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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label14_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 06:22:11,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 06:22:11,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 06:22:11,050 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 06:22:11,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 06:22:11,052 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 06:22:11,053 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 06:22:11,055 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 06:22:11,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 06:22:11,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 06:22:11,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 06:22:11,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 06:22:11,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 06:22:11,061 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 06:22:11,062 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 06:22:11,063 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 06:22:11,064 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 06:22:11,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 06:22:11,067 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 06:22:11,069 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 06:22:11,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 06:22:11,072 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 06:22:11,074 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 06:22:11,074 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 06:22:11,075 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 06:22:11,076 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 06:22:11,077 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 06:22:11,077 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 06:22:11,078 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 06:22:11,079 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 06:22:11,080 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 06:22:11,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 06:22:11,083 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 06:22:11,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 06:22:11,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 06:22:11,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 06:22:11,107 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 06:22:11,107 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 06:22:11,107 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 06:22:11,107 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 06:22:11,108 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 06:22:11,108 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 06:22:11,109 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 06:22:11,109 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 06:22:11,109 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 06:22:11,109 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 06:22:11,109 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 06:22:11,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 06:22:11,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 06:22:11,111 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 06:22:11,112 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 06:22:11,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 06:22:11,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 06:22:11,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 06:22:11,113 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 06:22:11,113 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 06:22:11,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 06:22:11,114 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 06:22:11,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 06:22:11,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 06:22:11,115 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 06:22:11,115 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 06:22:11,115 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 06:22:11,115 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 06:22:11,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 06:22:11,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 06:22:11,116 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 06:22:11,116 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 06:22:11,116 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 06:22:11,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 06:22:11,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 06:22:11,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 06:22:11,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 06:22:11,197 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 06:22:11,198 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label14_false-unreach-call_false-termination.c [2018-11-07 06:22:11,276 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a482c7faf/4ca37f893af2446ebb41534619c0cd6b/FLAGcb2899ebc [2018-11-07 06:22:11,978 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 06:22:11,983 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label14_false-unreach-call_false-termination.c [2018-11-07 06:22:11,999 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a482c7faf/4ca37f893af2446ebb41534619c0cd6b/FLAGcb2899ebc [2018-11-07 06:22:12,015 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a482c7faf/4ca37f893af2446ebb41534619c0cd6b [2018-11-07 06:22:12,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 06:22:12,029 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 06:22:12,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 06:22:12,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 06:22:12,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 06:22:12,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:12,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59348f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12, skipping insertion in model container [2018-11-07 06:22:12,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:12,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 06:22:12,113 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 06:22:12,713 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:22:12,718 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 06:22:12,851 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:22:12,872 INFO L193 MainTranslator]: Completed translation [2018-11-07 06:22:12,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12 WrapperNode [2018-11-07 06:22:12,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 06:22:12,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 06:22:12,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 06:22:12,875 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 06:22:12,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 06:22:13,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 06:22:13,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 06:22:13,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 06:22:13,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2018-11-07 06:22:13,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 06:22:13,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 06:22:13,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 06:22:13,191 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 06:22:13,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (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 [2018-11-07 06:22:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 06:22:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 06:22:13,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 06:22:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 06:22:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 06:22:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 06:22:13,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 06:22:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 