-18 12:29:24,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:29:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 97556 states and 124974 transitions. [2018-09-18 12:29:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1582 [2018-09-18 12:29:24,339 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:24,340 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-09-18 12:29:24,340 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:24,341 INFO L82 PathProgramCache]: Analyzing trace with hash 124526035, now seen corresponding path program 1 times [2018-09-18 12:29:24,341 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:24,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:24,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:24,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:24,342 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 410 proven. 1248 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-09-18 12:29:27,323 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:29:27,323 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:29:27,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:27,331 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:29:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:27,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:29:28,000 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2018-09-18 12:29:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2018-09-18 12:29:29,217 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:29:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 1962 trivial. 0 not checked. [2018-09-18 12:29:30,283 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:29:30,283 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-09-18 12:29:30,283 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:30,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:29:30,284 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:29:30,285 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:29:30,285 INFO L87 Difference]: Start difference. First operand 97556 states and 124974 transitions. Second operand 3 states. [2018-09-18 12:29:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:29:37,737 INFO L93 Difference]: Finished difference Result 225413 states and 294608 transitions. [2018-09-18 12:29:37,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:29:37,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1581 [2018-09-18 12:29:37,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:29:38,360 INFO L225 Difference]: With dead ends: 225413 [2018-09-18 12:29:38,361 INFO L226 Difference]: Without dead ends: 128566 [2018-09-18 12:29:38,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3178 GetRequests, 3169 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:29:38,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128566 states. Received shutdown request... [2018-09-18 12:29:39,711 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:29:39,716 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:29:39,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:29:39 BoogieIcfgContainer [2018-09-18 12:29:39,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:29:39,717 INFO L168 Benchmark]: Toolchain (without parser) took 224935.66 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,718 INFO L168 Benchmark]: CDTParser took 0.19 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 12:29:39,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1798.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,720 INFO L168 Benchmark]: Boogie Preprocessor took 617.23 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,720 INFO L168 Benchmark]: RCFGBuilder took 8419.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 483.6 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,721 INFO L168 Benchmark]: TraceAbstraction took 213887.95 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-09-18 12:29:39,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1798.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 206.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 617.23 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8419.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 483.6 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213887.95 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 213.8s OverallTime, 14 OverallIterations, 7 TraceHistogramMax, 156.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5809 SDtfs, 49917 SDslu, 3380 SDs, 0 SdLazy, 94572 SolverSat, 17490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19564 GetRequests, 19304 SyntacticMatches, 39 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2171 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97556occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 16.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 9619 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 27.5s InterpolantComputationTime, 17293 NumberOfCodeBlocks, 17293 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 26874 ConstructedInterpolants, 69 QuantifiedInterpolants, 61551009 SizeOfPredicates, 12 NumberOfNonLiveVariables, 12844 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 40 InterpolantComputations, 13 PerfectInterpolantSequences, 21423/24048 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label50_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-29-39-739.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label50_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-29-39-739.csv Completed graceful shutdown