java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:34:28,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:34:28,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:34:28,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:34:28,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:34:28,832 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:34:28,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:34:28,837 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:34:28,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:34:28,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:34:28,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:34:28,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:34:28,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:34:28,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:34:28,848 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:34:28,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:34:28,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:34:28,862 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:34:28,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:34:28,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:34:28,867 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:34:28,868 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:34:28,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:34:28,871 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:34:28,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:34:28,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:34:28,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:34:28,873 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:34:28,875 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:34:28,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:34:28,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:34:28,878 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:34:28,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:34:28,878 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:34:28,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:34:28,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:34:28,882 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:34:28,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:34:28,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:34:28,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:34:28,906 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:34:28,907 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:34:28,907 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:34:28,907 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:34:28,907 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:34:28,907 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:34:28,908 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:34:28,908 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:34:28,908 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:34:28,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:34:28,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:34:28,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:34:28,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:34:28,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:34:28,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:34:28,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:34:28,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:34:28,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:34:28,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:34:28,911 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:34:28,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:34:28,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:34:28,912 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:34:28,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:34:28,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:34:28,912 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:34:28,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:34:28,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:34:28,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:34:28,913 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:34:28,913 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:34:28,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:34:28,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:34:28,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:34:28,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:34:28,988 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:34:28,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label46_true-unreach-call.c [2018-09-18 11:34:29,344 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71955d8c/a8c77a60a0a3471b9a92d250ff6dac17/FLAGa6b7afa46 [2018-09-18 11:34:29,804 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:34:29,805 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label46_true-unreach-call.c [2018-09-18 11:34:29,834 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71955d8c/a8c77a60a0a3471b9a92d250ff6dac17/FLAGa6b7afa46 [2018-09-18 11:34:29,851 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71955d8c/a8c77a60a0a3471b9a92d250ff6dac17 [2018-09-18 11:34:29,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:34:29,870 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:34:29,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:34:29,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:34:29,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:34:29,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:34:29" (1/1) ... [2018-09-18 11:34:29,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201dfe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:29, skipping insertion in model container [2018-09-18 11:34:29,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:34:29" (1/1) ... [2018-09-18 11:34:29,899 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:34:31,220 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:34:31,241 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:34:31,828 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:34:32,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32 WrapperNode [2018-09-18 11:34:32,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:34:32,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:34:32,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:34:32,074 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:34:32,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:32,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:32,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:34:32,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:34:32,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:34:32,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:34:32,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:32,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:32,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:32,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:33,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:33,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:33,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... [2018-09-18 11:34:33,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:34:33,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:34:33,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:34:33,232 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:34:33,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:34:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:34:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:34:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:34:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:34:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:34:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:34:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:34:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:34:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:34:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:34:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:34:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:34:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:34:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:34:44,884 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:34:44,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:34:44 BoogieIcfgContainer [2018-09-18 11:34:44,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:34:44,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:34:44,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:34:44,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:34:44,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:34:29" (1/3) ... [2018-09-18 11:34:44,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd518ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:34:44, skipping insertion in model container [2018-09-18 11:34:44,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:34:32" (2/3) ... [2018-09-18 11:34:44,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd518ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:34:44, skipping insertion in model container [2018-09-18 11:34:44,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:34:44" (3/3) ... [2018-09-18 11:34:44,895 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label46_true-unreach-call.c [2018-09-18 11:34:44,905 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:34:44,915 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:34:44,977 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:34:44,978 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:34:44,978 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:34:44,978 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:34:44,978 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:34:44,979 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:34:44,979 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:34:44,979 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:34:44,979 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:34:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-18 11:34:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-18 11:34:45,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:45,032 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] [2018-09-18 11:34:45,033 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:45,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1952423036, now seen corresponding path program 1 times [2018-09-18 11:34:45,041 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:45,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:45,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:45,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:45,090 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:45,613 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:34:45,614 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:34:45,614 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:45,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:34:45,637 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:34:45,638 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:34:45,641 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-09-18 11:34:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:34:58,332 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-09-18 11:34:58,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:34:58,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-09-18 11:34:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:34:58,380 INFO L225 Difference]: With dead ends: 3234 [2018-09-18 11:34:58,380 INFO L226 Difference]: Without dead ends: 2388 [2018-09-18 11:34:58,396 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 11:34:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-18 11:34:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-09-18 11:34:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-09-18 11:34:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-09-18 11:34:58,605 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 68 [2018-09-18 11:34:58,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:34:58,606 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-09-18 11:34:58,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:34:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-09-18 11:34:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-09-18 11:34:58,617 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:34:58,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:34:58,618 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:34:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash 43116078, now seen corresponding path program 1 times [2018-09-18 11:34:58,618 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:34:58,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:58,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:34:58,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:34:58,620 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:34:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:34:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:34:59,043 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:34:59,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:34:59,044 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:34:59,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:34:59,046 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:34:59,047 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:34:59,047 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-09-18 11:35:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:13,241 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-09-18 11:35:13,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:35:13,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-09-18 11:35:13,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:13,292 INFO L225 Difference]: With dead ends: 9453 [2018-09-18 11:35:13,293 INFO L226 Difference]: Without dead ends: 7071 [2018-09-18 11:35:13,307 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 11:35:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-09-18 11:35:13,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-09-18 11:35:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-09-18 11:35:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-09-18 11:35:13,519 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 168 [2018-09-18 11:35:13,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:13,521 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-09-18 11:35:13,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:35:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-09-18 11:35:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-18 11:35:13,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:13,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:35:13,536 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:13,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1020213398, now seen corresponding path program 1 times [2018-09-18 11:35:13,537 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:13,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:13,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:13,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:13,540 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:13,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:13,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:35:13,807 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:13,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:35:13,808 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:35:13,808 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:35:13,809 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 4 states. [2018-09-18 11:35:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:24,438 INFO L93 Difference]: Finished difference Result 27807 states and 43318 transitions. [2018-09-18 11:35:24,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:35:24,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 218 [2018-09-18 11:35:24,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:24,561 INFO L225 Difference]: With dead ends: 27807 [2018-09-18 11:35:24,562 INFO L226 Difference]: Without dead ends: 20790 [2018-09-18 11:35:24,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:35:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20790 states. [2018-09-18 11:35:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20790 to 20790. [2018-09-18 11:35:25,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20790 states. [2018-09-18 11:35:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20790 states to 20790 states and 31070 transitions. [2018-09-18 11:35:25,164 INFO L78 Accepts]: Start accepts. Automaton has 20790 states and 31070 transitions. Word has length 218 [2018-09-18 11:35:25,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:25,165 INFO L480 AbstractCegarLoop]: Abstraction has 20790 states and 31070 transitions. [2018-09-18 11:35:25,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:35:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 20790 states and 31070 transitions. [2018-09-18 11:35:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-09-18 11:35:25,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:25,201 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:35:25,202 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:25,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1511512600, now seen corresponding path program 1 times [2018-09-18 11:35:25,202 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:25,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:25,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:25,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:25,204 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:25,674 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-09-18 11:35:25,675 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:35:25,675 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:35:25,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:25,685 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:35:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:25,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:35:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-18 11:35:26,251 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:35:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-18 