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/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:08:40,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:08:40,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:08:40,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:08:40,792 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:08:40,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:08:40,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:08:40,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:08:40,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:08:40,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:08:40,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:08:40,811 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:08:40,812 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:08:40,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:08:40,814 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:08:40,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:08:40,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:08:40,818 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:08:40,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:08:40,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:08:40,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:08:40,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:08:40,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:08:40,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:08:40,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:08:40,827 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:08:40,828 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:08:40,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:08:40,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:08:40,831 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:08:40,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:08:40,832 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:08:40,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:08:40,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:08:40,834 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:08:40,835 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:08:40,835 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 12:08:40,854 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:08:40,854 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:08:40,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:08:40,855 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:08:40,855 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:08:40,856 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:08:40,856 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:08:40,856 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:08:40,857 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:08:40,857 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:08:40,857 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:08:40,857 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:08:40,858 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:08:40,858 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:08:40,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:08:40,860 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:08:40,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:08:40,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:08:40,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:08:40,861 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:08:40,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:08:40,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:08:40,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:08:40,863 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:08:40,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:08:40,863 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:08:40,863 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:08:40,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:08:40,864 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:08:40,864 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:08:40,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:08:40,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:08:40,865 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:08:40,865 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:08:40,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:08:40,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:08:40,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:08:40,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:08:40,934 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:08:40,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-18 12:08:41,340 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f61891b/f821ebe500c04fe48bf8907882995f77/FLAGaec37f4b8 [2018-09-18 12:08:41,737 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:08:41,738 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-18 12:08:41,770 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f61891b/f821ebe500c04fe48bf8907882995f77/FLAGaec37f4b8 [2018-09-18 12:08:41,787 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f61891b/f821ebe500c04fe48bf8907882995f77 [2018-09-18 12:08:41,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:08:41,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:08:41,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:08:41,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:08:41,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:08:41,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:08:41" (1/1) ... [2018-09-18 12:08:41,815 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 12:08:41, skipping insertion in model container [2018-09-18 12:08:41,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:08:41" (1/1) ... [2018-09-18 12:08:41,827 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:08:42,786 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:08:42,810 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:08:43,317 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:08:43,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43 WrapperNode [2018-09-18 12:08:43,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:08:43,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:08:43,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:08:43,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:08:43,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:43,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:43,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:08:43,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:08:43,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:08:43,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:08:44,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (1/1) ... [2018-09-18 12:08:44,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:08:44,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:08:44,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:08:44,664 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:08:44,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (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 12:08:44,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:08:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:08:44,738 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:08:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:08:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:08:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:08:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:08:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:08:44,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:08:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:08:56,862 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:08:56,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:08:56 BoogieIcfgContainer [2018-09-18 12:08:56,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:08:56,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:08:56,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:08:56,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:08:56,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:08:41" (1/3) ... [2018-09-18 12:08:56,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffc570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:08:56, skipping