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_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:26:57,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:26:57,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:26:57,848 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:26:57,848 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:26:57,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:26:57,851 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:26:57,854 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:26:57,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:26:57,858 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:26:57,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:26:57,861 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:26:57,862 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:26:57,863 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:26:57,864 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:26:57,867 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:26:57,868 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:26:57,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:26:57,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:26:57,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:26:57,890 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:26:57,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:26:57,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:26:57,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:26:57,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:26:57,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:26:57,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:26:57,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:26:57,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:26:57,904 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:26:57,904 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:26:57,906 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:26:57,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:26:57,906 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:26:57,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:26:57,908 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:26:57,908 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:26:57,940 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:26:57,941 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:26:57,942 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:26:57,942 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:26:57,943 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:26:57,943 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:26:57,943 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:26:57,943 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:26:57,944 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:26:57,944 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:26:57,944 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:26:57,945 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:26:57,947 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:26:57,947 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:26:57,947 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:26:57,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:26:57,948 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:26:57,948 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:26:57,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:26:57,950 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:26:57,950 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:26:57,950 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:26:57,951 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:26:57,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:26:57,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:26:57,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:26:57,952 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:26:57,952 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:26:57,952 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:26:57,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:26:57,952 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:26:57,953 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:26:57,953 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:26:58,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:26:58,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:26:58,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:26:58,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:26:58,035 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:26:58,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label58_true-unreach-call.c [2018-09-14 17:26:58,393 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad6aa7cb/1aab2ce5967d42a1b3b9d6f1cb31b961/FLAGc673dcd55 [2018-09-14 17:26:58,851 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:26:58,852 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label58_true-unreach-call.c [2018-09-14 17:26:58,883 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad6aa7cb/1aab2ce5967d42a1b3b9d6f1cb31b961/FLAGc673dcd55 [2018-09-14 17:26:58,900 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad6aa7cb/1aab2ce5967d42a1b3b9d6f1cb31b961 [2018-09-14 17:26:58,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:26:58,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:26:58,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:26:58,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:26:58,929 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:26:58,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:26:58" (1/1) ... [2018-09-14 17:26:58,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a2763a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:26:58, skipping insertion in model container [2018-09-14 17:26:58,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:26:58" (1/1) ... [2018-09-14 17:26:58,948 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:27:00,444 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:27:00,465 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:27:01,029 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:27:01,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01 WrapperNode [2018-09-14 17:27:01,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:27:01,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:27:01,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:27:01,259 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:27:01,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:01,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:01,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:27:01,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:27:01,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:27:01,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:27:02,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... [2018-09-14 17:27:02,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:27:02,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:27:02,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:27:02,494 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:27:02,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:27:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:27:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:27:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:27:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:27:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:27:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:27:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:27:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:27:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:27:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:27:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:27:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:27:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:27:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:27:14,167 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:27:14,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:27:14 BoogieIcfgContainer [2018-09-14 17:27:14,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:27:14,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:27:14,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:27:14,171 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:27:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:26:58" (1/3) ... [2018-09-14 17:27:14,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49257913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:27:14, skipping insertion in model container [2018-09-14 17:27:14,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:27:01" (2/3) ... [2018-09-14 