java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:13:03,981 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:13:03,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:13:04,002 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:13:04,002 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:13:04,004 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:13:04,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:13:04,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:13:04,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:13:04,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:13:04,014 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:13:04,014 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:13:04,015 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:13:04,016 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:13:04,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:13:04,022 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:13:04,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:13:04,031 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:13:04,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:13:04,041 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:13:04,043 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:13:04,046 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:13:04,048 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:13:04,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:13:04,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:13:04,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:13:04,055 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:13:04,056 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:13:04,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:13:04,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:13:04,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:13:04,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:13:04,062 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:13:04,062 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:13:04,065 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:13:04,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:13:04,066 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:13:04,097 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:13:04,099 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:13:04,100 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:13:04,100 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:13:04,100 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:13:04,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:13:04,104 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:13:04,104 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:13:04,104 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:13:04,104 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:13:04,105 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:13:04,105 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:13:04,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:13:04,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:13:04,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:13:04,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:13:04,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:13:04,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:13:04,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:13:04,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:13:04,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:13:04,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:13:04,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:13:04,110 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:13:04,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:13:04,111 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:13:04,111 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:13:04,111 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:13:04,111 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:13:04,112 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:13:04,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:13:04,112 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:13:04,112 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:13:04,112 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:13:04,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:13:04,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:13:04,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:13:04,202 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:13:04,203 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:13:04,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-18 12:13:04,564 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb201d59/55313fe4800d4ba7a8cbce96ff52dbd8/FLAGa181c3679 [2018-09-18 12:13:04,954 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:13:04,955 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-18 12:13:04,977 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb201d59/55313fe4800d4ba7a8cbce96ff52dbd8/FLAGa181c3679 [2018-09-18 12:13:04,994 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb201d59/55313fe4800d4ba7a8cbce96ff52dbd8 [2018-09-18 12:13:05,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:13:05,009 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:13:05,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:13:05,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:13:05,018 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:13:05,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:13:04" (1/1) ... [2018-09-18 12:13:05,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f90d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:05, skipping insertion in model container [2018-09-18 12:13:05,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:13:04" (1/1) ... [2018-09-18 12:13:05,035 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:13:05,997 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:13:06,017 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:13:06,414 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:13:06,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06 WrapperNode [2018-09-18 12:13:06,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:13:06,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:13:06,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:13:06,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:13:06,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:06,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:06,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:13:06,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:13:06,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:13:06,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:13:07,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... [2018-09-18 12:13:07,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:13:07,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:13:07,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:13:07,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:13:07,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:13:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:13:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:13:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:13:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:13:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:13:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:13:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:13:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:13:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:13:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:13:22,635 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:13:22,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:13:22 BoogieIcfgContainer [2018-09-18 12:13:22,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:13:22,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:13:22,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:13:22,641 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:13:22,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:13:04" (1/3) ... [2018-09-18 12:13:22,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215073fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:13:22, skipping insertion in model container [2018-09-18 12:13:22,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:13:06" (2/3) ... [2018-09-18 12:13:22,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215073fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:13:22, skipping insertion in model container [2018-09-18 12:13:22,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:13:22" (3/3) ... [2018-09-18 12:13:22,645 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label22_true-unreach-call.c [2018-09-18 12:13:22,655 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:13:22,665 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:13:22,727 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:13:22,728 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:13:22,728 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:13:22,728 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:13:22,728 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:13:22,728 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:13:22,729 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:13:22,729 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:13:22,729 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:13:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-18 12:13:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-18 12:13:22,786 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:13:22,788 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:13:22,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:13:22,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1623542220, now seen corresponding path program 1 times [2018-09-18 12:13:22,798 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:13:22,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:13:22,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:13:22,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:13:22,853 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:13:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:13:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:13:23,339 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:13:23,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:13:23,339 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:13:23,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:13:23,362 