06:22:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 06:22:16,880 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 06:22:16,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:22:16 BoogieIcfgContainer [2018-11-07 06:22:16,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 06:22:16,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 06:22:16,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 06:22:16,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 06:22:16,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:22:12" (1/3) ... [2018-11-07 06:22:16,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3ad32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:22:16, skipping insertion in model container [2018-11-07 06:22:16,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (2/3) ... [2018-11-07 06:22:16,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3ad32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:22:16, skipping insertion in model container [2018-11-07 06:22:16,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:22:16" (3/3) ... [2018-11-07 06:22:16,889 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label14_false-unreach-call_false-termination.c [2018-11-07 06:22:16,900 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 06:22:16,910 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 06:22:16,929 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 06:22:16,969 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 06:22:16,969 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 06:22:16,969 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 06:22:16,969 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 06:22:16,970 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 06:22:16,970 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 06:22:16,970 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 06:22:16,970 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 06:22:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-07 06:22:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-07 06:22:17,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:22:17,016 INFO L375 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] [2018-11-07 06:22:17,019 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:22:17,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:17,026 INFO L82 PathProgramCache]: Analyzing trace with hash 707504249, now seen corresponding path program 1 times [2018-11-07 06:22:17,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:22:17,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:17,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:22:17,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:17,088 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:22:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:22:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:22:17,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:22:17,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:22:17,405 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:22:17,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:22:17,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:22:17,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:22:17,431 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-11-07 06:22:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:22:20,363 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-11-07 06:22:20,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:22:20,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-07 06:22:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:22:20,391 INFO L225 Difference]: With dead ends: 894 [2018-11-07 06:22:20,391 INFO L226 Difference]: Without dead ends: 633 [2018-11-07 06:22:20,400 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 [2018-11-07 06:22:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-11-07 06:22:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-11-07 06:22:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-11-07 06:22:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1007 transitions. [2018-11-07 06:22:20,503 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1007 transitions. Word has length 33 [2018-11-07 06:22:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:22:20,504 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 1007 transitions. [2018-11-07 06:22:20,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:22:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1007 transitions. [2018-11-07 06:22:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-07 06:22:20,515 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:22:20,515 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:22:20,516 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:22:20,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1856067133, now seen corresponding path program 1 times [2018-11-07 06:22:20,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:22:20,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:20,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:22:20,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:20,519 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:22:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:22:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:22:20,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:22:20,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:22:20,883 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:22:20,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:22:20,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:22:20,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:22:20,886 INFO L87 Difference]: Start difference. First operand 633 states and 1007 transitions. Second operand 4 states. [2018-11-07 06:22:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:22:23,829 INFO L93 Difference]: Finished difference Result 2358 states and 3924 transitions. [2018-11-07 06:22:23,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:22:23,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2018-11-07 06:22:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:22:23,855 INFO L225 Difference]: With dead ends: 2358 [2018-11-07 06:22:23,855 INFO L226 Difference]: Without dead ends: 1731 [2018-11-07 06:22:23,862 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:22:23,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-11-07 06:22:23,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-11-07 06:22:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-11-07 06:22:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2619 transitions. [2018-11-07 06:22:23,972 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2619 transitions. Word has length 146 [2018-11-07 06:22:23,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:22:23,973 INFO L480 AbstractCegarLoop]: Abstraction has 1731 states and 2619 transitions. [2018-11-07 06:22:23,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:22:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2619 transitions. [2018-11-07 06:22:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-07 06:22:23,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:22:23,988 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:22:23,990 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:22:23,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1192336806, now seen corresponding path program 1 times [2018-11-07 06:22:23,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:22:23,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:23,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:22:23,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:23,993 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:22:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:22:24,414 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-11-07 06:22:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 52 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:22:24,686 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:22:24,686 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:22:24,687 