insertion in model container [2018-09-18 12:08:56,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:43" (2/3) ... [2018-09-18 12:08:56,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffc570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:08:56, skipping insertion in model container [2018-09-18 12:08:56,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:08:56" (3/3) ... [2018-09-18 12:08:56,874 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-09-18 12:08:56,884 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:08:56,894 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:08:56,954 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:08:56,955 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:08:56,955 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:08:56,955 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:08:56,955 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:08:56,955 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:08:56,955 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:08:56,956 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:08:56,956 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:08:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-18 12:08:57,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-18 12:08:57,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:08:57,003 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] [2018-09-18 12:08:57,006 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:08:57,012 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-09-18 12:08:57,015 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:08:57,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:08:57,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:08:57,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:08:57,065 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:08:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:08:57,549 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 12:08:57,554 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:08:57,555 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:08:57,555 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:08:57,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:08:57,577 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:08:57,578 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:08:57,581 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-18 12:09:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:09:08,814 INFO L93 Difference]: Finished difference Result 2139 states and 3961 transitions. [2018-09-18 12:09:08,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:09:08,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-09-18 12:09:08,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:09:08,854 INFO L225 Difference]: With dead ends: 2139 [2018-09-18 12:09:08,854 INFO L226 Difference]: Without dead ends: 1529 [2018-09-18 12:09:08,864 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 12:09:08,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2018-09-18 12:09:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2018-09-18 12:09:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-09-18 12:09:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2413 transitions. [2018-09-18 12:09:09,021 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2413 transitions. Word has length 53 [2018-09-18 12:09:09,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:09:09,022 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 2413 transitions. [2018-09-18 12:09:09,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:09:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2413 transitions. [2018-09-18 12:09:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-18 12:09:09,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:09,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:09,036 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:09,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-09-18 12:09:09,037 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:09,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:09,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:09,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:09,040 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:09,467 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:09:09,467 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 12:09:09,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:09,483 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:09:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:09,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:09:34,322 WARN L178 SmtUtils]: Spent 24.31 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-09-18 12:09:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:34,532 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:09:34,751 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-18 12:09:41,087 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-09-18 12:09:41,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-09-18 12:09:42,087 WARN L178 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-09-18 12:09:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:42,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:09:42,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-09-18 12:09:42,483 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:42,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:09:42,485 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:09:42,485 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=105, Unknown=2, NotChecked=0, Total=156 [2018-09-18 12:09:42,487 INFO L87 Difference]: Start difference. First operand 1527 states and 2413 transitions. Second operand 6 states. [2018-09-18 12:10:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:20,238 INFO L93 Difference]: Finished difference Result 5759 states and 9379 transitions. [2018-09-18 12:10:20,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:10:20,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-09-18 12:10:20,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:20,274 INFO L225 Difference]: With dead ends: 5759 [2018-09-18 12:10:20,274 INFO L226 Difference]: Without dead ends: 4238 [2018-09-18 12:10:20,286 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=49, Invalid=105, Unknown=2, NotChecked=0, Total=156 [2018-09-18 12:10:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2018-09-18 12:10:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 4202. [2018-09-18 12:10:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4202 states. [2018-09-18 12:10:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4202 states to 4202 states and 6650 transitions. [2018-09-18 12:10:20,443 INFO L78 Accepts]: Start accepts. Automaton has 4202 states and 6650 transitions. Word has length 128 [2018-09-18 12:10:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:20,444 INFO L480 AbstractCegarLoop]: Abstraction has 4202 states and 6650 transitions. [2018-09-18 12:10:20,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:10:20,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4202 states and 6650 transitions. [2018-09-18 12:10:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-18 12:10:20,457 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:20,458 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, 2, 2, 2, 2, 2, 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] [2018-09-18 12:10:20,459 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:20,459 INFO L82 PathProgramCache]: Analyzing trace with hash -385017723, now seen corresponding path program 1 times [2018-09-18 12:10:20,459 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:20,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:20,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:20,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:20,461 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 12:10:20,804 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:20,804 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 12:10:20,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:20,819 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:20,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:10:21,131 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:10:21,518 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:21,518 