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/Problem15_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:42:17,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:42:17,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:42:17,114 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:42:17,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:42:17,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:42:17,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:42:17,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:42:17,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:42:17,121 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:42:17,122 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:42:17,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:42:17,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:42:17,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:42:17,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:42:17,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:42:17,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:42:17,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:42:17,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:42:17,134 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:42:17,135 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:42:17,136 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:42:17,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:42:17,145 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:42:17,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:42:17,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:42:17,151 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:42:17,152 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:42:17,154 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:42:17,155 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:42:17,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:42:17,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:42:17,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:42:17,161 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:42:17,162 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:42:17,163 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:42:17,163 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 17:42:17,196 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:42:17,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:42:17,198 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:42:17,198 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:42:17,198 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:42:17,198 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:42:17,199 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:42:17,199 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:42:17,199 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:42:17,199 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:42:17,200 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:42:17,200 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:42:17,201 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:42:17,201 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:42:17,201 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:42:17,202 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:42:17,202 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:42:17,202 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:42:17,202 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:42:17,203 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:42:17,203 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:42:17,203 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:42:17,203 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:42:17,205 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:42:17,205 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:42:17,205 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:42:17,206 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:42:17,206 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:42:17,206 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:42:17,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:42:17,207 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:42:17,207 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:42:17,207 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:42:17,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:42:17,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:42:17,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:42:17,284 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:42:17,284 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:42:17,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label01_true-unreach-call.c [2018-09-14 17:42:17,628 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d881c85/b5884de256b847c186381ad1c0bf3762/FLAG013f7dd94 [2018-09-14 17:42:18,005 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:42:18,007 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label01_true-unreach-call.c [2018-09-14 17:42:18,029 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d881c85/b5884de256b847c186381ad1c0bf3762/FLAG013f7dd94 [2018-09-14 17:42:18,049 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d881c85/b5884de256b847c186381ad1c0bf3762 [2018-09-14 17:42:18,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:42:18,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:42:18,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:42:18,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:42:18,072 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:42:18,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:42:18" (1/1) ... [2018-09-14 17:42:18,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c1f22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:18, skipping insertion in model container [2018-09-14 17:42:18,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:42:18" (1/1) ... [2018-09-14 17:42:18,089 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:42:18,879 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:42:18,899 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:42:19,175 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:42:19,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19 WrapperNode [2018-09-14 17:42:19,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:42:19,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:42:19,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:42:19,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:42:19,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:19,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:19,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:42:19,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:42:19,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:42:19,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:42:19,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:19,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (1/1) ... [2018-09-14 17:42:20,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:42:20,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:42:20,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:42:20,203 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:42:20,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (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 17:42:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:42:20,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:42:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:42:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:42:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:42:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:42:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:42:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:42:20,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:42:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:42:26,980 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:42:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:42:26 BoogieIcfgContainer [2018-09-14 17:42:26,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:42:26,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:42:26,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:42:26,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:42:26,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:42:18" (1/3) ... [2018-09-14 17:42:26,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4844d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:42:26, skipping insertion in model container [2018-09-14 17:42:26,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:42:19" (2/3) ... [2018-09-14 