17:27:14,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49257913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:27:14, skipping insertion in model container [2018-09-14 17:27:14,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:27:14" (3/3) ... [2018-09-14 17:27:14,176 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label58_true-unreach-call.c [2018-09-14 17:27:14,186 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:27:14,196 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:27:14,283 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:27:14,284 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:27:14,284 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:27:14,284 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:27:14,284 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:27:14,284 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:27:14,285 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:27:14,285 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:27:14,285 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:27:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-14 17:27:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-14 17:27:14,343 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:14,344 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] [2018-09-14 17:27:14,345 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1911661987, now seen corresponding path program 1 times [2018-09-14 17:27:14,351 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:14,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:14,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:14,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:14,405 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:27:14,823 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:27:14,824 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:27:14,824 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:14,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:27:14,850 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:27:14,851 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:27:14,854 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-09-14 17:27:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:29,008 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-09-14 17:27:29,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:27:29,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-09-14 17:27:29,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:29,051 INFO L225 Difference]: With dead ends: 3234 [2018-09-14 17:27:29,051 INFO L226 Difference]: Without dead ends: 2388 [2018-09-14 17:27:29,062 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 [2018-09-14 17:27:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-14 17:27:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-09-14 17:27:29,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-09-14 17:27:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-09-14 17:27:29,282 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 41 [2018-09-14 17:27:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:27:29,283 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-09-14 17:27:29,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:27:29,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-09-14 17:27:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-14 17:27:29,297 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:29,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:27:29,301 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash -352673232, now seen corresponding path program 1 times [2018-09-14 17:27:29,302 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:29,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:29,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:29,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:29,305 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:27:29,703 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:27:29,704 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:27:29,704 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:29,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:27:29,706 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:27:29,706 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:27:29,707 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-09-14 17:27:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:44,699 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-09-14 17:27:44,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:27:44,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-09-14 17:27:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:44,753 INFO L225 Difference]: With dead ends: 9453 [2018-09-14 17:27:44,753 INFO L226 Difference]: Without dead ends: 7071 [2018-09-14 17:27:44,767 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 [2018-09-14 17:27:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-09-14 17:27:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-09-14 17:27:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-09-14 17:27:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-09-14 17:27:44,990 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 141 [2018-09-14 17:27:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:27:44,991 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-09-14 17:27:44,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:27:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-09-14 17:27:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-09-14 17:27:45,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:45,004 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:27:45,004 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:45,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1301747278, now seen corresponding path program 1 times [2018-09-14 17:27:45,008 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:45,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:45,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:45,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:45,010 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 68 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:45,511 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:27:45,511 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:27:45,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:45,527 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:27:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:45,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:27:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-14 17:27:45,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:27:46,176 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 17:27:46,301 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 68 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:46,323 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:27:46,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-14 17:27:46,323 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:46,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:27:46,325 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:27:46,325 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:27:46,325 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 5 states. [2018-09-14 17:27:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:27:58,454 INFO L93 Difference]: Finished difference Result 18174 states and 27862 transitions. [2018-09-14 17:27:58,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:27:58,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-09-14 17:27:58,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:27:58,512 INFO L225 Difference]: With dead ends: 18174 [2018-09-14 17:27:58,513 INFO L226 Difference]: Without dead ends: 11157 [2018-09-14 17:27:58,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 384 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:27:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11157 states. [2018-09-14 17:27:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11157 to 11102. [2018-09-14 17:27:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11102 states. [2018-09-14 17:27:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11102 states to 11102 states and 16253 transitions. [2018-09-14 17:27:58,839 INFO L78 Accepts]: Start accepts. Automaton has 11102 states and 16253 transitions. Word has length 194 [2018-09-14 17:27:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:27:58,840 INFO L480 AbstractCegarLoop]: Abstraction has 11102 states and 16253 transitions. [2018-09-14 17:27:58,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:27:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 11102 states and 16253 transitions. [2018-09-14 