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:10:21,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:21,536 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:21,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:10:21,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:10:21,984 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 12:10:21,984 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-18 12:10:21,984 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:10:21,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:10:21,985 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:10:21,986 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:10:21,986 INFO L87 Difference]: Start difference. First operand 4202 states and 6650 transitions. Second operand 5 states. [2018-09-18 12:10:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:27,620 INFO L93 Difference]: Finished difference Result 11973 states and 19611 transitions. [2018-09-18 12:10:27,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:10:27,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2018-09-18 12:10:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:27,670 INFO L225 Difference]: With dead ends: 11973 [2018-09-18 12:10:27,670 INFO L226 Difference]: Without dead ends: 7777 [2018-09-18 12:10:27,691 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 834 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:10:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7777 states. [2018-09-18 12:10:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7777 to 7775. [2018-09-18 12:10:27,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7775 states. [2018-09-18 12:10:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7775 states to 7775 states and 11920 transitions. [2018-09-18 12:10:27,935 INFO L78 Accepts]: Start accepts. Automaton has 7775 states and 11920 transitions. Word has length 211 [2018-09-18 12:10:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:27,936 INFO L480 AbstractCegarLoop]: Abstraction has 7775 states and 11920 transitions. [2018-09-18 12:10:27,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:10:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7775 states and 11920 transitions. [2018-09-18 12:10:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-09-18 12:10:27,942 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:27,942 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:10:27,943 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:27,943 INFO L82 PathProgramCache]: Analyzing trace with hash 320961997, now seen corresponding path program 1 times [2018-09-18 12:10:27,943 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:27,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:27,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:27,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:27,945 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:28,289 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:10:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-18 12:10:28,604 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:28,604 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:10:28,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:28,621 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:28,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:10:28,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:10:29,293 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:29,294 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:10:29,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:29,310 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:29,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:10:29,566 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:10:29,825 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 12:10:29,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 13 [2018-09-18 12:10:29,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:10:29,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:10:29,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:10:29,827 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:10:29,828 INFO L87 Difference]: Start difference. First operand 7775 states and 11920 transitions. Second operand 5 states. [2018-09-18 12:10:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:37,863 INFO L93 Difference]: Finished difference Result 19633 states and 30294 transitions. [2018-09-18 12:10:37,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:10:37,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2018-09-18 12:10:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:37,930 INFO L225 Difference]: With dead ends: 19633 [2018-09-18 12:10:37,930 INFO L226 Difference]: Without dead ends: 11864 [2018-09-18 12:10:37,964 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 849 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-09-18 12:10:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11864 states. [2018-09-18 12:10:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11864 to 11845. [2018-09-18 12:10:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11845 states. [2018-09-18 12:10:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11845 states to 11845 states and 16857 transitions. [2018-09-18 12:10:38,279 INFO L78 Accepts]: Start accepts. Automaton has 11845 states and 16857 transitions. Word has length 215 [2018-09-18 12:10:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:38,280 INFO L480 AbstractCegarLoop]: Abstraction has 11845 states and 16857 transitions. [2018-09-18 12:10:38,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:10:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 11845 states and 16857 transitions. [2018-09-18 12:10:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-09-18 12:10:38,288 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:38,288 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:10:38,289 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1931953849, now seen corresponding path program 1 times [2018-09-18 12:10:38,289 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:38,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:38,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:38,290 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:38,591 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:10:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 118 proven. 54 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 12:10:38,684 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:38,684 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:10:38,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:38,696 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:38,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:38,878 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:39,100 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:10:39,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 12:10:39,101 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:10:39,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:10:39,102 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:10:39,103 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:10:39,103 INFO L87 Difference]: Start difference. First operand 11845 states and 16857 transitions. Second operand 3 states. [2018-09-18 12:10:43,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:43,112 INFO L93 Difference]: Finished difference Result 23670 states and 33721 transitions. [2018-09-18 12:10:43,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:10:43,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2018-09-18 12:10:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:43,179 INFO L225 Difference]: With dead ends: 23670 [2018-09-18 12:10:43,179 INFO L226 Difference]: Without dead ends: 11831 [2018-09-18 12:10:43,227 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 456 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:10:43,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11831 states. [2018-09-18 12:10:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11831 to 11831. [2018-09-18 12:10:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11831 states. [2018-09-18 12:10:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11831 states to 11831 states and 16001 transitions. [2018-09-18 12:10:43,464 INFO L78 Accepts]: Start accepts. Automaton has 11831 states and 16001 transitions. Word has length 228 [2018-09-18 