17:42:26,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4844d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:42:26, skipping insertion in model container [2018-09-14 17:42:26,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:42:26" (3/3) ... [2018-09-14 17:42:26,989 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label01_true-unreach-call.c [2018-09-14 17:42:26,999 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:42:27,008 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:42:27,070 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:42:27,071 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:42:27,071 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:42:27,071 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:42:27,071 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:42:27,072 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:42:27,072 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:42:27,072 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:42:27,072 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:42:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-14 17:42:27,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-14 17:42:27,125 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:42:27,126 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] [2018-09-14 17:42:27,128 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:42:27,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1009438167, now seen corresponding path program 1 times [2018-09-14 17:42:27,136 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:42:27,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:27,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:27,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:27,195 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:42:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:27,693 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 17:42:27,695 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:42:27,696 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:42:27,696 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:42:27,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:42:27,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:42:27,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:42:27,723 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-14 17:42:37,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:42:37,699 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-09-14 17:42:37,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:42:37,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-09-14 17:42:37,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:42:37,741 INFO L225 Difference]: With dead ends: 1550 [2018-09-14 17:42:37,742 INFO L226 Difference]: Without dead ends: 1106 [2018-09-14 17:42:37,757 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 17:42:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-09-14 17:42:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-09-14 17:42:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-14 17:42:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-09-14 17:42:37,901 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 51 [2018-09-14 17:42:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:42:37,901 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-09-14 17:42:37,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:42:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-09-14 17:42:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-14 17:42:37,914 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:42:37,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:42:37,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:42:37,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1206177332, now seen corresponding path program 1 times [2018-09-14 17:42:37,916 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:42:37,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:37,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:37,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:37,920 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:42:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:42:38,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:42:38,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:42:38,254 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:42:38,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:42:38,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:42:38,257 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:42:38,257 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-09-14 17:42:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:42:46,669 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-09-14 17:42:46,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:42:46,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-09-14 17:42:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:42:46,691 INFO L225 Difference]: With dead ends: 2245 [2018-09-14 17:42:46,691 INFO L226 Difference]: Without dead ends: 1489 [2018-09-14 17:42:46,695 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:42:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-09-14 17:42:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-09-14 17:42:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-09-14 17:42:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-09-14 17:42:46,775 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 124 [2018-09-14 17:42:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:42:46,775 INFO L480 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-09-14 17:42:46,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:42:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-09-14 17:42:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-14 17:42:46,784 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:42:46,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:42:46,784 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:42:46,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1698433604, now seen corresponding path program 1 times [2018-09-14 17:42:46,785 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:42:46,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:46,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:46,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:46,786 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:42:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:42:47,060 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:42:47,060 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:42:47,060 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:42:47,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:42:47,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:42:47,061 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:42:47,062 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-09-14 17:42:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:42:53,611 INFO L93 Difference]: Finished difference Result 5392 states and 8275 transitions. [2018-09-14 17:42:53,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:42:53,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-09-14 17:42:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:42:53,638 INFO L225 Difference]: With dead ends: 5392 [2018-09-14 17:42:53,638 INFO L226 Difference]: Without dead ends: 3941 [2018-09-14 17:42:53,651 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 17:42:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2018-09-14 17:42:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3939. [2018-09-14 17:42:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2018-09-14 17:42:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 5427 transitions. [2018-09-14 17:42:53,776 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 5427 transitions. Word has length 132 [2018-09-14 17:42:53,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:42:53,779 INFO L480 AbstractCegarLoop]: Abstraction has 3939 states and 5427 transitions. [2018-09-14 17:42:53,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:42:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 5427 transitions. [2018-09-14 17:42:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-14 17:42:53,788 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:42:53,789 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, 2, 2, 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] [2018-09-14 17:42:53,789 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:42:53,789 INFO L82 PathProgramCache]: Analyzing trace with hash 782695778, now seen corresponding path program 1 times [2018-09-14 17:42:53,790 