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:13:23,362 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:13:23,366 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-18 12:13:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:13:38,363 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-09-18 12:13:38,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:13:38,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-09-18 12:13:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:13:38,401 INFO L225 Difference]: With dead ends: 2133 [2018-09-18 12:13:38,401 INFO L226 Difference]: Without dead ends: 1523 [2018-09-18 12:13:38,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:13:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-09-18 12:13:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-09-18 12:13:38,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-09-18 12:13:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-09-18 12:13:38,567 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 58 [2018-09-18 12:13:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:13:38,568 INFO L480 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-09-18 12:13:38,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:13:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-09-18 12:13:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-09-18 12:13:38,580 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:13:38,581 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:13:38,581 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:13:38,581 INFO L82 PathProgramCache]: Analyzing trace with hash 429401034, now seen corresponding path program 1 times [2018-09-18 12:13:38,582 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:13:38,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:13:38,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:13:38,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:13:38,585 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:13:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:13:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:13:39,129 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:13:39,129 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:13:39,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:13:39,156 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:13:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:13:39,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:14:06,080 WARN L178 SmtUtils]: Spent 24.31 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-09-18 12:14:26,414 WARN L178 SmtUtils]: Spent 16.12 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-09-18 12:14:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:26,950 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:14:29,291 WARN L178 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-09-18 12:14:29,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-09-18 12:14:32,057 WARN L178 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-09-18 12:14:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:32,506 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:14:32,506 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-09-18 12:14:32,507 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:14:32,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:14:32,508 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:14:32,509 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=161, Unknown=3, NotChecked=0, Total=210 [2018-09-18 12:14:32,509 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-09-18 12:14:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:14:54,971 INFO L93 Difference]: Finished difference Result 5731 states and 8875 transitions. [2018-09-18 12:14:54,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:14:54,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-09-18 12:14:54,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:14:55,008 INFO L225 Difference]: With dead ends: 5731 [2018-09-18 12:14:55,008 INFO L226 Difference]: Without dead ends: 4221 [2018-09-18 12:14:55,021 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 52.2s TimeCoverageRelationStatistics Valid=46, Invalid=161, Unknown=3, NotChecked=0, Total=210 [2018-09-18 12:14:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2018-09-18 12:14:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 4187. [2018-09-18 12:14:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4187 states. [2018-09-18 12:14:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4187 states to 4187 states and 6438 transitions. [2018-09-18 12:14:55,297 INFO L78 Accepts]: Start accepts. Automaton has 4187 states and 6438 transitions. Word has length 133 [2018-09-18 12:14:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:14:55,298 INFO L480 AbstractCegarLoop]: Abstraction has 4187 states and 6438 transitions. [2018-09-18 12:14:55,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:14:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4187 states and 6438 transitions. [2018-09-18 12:14:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-18 12:14:55,313 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:14:55,314 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:14:55,314 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:14:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1724428511, now seen corresponding path program 1 times [2018-09-18 12:14:55,319 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:14:55,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:55,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:14:55,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:55,321 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:14:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:14:55,730 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:14:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:55,898 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:14:55,899 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:14:55,899 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:14:55,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:14:55,900 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:14:55,900 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:14:55,900 INFO L87 Difference]: Start difference. First operand 4187 states and 6438 transitions. Second operand 6 states. [2018-09-18 12:15:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:15:02,329 INFO L93 Difference]: Finished difference Result 12483 states and 20013 transitions. [2018-09-18 12:15:02,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:15:02,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-09-18 12:15:02,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:15:02,406 INFO L225 Difference]: With dead ends: 12483 [2018-09-18 12:15:02,406 INFO L226 Difference]: Without dead ends: 8302 [2018-09-18 12:15:02,428 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:15:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8302 states. [2018-09-18 12:15:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8302 to 8239. [2018-09-18 12:15:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8239 states. [2018-09-18 12:15:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8239 states to 8239 states and 12109 transitions. [2018-09-18 12:15:02,721 INFO L78 Accepts]: Start accepts. Automaton has 8239 states and 12109 transitions. Word has length 200 [2018-09-18 12:15:02,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:15:02,722 INFO L480 AbstractCegarLoop]: Abstraction has 8239 states and 12109 transitions. [2018-09-18 12:15:02,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:15:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 8239 states and 12109 transitions. [2018-09-18 12:15:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-18 12:15:02,729 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:15:02,730 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:15:02,730 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:15:02,730 INFO L82 PathProgramCache]: Analyzing trace with hash 576306790, now seen corresponding path program 1 times [2018-09-18 12:15:02,731 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:15:02,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:02,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:02,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:02,732 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:15:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:03,040 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:15:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 103 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 12:15:03,160 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:15:03,160 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:15:03,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:03,170 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:15:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:03,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:15:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:15:03,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:15:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:15:03,604 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:15:03,604 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:15:03,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:03,751 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:15:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:03,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:15:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:15:04,111 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:15:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:15:04,357 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 12:15:04,358 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-18 12:15:04,358 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:15:04,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:15:04,359 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:15:04,359 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:15:04,360 INFO L87 Difference]: Start difference. First operand 8239 states and 12109 transitions. Second operand 5 states. [2018-09-18 12:15:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:15:13,699 INFO L93 Difference]: Finished difference Result 20022 states and 29843 transitions. [2018-09-18 12:15:13,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:15:13,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-09-18 12:15:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:15:13,772 INFO L225 Difference]: With dead ends: 20022 [2018-09-18 12:15:13,773 INFO