17:27:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-14 17:27:58,846 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:27:58,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:27:58,847 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:27:58,847 INFO L82 PathProgramCache]: Analyzing trace with hash -754688959, now seen corresponding path program 1 times [2018-09-14 17:27:58,847 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:27:58,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:58,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:58,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:27:58,852 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:27:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 68 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:59,127 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:27:59,127 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:27:59,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:27:59,136 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:27:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:27:59,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:27:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-14 17:27:59,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:27:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 68 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:27:59,512 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:27:59,513 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-14 17:27:59,513 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:27:59,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:27:59,514 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:27:59,514 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:27:59,514 INFO L87 Difference]: Start difference. First operand 11102 states and 16253 transitions. Second operand 5 states. [2018-09-14 17:28:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:08,377 INFO L93 Difference]: Finished difference Result 33706 states and 51864 transitions. [2018-09-14 17:28:08,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:28:08,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2018-09-14 17:28:08,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:08,476 INFO L225 Difference]: With dead ends: 33706 [2018-09-14 17:28:08,476 INFO L226 Difference]: Without dead ends: 22610 [2018-09-14 17:28:08,514 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:28:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22610 states. [2018-09-14 17:28:09,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22610 to 22444. [2018-09-14 17:28:09,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22444 states. [2018-09-14 17:28:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22444 states to 22444 states and 32102 transitions. [2018-09-14 17:28:09,124 INFO L78 Accepts]: Start accepts. Automaton has 22444 states and 32102 transitions. Word has length 195 [2018-09-14 17:28:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:09,125 INFO L480 AbstractCegarLoop]: Abstraction has 22444 states and 32102 transitions. [2018-09-14 17:28:09,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:28:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 22444 states and 32102 transitions. [2018-09-14 17:28:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-09-14 17:28:09,131 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:09,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:28:09,132 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:09,132 INFO L82 PathProgramCache]: Analyzing trace with hash -782360899, now seen corresponding path program 1 times [2018-09-14 17:28:09,132 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:09,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:09,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:09,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:09,134 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:09,461 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:28:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:28:09,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:28:09,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:28:09,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:28:09,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:28:09,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:28:09,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:28:09,874 INFO L87 Difference]: Start difference. First operand 22444 states and 32102 transitions. Second operand 6 states. [2018-09-14 17:28:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:19,636 INFO L93 Difference]: Finished difference Result 58927 states and 91407 transitions. [2018-09-14 17:28:19,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:28:19,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-09-14 17:28:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:19,806 INFO L225 Difference]: With dead ends: 58927 [2018-09-14 17:28:19,806 INFO L226 Difference]: Without dead ends: 36489 [2018-09-14 17:28:19,876 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:28:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36489 states. [2018-09-14 17:28:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36489 to 36317. [2018-09-14 17:28:20,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36317 states. [2018-09-14 17:28:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36317 states to 36317 states and 53911 transitions. [2018-09-14 17:28:20,743 INFO L78 Accepts]: Start accepts. Automaton has 36317 states and 53911 transitions. Word has length 204 [2018-09-14 17:28:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:20,743 INFO L480 AbstractCegarLoop]: Abstraction has 36317 states and 53911 transitions. [2018-09-14 17:28:20,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:28:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 36317 states and 53911 transitions. [2018-09-14 17:28:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-09-14 17:28:20,759 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:20,760 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:28:20,760 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:20,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1192512198, now seen corresponding path program 1 times [2018-09-14 17:28:20,761 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:20,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:20,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:20,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:20,762 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:28:21,402 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:28:21,402 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:28:21,403 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:28:21,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:28:21,404 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:28:21,404 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:28:21,404 INFO L87 Difference]: Start difference. First operand 36317 states and 53911 transitions. Second operand 4 states. [2018-09-14 17:28:30,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:30,182 INFO L93 Difference]: Finished difference Result 106305 states and 162695 transitions. [2018-09-14 17:28:30,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:28:30,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 264 [2018-09-14 17:28:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:30,391 INFO L225 Difference]: With dead ends: 106305 [2018-09-14 17:28:30,391 INFO L226 Difference]: Without dead ends: 58933 [2018-09-14 17:28:30,530 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:28:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58933 states. [2018-09-14 17:28:31,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58933 to 58914. [2018-09-14 17:28:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58914 states. [2018-09-14 17:28:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58914 states to 58914 states and 79308 transitions. [2018-09-14 17:28:32,060 INFO L78 Accepts]: Start accepts. Automaton has 58914 states and 79308 transitions. Word has length 264 [2018-09-14 17:28:32,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:32,062 INFO L480 AbstractCegarLoop]: Abstraction has 58914 states and 79308 transitions. [2018-09-14 17:28:32,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:28:32,062 INFO L276 IsEmpty]: Start isEmpty. Operand 58914 states and 79308 transitions. [2018-09-14 17:28:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-09-14 17:28:32,120 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:32,120 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:28:32,121 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1329656725, now seen corresponding path program 1 times [2018-09-14 17:28:32,121 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:32,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:32,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:32,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:32,122 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:32,479 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:28:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 68 proven. 