12:10:43,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:43,466 INFO L480 AbstractCegarLoop]: Abstraction has 11831 states and 16001 transitions. [2018-09-18 12:10:43,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:10:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 11831 states and 16001 transitions. [2018-09-18 12:10:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-09-18 12:10:43,479 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:43,479 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 12:10:43,480 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:43,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1967517566, now seen corresponding path program 1 times [2018-09-18 12:10:43,480 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:43,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:43,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:43,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:43,481 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:44,114 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:44,114 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 12:10:44,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:44,130 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:44,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:44,385 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:44,548 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:44,548 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:10:44,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:44,566 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:44,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:45,010 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:45,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-18 12:10:45,700 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:10:45,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 8 [2018-09-18 12:10:45,701 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:10:45,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 12:10:45,703 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 12:10:45,703 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:10:45,704 INFO L87 Difference]: Start difference. First operand 11831 states and 16001 transitions. Second operand 7 states. [2018-09-18 12:10:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:57,630 INFO L93 Difference]: Finished difference Result 30569 states and 42912 transitions. [2018-09-18 12:10:57,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:10:57,631 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2018-09-18 12:10:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:57,708 INFO L225 Difference]: With dead ends: 30569 [2018-09-18 12:10:57,709 INFO L226 Difference]: Without dead ends: 18271 [2018-09-18 12:10:57,736 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1320 GetRequests, 1306 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:10:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18271 states. [2018-09-18 12:10:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18271 to 17269. [2018-09-18 12:10:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17269 states. [2018-09-18 12:10:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17269 states to 17269 states and 21885 transitions. [2018-09-18 12:10:58,080 INFO L78 Accepts]: Start accepts. Automaton has 17269 states and 21885 transitions. Word has length 327 [2018-09-18 12:10:58,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:58,081 INFO L480 AbstractCegarLoop]: Abstraction has 17269 states and 21885 transitions. [2018-09-18 12:10:58,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 12:10:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 17269 states and 21885 transitions. [2018-09-18 12:10:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-09-18 12:10:58,095 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:58,096 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 12:10:58,096 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash 670201538, now seen corresponding path program 1 times [2018-09-18 12:10:58,096 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:58,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:58,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:58,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:58,098 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:59,192 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 12:10:59,822 WARN L178 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-09-18 12:11:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 258 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:11:00,142 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:11:00,142 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:11:00,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:11:00,152 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:11:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:11:00,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:11:00,612 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-09-18 12:11:00,612 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:11:01,722 WARN L178 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2018-09-18 12:11:04,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 12:11:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 144 proven. 264 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:11:05,345 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:11:05,345 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:11:05,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:11:05,360 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:11:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:11:05,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:11:07,723 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 48 DAG size of output: 21 [2018-09-18 12:11:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 364 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-09-18 12:11:08,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:11:08,474 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2018-09-18 12:11:08,614 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-09-18 12:11:09,084 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 12:11:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 144 proven. 264 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:11:09,727 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:11:09,728 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8, 8, 8] total 26 [2018-09-18 12:11:09,728 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:11:09,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 12:11:09,731 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 12:11:09,732 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=523, Unknown=1, NotChecked=0, Total=650 [2018-09-18 12:11:09,732 INFO L87 Difference]: Start difference. First operand 17269 states and 21885 transitions. Second operand 15 states. [2018-09-18 12:11:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:11:45,832 INFO L93 Difference]: Finished difference Result 49919 states and 65700 transitions. [2018-09-18 12:11:45,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-09-18 12:11:45,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 350 [2018-09-18 12:11:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:11:45,932 INFO L225 Difference]: With dead ends: 49919 [2018-09-18 12:11:45,932 INFO L226 Difference]: Without dead ends: 32187 [2018-09-18 12:11:45,974 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1512 GetRequests, 1424 SyntacticMatches, 10 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2075 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1271, Invalid=5048, Unknown=1, NotChecked=0, Total=6320 [2018-09-18 12:11:46,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32187 states. [2018-09-18 12:11:46,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32187 to 26599. [2018-09-18 12:11:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26599 states. [2018-09-18 12:11:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26599 states to 26599 states and 34219 transitions. [2018-09-18 12:11:46,772 INFO L78 Accepts]: Start accepts. Automaton has 26599 states and 34219 transitions. Word has length 350 [2018-09-18 12:11:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:11:46,773 INFO L480 AbstractCegarLoop]: Abstraction has 26599 states and 34219 transitions. [2018-09-18 12:11:46,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 12:11:46,773 INFO L276 IsEmpty]: Start isEmpty. Operand 26599 states and 34219 transitions. [2018-09-18 12:11:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2018-09-18 12:11:46,789 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:11:46,790 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:46,790 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:11:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1021803679, now seen corresponding path program 1 times [2018-09-18 12:11:46,791 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:11:46,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:11:46,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:11:46,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:11:46,792 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:11:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:11:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 146 proven. 