L226 Difference]: Without dead ends: 11789 [2018-09-18 12:15:13,812 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 854 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:15:13,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11789 states. [2018-09-18 12:15:14,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11789 to 11786. [2018-09-18 12:15:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11786 states. [2018-09-18 12:15:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11786 states to 11786 states and 15637 transitions. [2018-09-18 12:15:14,152 INFO L78 Accepts]: Start accepts. Automaton has 11786 states and 15637 transitions. Word has length 216 [2018-09-18 12:15:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:15:14,153 INFO L480 AbstractCegarLoop]: Abstraction has 11786 states and 15637 transitions. [2018-09-18 12:15:14,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:15:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11786 states and 15637 transitions. [2018-09-18 12:15:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-09-18 12:15:14,163 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:15:14,164 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:15:14,164 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:15:14,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1974716581, now seen corresponding path program 1 times [2018-09-18 12:15:14,165 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:15:14,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:14,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:14,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:14,166 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:15:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:14,522 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:15:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 124 proven. 59 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 12:15:14,628 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:15:14,628 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:15:14,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:14,638 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:15:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:14,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:15:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-18 12:15:14,850 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:15:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-18 12:15:15,176 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:15:15,176 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 12:15:15,176 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:15:15,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:15:15,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:15:15,177 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:15:15,177 INFO L87 Difference]: Start difference. First operand 11786 states and 15637 transitions. Second operand 3 states. [2018-09-18 12:15:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:15:21,083 INFO L93 Difference]: Finished difference Result 24872 states and 33095 transitions. [2018-09-18 12:15:21,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:15:21,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2018-09-18 12:15:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:15:21,138 INFO L225 Difference]: With dead ends: 24872 [2018-09-18 12:15:21,139 INFO L226 Difference]: Without dead ends: 13092 [2018-09-18 12:15:21,185 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 542 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:15:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2018-09-18 12:15:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 12658. [2018-09-18 12:15:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12658 states. [2018-09-18 12:15:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12658 states to 12658 states and 16021 transitions. [2018-09-18 12:15:21,426 INFO L78 Accepts]: Start accepts. Automaton has 12658 states and 16021 transitions. Word has length 271 [2018-09-18 12:15:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:15:21,427 INFO L480 AbstractCegarLoop]: Abstraction has 12658 states and 16021 transitions. [2018-09-18 12:15:21,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:15:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states and 16021 transitions. [2018-09-18 12:15:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-09-18 12:15:21,439 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:15:21,439 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:15:21,440 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:15:21,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1016666412, now seen corresponding path program 1 times [2018-09-18 12:15:21,440 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:15:21,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:21,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:21,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:15:21,442 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:15:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 103 proven. 85 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-18 12:15:22,125 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:15:22,125 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:15:22,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:22,133 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:15:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:22,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:15:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 12:15:22,410 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:15:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 107 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:15:23,215 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:15:23,215 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:15:23,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:15:23,232 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:15:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:15:23,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:15:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 12:15:23,641 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:15:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 107 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:15:24,456 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:15:24,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8, 7, 8] total 19 [2018-09-18 12:15:24,456 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:15:24,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 12:15:24,457 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 12:15:24,458 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2018-09-18 12:15:24,458 INFO L87 Difference]: Start difference. First operand 12658 states and 16021 transitions. Second operand 14 states. [2018-09-18 12:15:25,606 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-18 12:16:41,146 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 12:17:02,998 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 26 Received shutdown request... [2018-09-18 12:17:18,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-09-18 12:17:18,595 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:17:18,601 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:17:18,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:17:18 BoogieIcfgContainer [2018-09-18 12:17:18,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:17:18,602 INFO L168 Benchmark]: Toolchain (without parser) took 253595.15 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -643.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,603 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:17:18,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1611.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 274.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,605 INFO L168 Benchmark]: Boogie Preprocessor took 841.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 950.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,606 INFO L168 Benchmark]: RCFGBuilder took 14897.70 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 457.6 MB). Peak memory consumption was 457.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,607 INFO L168 Benchmark]: TraceAbstraction took 235963.59 ms. Allocated memory was 2.5 GB in the beginning and 3.3 GB in the end (delta: 757.6 MB). Free memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 594.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:17:18,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1611.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 274.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 841.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 950.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14897.70 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 457.6 MB). Peak memory consumption was 457.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235963.59 ms. Allocated memory was 2.5 GB in the beginning and 3.3 GB in the end (delta: 757.6 MB). Free memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 594.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 161]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 161). Cancelled while BasicCegarLoop was constructing difference of abstraction (12658states) and FLOYD_HOARE automaton (currently 184 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (73341 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 235.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 173.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2360 SDtfs, 28411 SDslu, 3906 SDs, 0 SdLazy, 53130 SolverSat, 12368 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 150.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2999 GetRequests, 2750 SyntacticMatches, 20 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14921 ImplicationChecksByTransitivity, 61.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12658occurred in iteration=5, 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: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 541 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 58.8s InterpolantComputationTime, 2539 NumberOfCodeBlocks, 2539 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3907 ConstructedInterpolants, 328 QuantifiedInterpolants, 6329554 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2517 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 2184/2609 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-17-18-643.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-17-18-643.csv Completed graceful shutdown