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:42:53,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:53,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:53,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:42:53,792 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:42:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:54,135 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:42:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 88 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:42:54,263 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:42:54,263 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 17:42:54,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:42:54,280 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:42:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:42:54,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:42:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:42:54,718 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:42:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 88 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:42:55,204 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:42:55,205 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:42:55,205 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:42:55,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:42:55,206 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:42:55,206 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:42:55,207 INFO L87 Difference]: Start difference. First operand 3939 states and 5427 transitions. Second operand 5 states. [2018-09-14 17:43:04,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:43:04,304 INFO L93 Difference]: Finished difference Result 10280 states and 14040 transitions. [2018-09-14 17:43:04,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:43:04,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-09-14 17:43:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:43:04,335 INFO L225 Difference]: With dead ends: 10280 [2018-09-14 17:43:04,335 INFO L226 Difference]: Without dead ends: 6347 [2018-09-14 17:43:04,361 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 411 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:43:04,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2018-09-14 17:43:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 6291. [2018-09-14 17:43:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6291 states. [2018-09-14 17:43:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6291 states to 6291 states and 7957 transitions. [2018-09-14 17:43:04,534 INFO L78 Accepts]: Start accepts. Automaton has 6291 states and 7957 transitions. Word has length 208 [2018-09-14 17:43:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:43:04,534 INFO L480 AbstractCegarLoop]: Abstraction has 6291 states and 7957 transitions. [2018-09-14 17:43:04,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:43:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6291 states and 7957 transitions. [2018-09-14 17:43:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-09-14 17:43:04,543 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:43:04,544 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:43:04,544 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:43:04,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1314998265, now seen corresponding path program 1 times [2018-09-14 17:43:04,545 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:43:04,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:43:04,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:43:04,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:43:04,546 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:43:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:43:05,381 WARN L178 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-09-14 17:43:05,728 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-14 17:43:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 88 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:43:06,145 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:43:06,145 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 17:43:06,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:43:06,161 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:43:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:43:06,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:43:06,686 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-14 17:43:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:43:06,799 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:43:06,932 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-14 17:43:07,140 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-09-14 17:43:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 88 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:43:07,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:43:07,981 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:43:07,981 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:43:07,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:43:07,983 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:43:07,984 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:43:07,984 INFO L87 Difference]: Start difference. First operand 6291 states and 7957 transitions. Second operand 5 states. [2018-09-14 17:43:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:43:20,710 INFO L93 Difference]: Finished difference Result 16355 states and 20980 transitions. [2018-09-14 17:43:20,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:43:20,712 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2018-09-14 17:43:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:43:20,751 INFO L225 Difference]: With dead ends: 16355 [2018-09-14 17:43:20,751 INFO L226 Difference]: Without dead ends: 10070 [2018-09-14 17:43:20,776 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 638 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:43:20,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10070 states. [2018-09-14 17:43:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10070 to 9720. [2018-09-14 17:43:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9720 states. [2018-09-14 17:43:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9720 states to 9720 states and 12409 transitions. [2018-09-14 17:43:20,984 INFO L78 Accepts]: Start accepts. Automaton has 9720 states and 12409 transitions. Word has length 322 [2018-09-14 17:43:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:43:20,985 INFO L480 AbstractCegarLoop]: Abstraction has 9720 states and 12409 transitions. [2018-09-14 17:43:20,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:43:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 9720 states and 12409 transitions. [2018-09-14 17:43:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-09-14 17:43:20,997 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:43:20,998 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, 2, 2, 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] [2018-09-14 17:43:20,999 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:43:20,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1359324968, now seen corresponding path program 1 times [2018-09-14 17:43:20,999 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:43:21,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:43:21,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:43:21,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:43:21,000 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:43:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:43:21,895 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2018-09-14 17:43:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-09-14 17:43:22,189 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:43:22,189 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 17:43:22,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:43:22,197 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:43:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:43:22,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:43:22,575 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-09-14 17:43:22,906 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2018-09-14 17:43:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-09-14 17:43:23,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:43:23,610 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2018-09-14 17:43:25,884 WARN L178 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 143 DAG size of output: 40 [2018-09-14 17:43:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 93 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:43:27,684 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:43:27,684 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:43:27,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:43:27,710 