11:35:26,585 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:35:26,586 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2018-09-18 11:35:26,586 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:26,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:35:26,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:35:26,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:35:26,588 INFO L87 Difference]: Start difference. First operand 20790 states and 31070 transitions. Second operand 3 states. [2018-09-18 11:35:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:33,710 INFO L93 Difference]: Finished difference Result 48552 states and 74265 transitions. [2018-09-18 11:35:33,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:35:33,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2018-09-18 11:35:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:33,908 INFO L225 Difference]: With dead ends: 48552 [2018-09-18 11:35:33,908 INFO L226 Difference]: Without dead ends: 27768 [2018-09-18 11:35:34,033 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 672 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:35:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27768 states. [2018-09-18 11:35:34,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27768 to 27768. [2018-09-18 11:35:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27768 states. [2018-09-18 11:35:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27768 states to 27768 states and 40893 transitions. [2018-09-18 11:35:34,838 INFO L78 Accepts]: Start accepts. Automaton has 27768 states and 40893 transitions. Word has length 336 [2018-09-18 11:35:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:34,839 INFO L480 AbstractCegarLoop]: Abstraction has 27768 states and 40893 transitions. [2018-09-18 11:35:34,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:35:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 27768 states and 40893 transitions. [2018-09-18 11:35:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-09-18 11:35:34,891 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:34,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:35:34,891 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:34,892 INFO L82 PathProgramCache]: Analyzing trace with hash -557652113, now seen corresponding path program 1 times [2018-09-18 11:35:34,892 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:34,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:34,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:34,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:34,893 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:35,647 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:35:35,648 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:35:35,648 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:35,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:35:35,649 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:35:35,649 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:35:35,649 INFO L87 Difference]: Start difference. First operand 27768 states and 40893 transitions. Second operand 5 states. [2018-09-18 11:35:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:35:49,736 INFO L93 Difference]: Finished difference Result 84186 states and 132563 transitions. [2018-09-18 11:35:49,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:35:49,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2018-09-18 11:35:49,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:35:50,039 INFO L225 Difference]: With dead ends: 84186 [2018-09-18 11:35:50,039 INFO L226 Difference]: Without dead ends: 56424 [2018-09-18 11:35:50,126 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:35:50,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56424 states. [2018-09-18 11:35:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56424 to 56228. [2018-09-18 11:35:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56228 states. [2018-09-18 11:35:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56228 states to 56228 states and 81827 transitions. [2018-09-18 11:35:51,876 INFO L78 Accepts]: Start accepts. Automaton has 56228 states and 81827 transitions. Word has length 337 [2018-09-18 11:35:51,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:35:51,879 INFO L480 AbstractCegarLoop]: Abstraction has 56228 states and 81827 transitions. [2018-09-18 11:35:51,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:35:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 56228 states and 81827 transitions. [2018-09-18 11:35:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-09-18 11:35:51,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:35:51,932 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:35:51,932 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:35:51,932 INFO L82 PathProgramCache]: Analyzing trace with hash -433868720, now seen corresponding path program 1 times [2018-09-18 11:35:51,933 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:35:51,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:51,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:51,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:35:51,934 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:35:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:52,356 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:35:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 116 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:35:53,311 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:35:53,312 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:35:53,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:35:53,331 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:35:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:35:53,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:35:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-09-18 11:35:53,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:35:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-09-18 11:35:53,907 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:35:53,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-09-18 11:35:53,908 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:35:53,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:35:53,908 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:35:53,908 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:35:53,909 INFO L87 Difference]: Start difference. First operand 56228 states and 81827 transitions. Second operand 3 states. [2018-09-18 11:36:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:01,821 INFO L93 Difference]: Finished difference Result 152723 states and 232938 transitions. [2018-09-18 11:36:01,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:36:01,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2018-09-18 11:36:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:02,195 INFO L225 Difference]: With dead ends: 152723 [2018-09-18 11:36:02,196 INFO L226 Difference]: Without dead ends: 96501 [2018-09-18 11:36:02,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 681 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:36:02,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96501 states. [2018-09-18 11:36:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96501 to 94163. [2018-09-18 11:36:03,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94163 states. [2018-09-18 11:36:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94163 states to 94163 states and 132382 transitions. [2018-09-18 11:36:04,232 INFO L78 Accepts]: Start accepts. Automaton has 94163 states and 132382 transitions. Word has length 340 [2018-09-18 11:36:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:36:04,233 INFO L480 AbstractCegarLoop]: Abstraction has 94163 states and 132382 transitions. [2018-09-18 11:36:04,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:36:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 94163 states and 132382 transitions. [2018-09-18 11:36:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-09-18 11:36:04,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:36:04,286 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:36:04,286 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:36:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 107032524, now seen corresponding path program 1 times [2018-09-18 11:36:04,287 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:36:04,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:04,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:04,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:04,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:36:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:05,335 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:36:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 122 proven. 134 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:36:05,429 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:36:05,429 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:36:05,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:05,438 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:36:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:05,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:36:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-09-18 11:36:05,871 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:36:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 122 proven. 