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-07 06:22:24,689 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:22:24,757 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:22:24,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:22:28,800 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:22:28,802 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 06:22:28,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:28,816 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:22:31,950 INFO L227 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 77.63% of their original sizes. [2018-11-07 06:22:31,951 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:22:32,210 INFO L415 sIntCurrentIteration]: We unified 219 AI predicates to 219 [2018-11-07 06:22:32,211 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:22:32,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:22:32,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-07 06:22:32,212 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:22:32,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:22:32,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:22:32,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 06:22:32,215 INFO L87 Difference]: Start difference. First operand 1731 states and 2619 transitions. Second operand 6 states. [2018-11-07 06:22:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:22:53,108 INFO L93 Difference]: Finished difference Result 3641 states and 5473 transitions. [2018-11-07 06:22:53,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 06:22:53,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2018-11-07 06:22:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:22:53,121 INFO L225 Difference]: With dead ends: 3641 [2018-11-07 06:22:53,121 INFO L226 Difference]: Without dead ends: 1916 [2018-11-07 06:22:53,128 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 06:22:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-11-07 06:22:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2018-11-07 06:22:53,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-11-07 06:22:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2810 transitions. [2018-11-07 06:22:53,185 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2810 transitions. Word has length 220 [2018-11-07 06:22:53,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:22:53,186 INFO L480 AbstractCegarLoop]: Abstraction has 1914 states and 2810 transitions. [2018-11-07 06:22:53,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:22:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2810 transitions. [2018-11-07 06:22:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-07 06:22:53,196 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:22:53,196 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:22:53,196 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:22:53,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1747869460, now seen corresponding path program 1 times [2018-11-07 06:22:53,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:22:53,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:53,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:22:53,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:22:53,199 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:22:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:22:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 166 proven. 140 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:22:54,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:22:54,001 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:22:54,001 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-11-07 06:22:54,002 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:22:54,009 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:22:54,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:22:58,415 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:22:58,415 INFO L272 AbstractInterpreter]: Visited 123 different actions 364 times. Merged at 8 different actions 19 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:22:58,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:22:58,445 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:22:58,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:22:58,445 INFO L194 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 [2018-11-07 06:22:58,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:22:58,466 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:22:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:22:58,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:22:58,949 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:22:59,349 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:22:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 231 proven. 53 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-07 06:22:59,564 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:23:00,344 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-07 06:23:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 88 proven. 218 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:23:01,269 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:23:01,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2018-11-07 06:23:01,269 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:23:01,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 06:23:01,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 06:23:01,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2018-11-07 06:23:01,272 INFO L87 Difference]: Start difference. First operand 1914 states and 2810 transitions. Second operand 15 states. [2018-11-07 06:23:02,709 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2018-11-07 06:23:08,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:23:08,145 INFO L93 Difference]: Finished difference Result 4886 states and 7258 transitions. [2018-11-07 06:23:08,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 06:23:08,145 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 305 [2018-11-07 06:23:08,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:23:08,163 INFO L225 Difference]: With dead ends: 4886 [2018-11-07 06:23:08,164 INFO L226 Difference]: Without dead ends: 2966 [2018-11-07 06:23:08,173 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 616 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2018-11-07 06:23:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2018-11-07 06:23:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2675. [2018-11-07 06:23:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2018-11-07 06:23:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3528 transitions. [2018-11-07 06:23:08,265 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3528 transitions. Word has length 305 [2018-11-07 06:23:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:23:08,266 INFO L480 AbstractCegarLoop]: Abstraction has 2675 states and 3528 transitions. [2018-11-07 06:23:08,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 06:23:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3528 transitions. [2018-11-07 06:23:08,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-11-07 06:23:08,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:23:08,275 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 06:23:08,276 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:23:08,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:23:08,276 INFO L82 PathProgramCache]: Analyzing trace with hash 930742976, now seen corresponding path program 1 times [2018-11-07 06:23:08,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:23:08,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:23:08,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:23:08,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:23:08,278 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:23:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:23:08,792 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:23:08,977 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-07 06:23:09,185 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:23:09,535 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 06:23:10,025 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 06:23:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 91 proven. 