262 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:11:48,197 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:11:48,197 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:11:48,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:11:48,204 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:11:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:11:48,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:11:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 311 proven. 55 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-09-18 12:11:49,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:11:50,020 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 12:11:50,094 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 108 [2018-09-18 12:11:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 148 proven. 260 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:11:51,611 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:11:51,612 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:11:51,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:11:51,627 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:11:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:11:51,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:12:03,733 WARN L178 SmtUtils]: Spent 11.29 s on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2018-09-18 12:12:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 279 proven. 87 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-09-18 12:12:04,397 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:12:04,726 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2018-09-18 12:12:05,011 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 22 [2018-09-18 12:12:05,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-09-18 12:12:06,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 12:12:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 151 proven. 262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:12:08,429 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:12:08,430 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10, 12, 16] total 52 [2018-09-18 12:12:08,430 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:12:08,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-18 12:12:08,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-18 12:12:08,432 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2018-09-18 12:12:08,432 INFO L87 Difference]: Start difference. First operand 26599 states and 34219 transitions. Second operand 22 states. [2018-09-18 12:12:09,463 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 15 [2018-09-18 12:12:10,402 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2018-09-18 12:12:10,760 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2018-09-18 12:12:14,258 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-09-18 12:12:15,820 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2018-09-18 12:12:17,105 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-09-18 12:12:17,532 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-09-18 12:12:24,861 WARN L178 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2018-09-18 12:12:25,218 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 14 [2018-09-18 12:12:26,109 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-09-18 12:12:28,804 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-09-18 12:12:32,540 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2018-09-18 12:12:33,373 WARN L178 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2018-09-18 12:12:34,174 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2018-09-18 12:12:35,148 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2018-09-18 12:12:35,457 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-09-18 12:12:42,884 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2018-09-18 12:12:45,199 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 Received shutdown request... [2018-09-18 12:12:45,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-09-18 12:12:45,409 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:12:45,415 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:12:45,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:12:45 BoogieIcfgContainer [2018-09-18 12:12:45,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:12:45,416 INFO L168 Benchmark]: Toolchain (without parser) took 243616.77 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -630.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-18 12:12:45,417 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:12:45,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1726.59 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 12:12:45,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 278.90 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:12:45,419 INFO L168 Benchmark]: Boogie Preprocessor took 853.46 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 928.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:12:45,420 INFO L168 Benchmark]: RCFGBuilder took 12199.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 452.9 MB). Peak memory consumption was 452.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:12:45,421 INFO L168 Benchmark]: TraceAbstraction took 228550.62 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -164.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-18 12:12:45,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1726.59 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 278.90 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 853.46 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 928.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12199.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 452.9 MB). Peak memory consumption was 452.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228550.62 ms. Allocated memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -164.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 146). Cancelled while BasicCegarLoop was constructing difference of abstraction (26599states) and FLOYD_HOARE automaton (currently 86 states, 22 states before enhancement), while ReachableStatesComputation was computing reachable states (21382 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 228.4s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 152.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2426 SDtfs, 37521 SDslu, 3591 SDs, 0 SdLazy, 43816 SolverSat, 10274 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 126.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7103 GetRequests, 6800 SyntacticMatches, 44 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7405 ImplicationChecksByTransitivity, 69.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26599occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 6649 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 69.9s InterpolantComputationTime, 5319 NumberOfCodeBlocks, 5319 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 8679 ConstructedInterpolants, 638 QuantifiedInterpolants, 28193141 SizeOfPredicates, 44 NumberOfNonLiveVariables, 5898 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 32 InterpolantComputations, 7 PerfectInterpolantSequences, 6585/8475 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/Problem17_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-12-45-439.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-12-45-439.csv Completed graceful shutdown