134 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:36:06,163 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:36:06,164 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 11:36:06,164 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:36:06,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:36:06,165 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:36:06,165 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:36:06,165 INFO L87 Difference]: Start difference. First operand 94163 states and 132382 transitions. Second operand 5 states. [2018-09-18 11:36:19,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:19,784 INFO L93 Difference]: Finished difference Result 193106 states and 285190 transitions. [2018-09-18 11:36:19,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:36:19,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 370 [2018-09-18 11:36:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:20,319 INFO L225 Difference]: With dead ends: 193106 [2018-09-18 11:36:20,319 INFO L226 Difference]: Without dead ends: 98949 [2018-09-18 11:36:20,527 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 734 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:36:20,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98949 states. [2018-09-18 11:36:22,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98949 to 97788. [2018-09-18 11:36:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97788 states. [2018-09-18 11:36:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97788 states to 97788 states and 137040 transitions. [2018-09-18 11:36:22,557 INFO L78 Accepts]: Start accepts. Automaton has 97788 states and 137040 transitions. Word has length 370 [2018-09-18 11:36:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:36:22,558 INFO L480 AbstractCegarLoop]: Abstraction has 97788 states and 137040 transitions. [2018-09-18 11:36:22,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:36:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 97788 states and 137040 transitions. [2018-09-18 11:36:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-09-18 11:36:22,612 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:36:22,612 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:36:22,613 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:36:22,613 INFO L82 PathProgramCache]: Analyzing trace with hash 295274378, now seen corresponding path program 1 times [2018-09-18 11:36:22,613 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:36:22,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:22,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:22,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:36:22,614 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:36:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:23,352 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:36:23,353 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:36:23,353 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:36:23,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:23,367 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:36:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:23,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:36:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:36:24,597 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:36:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:36:24,815 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:36:24,816 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:36:24,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:36:24,834 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:36:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:36:25,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:36:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:36:25,854 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:36:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-18 11:36:26,241 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:36:26,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-18 11:36:26,242 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:36:26,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:36:26,244 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:36:26,244 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:36:26,244 INFO L87 Difference]: Start difference. First operand 97788 states and 137040 transitions. Second operand 9 states. [2018-09-18 11:36:56,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:36:56,528 INFO L93 Difference]: Finished difference Result 283164 states and 485103 transitions. [2018-09-18 11:36:56,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 11:36:56,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 430 [2018-09-18 11:36:56,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:36:57,257 INFO L225 Difference]: With dead ends: 283164 [2018-09-18 11:36:57,257 INFO L226 Difference]: Without dead ends: 152141 [2018-09-18 11:36:57,660 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1805 GetRequests, 1747 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=601, Invalid=2591, Unknown=0, NotChecked=0, Total=3192 [2018-09-18 11:36:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152141 states. [2018-09-18 11:37:01,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152141 to 147104. [2018-09-18 11:37:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147104 states. [2018-09-18 11:37:03,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147104 states to 147104 states and 210301 transitions. [2018-09-18 11:37:03,667 INFO L78 Accepts]: Start accepts. Automaton has 147104 states and 210301 transitions. Word has length 430 [2018-09-18 11:37:03,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:03,668 INFO L480 AbstractCegarLoop]: Abstraction has 147104 states and 210301 transitions. [2018-09-18 11:37:03,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:37:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 147104 states and 210301 transitions. [2018-09-18 11:37:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2018-09-18 11:37:03,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:37:03,774 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:37:03,776 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:37:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2067213551, now seen corresponding path program 1 times [2018-09-18 11:37:03,777 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:37:03,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:03,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:03,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:03,779 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:37:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:04,712 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-18 11:37:04,984 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:37:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 204 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:37:06,232 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:06,232 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:37:06,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:06,240 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:06,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-09-18 11:37:07,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-09-18 11:37:07,540 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:37:07,540 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 13 [2018-09-18 11:37:07,540 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:37:07,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:37:07,541 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:37:07,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:37:07,542 INFO L87 Difference]: Start difference. First operand 147104 states and 210301 transitions. Second operand 3 states. [2018-09-18 11:37:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:37:18,973 INFO L93 Difference]: Finished difference Result 319741 states and 482360 transitions. [2018-09-18 11:37:18,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:37:18,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 503 [2018-09-18 11:37:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:37:19,751 INFO L225 Difference]: With dead ends: 319741 [2018-09-18 11:37:19,751 INFO L226 Difference]: Without dead ends: 172643 [2018-09-18 11:37:20,062 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 1005 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:37:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172643 states. [2018-09-18 11:37:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172643 to 172620. [2018-09-18 11:37:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172620 states. [2018-09-18 11:37:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172620 states to 172620 states and 253688 transitions. [2018-09-18 11:37:24,584 INFO L78 Accepts]: Start accepts. Automaton has 172620 states and 253688 transitions. Word has length 503 [2018-09-18 11:37:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:24,585 INFO L480 AbstractCegarLoop]: Abstraction has 172620 states and 253688 transitions. [2018-09-18 11:37:24,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:37:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 172620 states and 253688 transitions. [2018-09-18 11:37:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2018-09-18 11:37:24,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:37:24,884 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2018-09-18 11:37:24,884 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:37:24,885 INFO L82 PathProgramCache]: Analyzing trace with hash 714255647, now seen corresponding path program 1 times [2018-09-18 11:37:24,885 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:37:24,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:24,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:24,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:24,886 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:37:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:25,314 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:37:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 122 proven. 