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:43:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:43:27,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:43:28,433 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-09-14 17:43:28,826 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 23 [2018-09-14 17:43:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-09-14 17:43:29,114 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:43:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 93 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:43:31,234 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:43:31,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 9, 9] total 19 [2018-09-14 17:43:31,235 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:43:31,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-14 17:43:31,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-14 17:43:31,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-09-14 17:43:31,236 INFO L87 Difference]: Start difference. First operand 9720 states and 12409 transitions. Second operand 11 states. [2018-09-14 17:43:34,533 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2018-09-14 17:43:37,307 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-09-14 17:43:41,125 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-09-14 17:43:42,577 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2018-09-14 17:44:19,251 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-09-14 17:45:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:45:38,689 INFO L93 Difference]: Finished difference Result 34527 states and 45562 transitions. [2018-09-14 17:45:38,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-14 17:45:38,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 408 [2018-09-14 17:45:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:45:38,799 INFO L225 Difference]: With dead ends: 34527 [2018-09-14 17:45:38,799 INFO L226 Difference]: Without dead ends: 25124 [2018-09-14 17:45:38,839 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1614 SyntacticMatches, 11 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2018-09-14 17:45:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25124 states. [2018-09-14 17:45:39,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25124 to 23783. [2018-09-14 17:45:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23783 states. [2018-09-14 17:45:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23783 states to 23783 states and 29922 transitions. [2018-09-14 17:45:39,386 INFO L78 Accepts]: Start accepts. Automaton has 23783 states and 29922 transitions. Word has length 408 [2018-09-14 17:45:39,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:45:39,387 INFO L480 AbstractCegarLoop]: Abstraction has 23783 states and 29922 transitions. [2018-09-14 17:45:39,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-14 17:45:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 23783 states and 29922 transitions. [2018-09-14 17:45:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2018-09-14 17:45:39,408 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:45:39,408 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:45:39,408 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:45:39,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1307907983, now seen corresponding path program 1 times [2018-09-14 17:45:39,409 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:45:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:45:39,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:45:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:45:39,410 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:45:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:45:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 231 proven. 132 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:45:40,847 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:45:40,847 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 17:45:40,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:45:40,855 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:45:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:45:40,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:45:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 282 proven. 41 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:45:41,498 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:45:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 142 proven. 221 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:45:42,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:45:42,178 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 17:45:42,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:45:42,194 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:45:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:45:42,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:45:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 232 proven. 41 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-14 17:45:43,442 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:45:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 142 proven. 221 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:45:44,324 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:45:44,325 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 23 [2018-09-14 17:45:44,325 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:45:44,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 17:45:44,326 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 17:45:44,326 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2018-09-14 17:45:44,326 INFO L87 Difference]: Start difference. First operand 23783 states and 29922 transitions. Second operand 13 states. [2018-09-14 17:46:12,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:46:12,197 INFO L93 Difference]: Finished difference Result 55385 states and 69620 transitions. [2018-09-14 17:46:12,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-14 17:46:12,198 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 418 [2018-09-14 17:46:12,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:46:12,298 INFO L225 Difference]: With dead ends: 55385 [2018-09-14 17:46:12,298 INFO L226 Difference]: Without dead ends: 36000 [2018-09-14 17:46:12,347 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1731 GetRequests, 1683 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=526, Invalid=1730, Unknown=0, NotChecked=0, Total=2256 [2018-09-14 17:46:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36000 states. [2018-09-14 17:46:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36000 to 32109. [2018-09-14 17:46:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32109 states. [2018-09-14 17:46:13,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32109 states to 32109 states and 40119 transitions. [2018-09-14 17:46:13,178 INFO L78 Accepts]: Start accepts. Automaton has 32109 states and 40119 transitions. Word has length 418 [2018-09-14 17:46:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:46:13,179 INFO L480 AbstractCegarLoop]: Abstraction has 32109 states and 40119 transitions. [2018-09-14 17:46:13,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-14 17:46:13,179 INFO L276 IsEmpty]: Start isEmpty. Operand 32109 states and 40119 transitions. [2018-09-14 17:46:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-09-14 17:46:13,210 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:46:13,210 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:46:13,211 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:46:13,211 INFO L82 PathProgramCache]: Analyzing trace with hash -159792433, now seen corresponding path program 1 times [2018-09-14 17:46:13,211 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:46:13,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:46:13,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:13,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:46:13,213 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:46:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:13,895 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 220 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 17:46:13,896 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:46:13,896 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 17:46:13,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:13,903 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:46:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:14,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:46:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 310 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:46:14,330 