148 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:28:32,947 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:32,947 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:28:32,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:32,956 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:33,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-14 17:28:33,216 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 68 proven. 148 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:28:33,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:28:33,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:28:33,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:28:33,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:28:33,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:28:33,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:28:33,780 INFO L87 Difference]: Start difference. First operand 58914 states and 79308 transitions. Second operand 5 states. [2018-09-14 17:28:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:45,308 INFO L93 Difference]: Finished difference Result 173407 states and 251255 transitions. [2018-09-14 17:28:45,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:28:45,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 383 [2018-09-14 17:28:45,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:45,718 INFO L225 Difference]: With dead ends: 173407 [2018-09-14 17:28:45,718 INFO L226 Difference]: Without dead ends: 114499 [2018-09-14 17:28:45,868 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 760 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:28:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114499 states. [2018-09-14 17:28:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114499 to 114149. [2018-09-14 17:28:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114149 states. [2018-09-14 17:28:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114149 states to 114149 states and 158610 transitions. [2018-09-14 17:28:48,674 INFO L78 Accepts]: Start accepts. Automaton has 114149 states and 158610 transitions. Word has length 383 [2018-09-14 17:28:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:28:48,676 INFO L480 AbstractCegarLoop]: Abstraction has 114149 states and 158610 transitions. [2018-09-14 17:28:48,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:28:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 114149 states and 158610 transitions. [2018-09-14 17:28:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2018-09-14 17:28:48,801 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:28:48,802 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:28:48,802 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:28:48,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1254062657, now seen corresponding path program 1 times [2018-09-14 17:28:48,803 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:28:48,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:48,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:48,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:28:48,804 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:28:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 68 proven. 194 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:28:49,340 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:28:49,340 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:28:49,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:28:49,349 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:28:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:28:49,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:28:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-14 17:28:49,757 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:28:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 68 proven. 194 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:28:50,721 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:28:50,721 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 17:28:50,721 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:28:50,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:28:50,722 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:28:50,722 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-14 17:28:50,723 INFO L87 Difference]: Start difference. First operand 114149 states and 158610 transitions. Second operand 5 states. [2018-09-14 17:28:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:28:58,078 INFO L93 Difference]: Finished difference Result 228236 states and 318879 transitions. [2018-09-14 17:28:58,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:28:58,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 469 [2018-09-14 17:28:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:28:58,398 INFO L225 Difference]: With dead ends: 228236 [2018-09-14 17:28:58,398 INFO L226 Difference]: Without dead ends: 114093 [2018-09-14 17:28:58,574 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 932 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:28:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114093 states. [2018-09-14 17:29:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114093 to 113971. [2018-09-14 17:29:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113971 states. [2018-09-14 17:29:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113971 states to 113971 states and 148951 transitions. [2018-09-14 17:29:00,967 INFO L78 Accepts]: Start accepts. Automaton has 113971 states and 148951 transitions. Word has length 469 [2018-09-14 17:29:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:29:00,968 INFO L480 AbstractCegarLoop]: Abstraction has 113971 states and 148951 transitions. [2018-09-14 17:29:00,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:29:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 113971 states and 148951 transitions. [2018-09-14 17:29:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2018-09-14 17:29:01,064 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:29:01,064 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:29:01,065 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:29:01,065 INFO L82 PathProgramCache]: Analyzing trace with hash 817836376, now seen corresponding path program 1 times [2018-09-14 17:29:01,065 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:29:01,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:01,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:01,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:01,066 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:29:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 235 proven. 178 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2018-09-14 17:29:01,494 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:01,494 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:29:01,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:01,502 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:01,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 590 proven. 2 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2018-09-14 17:29:02,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 235 proven. 178 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2018-09-14 17:29:04,049 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:04,050 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:29:04,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:04,066 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:04,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 590 proven. 2 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2018-09-14 17:29:04,635 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 235 proven. 