241 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:23:10,712 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:23:10,712 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:23:10,713 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 332 with the following transitions: [2018-11-07 06:23:10,713 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:23:10,719 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:23:10,719 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:23:14,733 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:23:14,733 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 06:23:14,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:23:14,742 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:23:16,796 INFO L227 lantSequenceWeakener]: Weakened 328 states. On average, predicates are now at 77.58% of their original sizes. [2018-11-07 06:23:16,797 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:23:17,136 INFO L415 sIntCurrentIteration]: We unified 330 AI predicates to 330 [2018-11-07 06:23:17,136 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:23:17,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:23:17,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2018-11-07 06:23:17,137 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:23:17,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 06:23:17,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 06:23:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 06:23:17,139 INFO L87 Difference]: Start difference. First operand 2675 states and 3528 transitions. Second operand 10 states. [2018-11-07 06:23:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:23:38,972 INFO L93 Difference]: Finished difference Result 4968 states and 6659 transitions. [2018-11-07 06:23:38,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 06:23:38,972 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 331 [2018-11-07 06:23:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:23:38,984 INFO L225 Difference]: With dead ends: 4968 [2018-11-07 06:23:38,984 INFO L226 Difference]: Without dead ends: 2482 [2018-11-07 06:23:38,991 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 338 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:23:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2018-11-07 06:23:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2479. [2018-11-07 06:23:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-11-07 06:23:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3289 transitions. [2018-11-07 06:23:39,048 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3289 transitions. Word has length 331 [2018-11-07 06:23:39,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:23:39,048 INFO L480 AbstractCegarLoop]: Abstraction has 2479 states and 3289 transitions. [2018-11-07 06:23:39,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 06:23:39,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3289 transitions. [2018-11-07 06:23:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-11-07 06:23:39,057 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:23:39,057 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:23:39,057 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:23:39,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:23:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1452156471, now seen corresponding path program 1 times [2018-11-07 06:23:39,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:23:39,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:23:39,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:23:39,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:23:39,059 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:23:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:23:39,381 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 06:23:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 216 proven. 111 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 06:23:39,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:23:39,549 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:23:39,550 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-11-07 06:23:39,550 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [630], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:23:39,554 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:23:39,554 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:23:44,096 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:23:44,096 INFO L272 AbstractInterpreter]: Visited 120 different actions 359 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:23:44,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:23:44,103 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:23:44,882 INFO L227 lantSequenceWeakener]: Weakened 355 states. On average, predicates are now at 80.23% of their original sizes. [2018-11-07 06:23:44,882 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:23:44,979 INFO L415 sIntCurrentIteration]: We unified 357 AI predicates to 357 [2018-11-07 06:23:44,979 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:23:44,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:23:44,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-07 06:23:44,980 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:23:44,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:23:44,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:23:44,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:23:44,981 INFO L87 Difference]: Start difference. First operand 2479 states and 3289 transitions. Second operand 9 states. [2018-11-07 06:24:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:24:02,097 INFO L93 Difference]: Finished difference Result 5465 states and 7614 transitions. [2018-11-07 06:24:02,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 06:24:02,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 358 [2018-11-07 06:24:02,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:24:02,113 INFO L225 Difference]: With dead ends: 5465 [2018-11-07 06:24:02,113 INFO L226 Difference]: Without dead ends: 3360 [2018-11-07 06:24:02,122 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 364 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-07 06:24:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2018-11-07 06:24:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3326. [2018-11-07 06:24:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3326 states. [2018-11-07 06:24:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 4321 transitions. [2018-11-07 06:24:02,210 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 4321 transitions. Word has length 358 [2018-11-07 06:24:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:24:02,211 INFO L480 AbstractCegarLoop]: Abstraction has 3326 states and 4321 transitions. [2018-11-07 06:24:02,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:24:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 4321 transitions. [2018-11-07 06:24:02,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2018-11-07 06:24:02,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:24:02,223 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:24:02,223 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:24:02,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:24:02,223 INFO L82 PathProgramCache]: Analyzing trace with hash -707265043, now seen corresponding path program 1 times [2018-11-07 06:24:02,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:24:02,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:24:02,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:24:02,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:24:02,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:24:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:24:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 269 proven. 