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:46:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 220 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 17:46:14,531 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:46:14,532 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 17:46:14,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:14,547 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:46:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:14,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:46:15,034 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 310 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:46:15,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:46:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 220 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-14 17:46:15,221 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:46:15,222 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-14 17:46:15,223 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:46:15,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:46:15,224 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:46:15,225 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:46:15,225 INFO L87 Difference]: Start difference. First operand 32109 states and 40119 transitions. Second operand 9 states. [2018-09-14 17:46:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:46:26,665 INFO L93 Difference]: Finished difference Result 72667 states and 100778 transitions. [2018-09-14 17:46:26,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-14 17:46:26,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 483 [2018-09-14 17:46:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:46:26,855 INFO L225 Difference]: With dead ends: 72667 [2018-09-14 17:46:26,855 INFO L226 Difference]: Without dead ends: 40877 [2018-09-14 17:46:26,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1964 GetRequests, 1935 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2018-09-14 17:46:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40877 states. [2018-09-14 17:46:27,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40877 to 37872. [2018-09-14 17:46:27,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37872 states. [2018-09-14 17:46:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37872 states to 37872 states and 49442 transitions. [2018-09-14 17:46:27,826 INFO L78 Accepts]: Start accepts. Automaton has 37872 states and 49442 transitions. Word has length 483 [2018-09-14 17:46:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:46:27,827 INFO L480 AbstractCegarLoop]: Abstraction has 37872 states and 49442 transitions. [2018-09-14 17:46:27,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:46:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 37872 states and 49442 transitions. [2018-09-14 17:46:27,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2018-09-14 17:46:27,857 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:46:27,858 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 17:46:27,858 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:46:27,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1386545772, now seen corresponding path program 1 times [2018-09-14 17:46:27,858 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:46:27,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:46:27,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:27,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:46:27,860 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:46:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 316 proven. 132 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:46:29,642 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:46:29,643 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:46:29,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:29,652 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:46:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:29,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:46:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 282 proven. 126 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-09-14 17:46:30,417 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:46:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 142 proven. 306 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:46:31,244 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:46:31,244 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:46:31,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:46:31,261 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:46:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:46:31,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:46:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 232 proven. 126 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-14 17:46:32,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-09-14 17:46:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 142 proven. 306 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:46:33,347 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:46:33,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 23 [2018-09-14 17:46:33,347 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:46:33,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 17:46:33,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 17:46:33,349 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-14 17:46:33,349 INFO L87 Difference]: Start difference. First operand 37872 states and 49442 transitions. Second operand 13 states. [2018-09-14 17:46:33,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-14 17:46:33,351 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:46:33,356 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:46:33,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:46:33 BoogieIcfgContainer [2018-09-14 17:46:33,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:46:33,357 INFO L168 Benchmark]: Toolchain (without parser) took 255294.56 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -750.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,358 INFO L168 Benchmark]: CDTParser took 0.22 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 17:46:33,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1257.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 245.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,360 INFO L168 Benchmark]: Boogie Preprocessor took 632.55 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 910.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,361 INFO L168 Benchmark]: RCFGBuilder took 6779.18 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 298.0 MB). Peak memory consumption was 298.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,362 INFO L168 Benchmark]: TraceAbstraction took 246373.50 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -145.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-14 17:46:33,367 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1257.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 245.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 632.55 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 910.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6779.18 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 298.0 MB). Peak memory consumption was 298.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246373.50 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -145.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was constructing difference of abstraction (37872states) and FLOYD_HOARE automaton (currently 2 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 246.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 214.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2022 SDtfs, 21027 SDslu, 3189 SDs, 0 SdLazy, 37141 SolverSat, 6999 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 199.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8473 GetRequests, 8286 SyntacticMatches, 28 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1356 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37872occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 9021 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 23.8s InterpolantComputationTime, 6803 NumberOfCodeBlocks, 6803 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 10928 ConstructedInterpolants, 7 QuantifiedInterpolants, 60023566 SizeOfPredicates, 44 NumberOfNonLiveVariables, 6155 ConjunctsInSsa, 159 ConjunctsInUnsatCore, 29 InterpolantComputations, 5 PerfectInterpolantSequences, 5178/7716 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/Problem15_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-46-33-380.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label01_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-46-33-380.csv Completed graceful shutdown