194 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:37:25,759 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:25,760 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:37:25,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:25,769 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:25,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:26,839 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-09-18 11:37:26,839 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 122 proven. 194 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:37:27,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:37:27,336 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 11:37:27,336 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:37:27,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:37:27,338 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:37:27,338 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:37:27,338 INFO L87 Difference]: Start difference. First operand 172620 states and 253688 transitions. Second operand 5 states. [2018-09-18 11:37:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:37:36,011 INFO L93 Difference]: Finished difference Result 343506 states and 507422 transitions. [2018-09-18 11:37:36,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:37:36,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 736 [2018-09-18 11:37:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:37:37,697 INFO L225 Difference]: With dead ends: 343506 [2018-09-18 11:37:37,698 INFO L226 Difference]: Without dead ends: 171660 [2018-09-18 11:37:38,012 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1481 GetRequests, 1466 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:37:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171660 states. [2018-09-18 11:37:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171660 to 166187. [2018-09-18 11:37:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166187 states. [2018-09-18 11:37:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166187 states to 166187 states and 219300 transitions. [2018-09-18 11:37:41,664 INFO L78 Accepts]: Start accepts. Automaton has 166187 states and 219300 transitions. Word has length 736 [2018-09-18 11:37:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:41,665 INFO L480 AbstractCegarLoop]: Abstraction has 166187 states and 219300 transitions. [2018-09-18 11:37:41,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:37:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 166187 states and 219300 transitions. [2018-09-18 11:37:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2018-09-18 11:37:42,039 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:37:42,040 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:37:42,040 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:37:42,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1981566389, now seen corresponding path program 1 times [2018-09-18 11:37:42,041 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:37:42,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:42,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:42,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:37:42,042 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:37:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:43,233 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-18 11:37:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 476 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:37:46,319 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:37:46,319 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 11:37:46,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:37:46,327 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:37:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:37:46,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:37:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-18 11:37:47,052 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:37:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-18 11:37:47,523 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:37:47,524 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [23] total 24 [2018-09-18 11:37:47,524 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:37:47,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:37:47,526 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:37:47,526 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:37:47,526 INFO L87 Difference]: Start difference. First operand 166187 states and 219300 transitions. Second operand 3 states. [2018-09-18 11:37:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:37:54,781 INFO L93 Difference]: Finished difference Result 347698 states and 465128 transitions. [2018-09-18 11:37:54,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:37:54,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 884 [2018-09-18 11:37:54,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:37:54,787 INFO L225 Difference]: With dead ends: 347698 [2018-09-18 11:37:54,787 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:37:55,283 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1795 GetRequests, 1769 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:37:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:37:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:37:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:37:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:37:55,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 884 [2018-09-18 11:37:55,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:37:55,286 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:37:55,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:37:55,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:37:55,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:37:55,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:37:59,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:37:59,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:00,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:01,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:02,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:02,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:02,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:02,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:38:02,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-09-18 11:38:02,090 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-18 11:38:02,092 INFO L168 Benchmark]: Toolchain (without parser) took 212227.62 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -863.2 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,093 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 11:38:02,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2201.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 263.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,095 INFO L168 Benchmark]: Boogie Preprocessor took 893.90 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,096 INFO L168 Benchmark]: RCFGBuilder took 11654.16 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 658.1 MB). Peak memory consumption was 658.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,097 INFO L168 Benchmark]: TraceAbstraction took 197204.31 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -625.8 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-18 11:38:02,108 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 2201.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 263.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 893.90 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11654.16 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 658.1 MB). Peak memory consumption was 658.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197204.31 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -625.8 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 195]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1346. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label46_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-38-02-132.csv Completed graceful shutdown