178 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2018-09-14 17:29:05,085 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:29:05,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:29:05,086 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:29:05,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:29:05,088 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:29:05,088 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:29:05,089 INFO L87 Difference]: Start difference. First operand 113971 states and 148951 transitions. Second operand 9 states. [2018-09-14 17:29:22,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:29:22,655 INFO L93 Difference]: Finished difference Result 282200 states and 408517 transitions. [2018-09-14 17:29:22,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:29:22,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 614 [2018-09-14 17:29:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:29:23,385 INFO L225 Difference]: With dead ends: 282200 [2018-09-14 17:29:23,385 INFO L226 Difference]: Without dead ends: 168235 [2018-09-14 17:29:24,714 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2472 GetRequests, 2451 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:29:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168235 states. [2018-09-14 17:29:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168235 to 167693. [2018-09-14 17:29:26,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167693 states. [2018-09-14 17:29:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167693 states to 167693 states and 228710 transitions. [2018-09-14 17:29:28,668 INFO L78 Accepts]: Start accepts. Automaton has 167693 states and 228710 transitions. Word has length 614 [2018-09-14 17:29:28,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:29:28,669 INFO L480 AbstractCegarLoop]: Abstraction has 167693 states and 228710 transitions. [2018-09-14 17:29:28,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:29:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 167693 states and 228710 transitions. [2018-09-14 17:29:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2018-09-14 17:29:28,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:29:28,825 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:29:28,825 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:29:28,825 INFO L82 PathProgramCache]: Analyzing trace with hash -279673328, now seen corresponding path program 1 times [2018-09-14 17:29:28,826 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:29:28,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:28,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:28,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:29:28,827 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:29:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 340 proven. 285 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-14 17:29:30,028 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:30,028 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:29:34,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:34,668 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:34,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 648 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-14 17:29:35,081 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 345 proven. 106 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2018-09-14 17:29:35,474 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:29:35,474 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:29:35,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:29:35,491 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:29:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:29:35,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:29:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 648 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-14 17:29:36,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:29:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 345 proven. 106 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2018-09-14 17:29:36,425 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:29:36,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 19 [2018-09-14 17:29:36,426 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:29:36,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-14 17:29:36,427 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-14 17:29:36,427 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-09-14 17:29:36,427 INFO L87 Difference]: Start difference. First operand 167693 states and 228710 transitions. Second operand 16 states. [2018-09-14 17:29:43,392 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-09-14 17:29:45,994 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-09-14 17:29:48,156 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-09-14 17:29:50,441 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-09-14 17:29:52,679 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-09-14 17:29:58,918 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2018-09-14 17:30:00,146 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2018-09-14 17:30:09,082 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 9 [2018-09-14 17:30:29,148 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-09-14 17:30:29,999 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-09-14 17:30:37,244 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2018-09-14 17:30:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:30:43,631 INFO L93 Difference]: Finished difference Result 466686 states and 800263 transitions. [2018-09-14 17:30:43,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-09-14 17:30:43,631 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 618 [2018-09-14 17:30:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-09-14 17:30:45,983 INFO L225 Difference]: With dead ends: 466686 [2018-09-14 17:30:45,983 INFO L226 Difference]: Without dead ends: 298235 [2018-09-14 17:30:46,697 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2705 GetRequests, 2564 SyntacticMatches, 5 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7428 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2542, Invalid=16364, Unknown=0, NotChecked=0, Total=18906 [2018-09-14 17:30:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298235 states. [2018-09-14 17:30:46,861 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:30:46,865 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:30:46,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:30:46 BoogieIcfgContainer [2018-09-14 17:30:46,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:30:46,866 INFO L168 Benchmark]: Toolchain (without parser) took 227952.43 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -858.2 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-14 17:30:46,867 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:30:46,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2340.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:30:46,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 299.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:30:46,869 INFO L168 Benchmark]: Boogie Preprocessor took 934.52 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.7 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. [2018-09-14 17:30:46,870 INFO L168 Benchmark]: RCFGBuilder took 11673.82 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: 663.4 MB). Peak memory consumption was 663.4 MB. Max. memory is 7.1 GB. [2018-09-14 17:30:46,871 INFO L168 Benchmark]: TraceAbstraction took 212696.93 ms. Allocated memory was 2.4 GB in the beginning and 4.5 GB in the end (delta: 2.1 GB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -632.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-14 17:30:46,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2340.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 299.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 934.52 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 900.7 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 11673.82 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: 663.4 MB). Peak memory consumption was 663.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212696.93 ms. Allocated memory was 2.4 GB in the beginning and 4.5 GB in the end (delta: 2.1 GB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -632.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 212.5s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 179.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2920 SDtfs, 70060 SDslu, 3031 SDs, 0 SdLazy, 87266 SolverSat, 25687 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 128.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7720 GetRequests, 7489 SyntacticMatches, 20 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7593 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167693occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 1474 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 6828 NumberOfCodeBlocks, 6828 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 10507 ConstructedInterpolants, 0 QuantifiedInterpolants, 13114903 SizeOfPredicates, 7 NumberOfNonLiveVariables, 5777 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 8235/10230 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label58_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-30-46-889.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label58_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-30-46-889.csv Completed graceful shutdown