73 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-07 06:24:02,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:24:02,574 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:24:02,574 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 406 with the following transitions: [2018-11-07 06:24:02,575 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:24:02,577 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:24:02,577 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:24:08,136 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:24:08,136 INFO L272 AbstractInterpreter]: Visited 122 different actions 487 times. Merged at 9 different actions 35 times. Never widened. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:24:08,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:24:08,140 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:24:08,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:24:08,141 INFO L194 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 [2018-11-07 06:24:08,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:24:08,149 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:24:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:24:08,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:24:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 454 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-11-07 06:24:08,404 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:24:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 269 proven. 73 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-07 06:24:08,742 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:24:08,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-07 06:24:08,742 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:24:08,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 06:24:08,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 06:24:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-07 06:24:08,744 INFO L87 Difference]: Start difference. First operand 3326 states and 4321 transitions. Second operand 10 states. [2018-11-07 06:24:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:24:13,522 INFO L93 Difference]: Finished difference Result 12786 states and 18909 transitions. [2018-11-07 06:24:13,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 06:24:13,522 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 405 [2018-11-07 06:24:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:24:13,578 INFO L225 Difference]: With dead ends: 12786 [2018-11-07 06:24:13,579 INFO L226 Difference]: Without dead ends: 9834 [2018-11-07 06:24:13,605 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 822 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2018-11-07 06:24:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9834 states. [2018-11-07 06:24:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9834 to 9766. [2018-11-07 06:24:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9766 states. [2018-11-07 06:24:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 13013 transitions. [2018-11-07 06:24:13,896 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 13013 transitions. Word has length 405 [2018-11-07 06:24:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:24:13,897 INFO L480 AbstractCegarLoop]: Abstraction has 9766 states and 13013 transitions. [2018-11-07 06:24:13,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 06:24:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 13013 transitions. [2018-11-07 06:24:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2018-11-07 06:24:13,928 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:24:13,928 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:24:13,929 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:24:13,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:24:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash -775820871, now seen corresponding path program 1 times [2018-11-07 06:24:13,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:24:13,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:24:13,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:24:13,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:24:13,933 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:24:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:24:14,463 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 06:24:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 237 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:24:15,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:24:15,649 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:24:15,649 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 492 with the following transitions: [2018-11-07 06:24:15,649 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-07 06:24:15,653 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:24:15,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:24:21,226 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:24:21,226 INFO L272 AbstractInterpreter]: Visited 174 different actions 690 times. Merged at 8 different actions 30 times. Never widened. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-07 06:24:21,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:24:21,234 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:24:21,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:24:21,234 INFO L194 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 [2018-11-07 06:24:21,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:24:21,244 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:24:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:24:21,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:24:28,975 WARN L179 SmtUtils]: Spent 6.75 s on a formula simplification. DAG size of input: 864 DAG size of output: 28 [2018-11-07 06:25:38,328 WARN L179 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 305 DAG size of output: 133 [2018-11-07 06:25:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 418 proven. 132 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-07 06:25:38,800 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:25:39,012 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-07 06:25:47,414 WARN L179 SmtUtils]: Spent 6.98 s on a formula simplification. DAG size of input: 1556 DAG size of output: 24 [2018-11-07 06:25:47,807 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 382 Received shutdown request... [2018-11-07 06:26:15,799 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 06:26:16,001 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:26:16,001 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 06:26:16,006 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 06:26:16,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:26:16 BoogieIcfgContainer [2018-11-07 06:26:16,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 06:26:16,008 INFO L168 Benchmark]: Toolchain (without parser) took 243980.31 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. [2018-11-07 06:26:16,009 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-11-07 06:26:16,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 06:26:16,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2018-11-07 06:26:16,011 INFO L168 Benchmark]: Boogie Preprocessor took 138.55 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 06:26:16,012 INFO L168 Benchmark]: RCFGBuilder took 3690.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 144.4 MB). Peak memory consumption was 144.4 MB. Max. memory is 7.1 GB. [2018-11-07 06:26:16,013 INFO L168 Benchmark]: TraceAbstraction took 239125.23 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 2.1 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2018-11-07 06:26:16,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 843.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 176.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.55 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3690.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 144.4 MB). Peak memory consumption was 144.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239125.23 ms. Allocated memory was 2.3 GB in the beginning and 5.0 GB in the end (delta: 2.7 GB). Free memory was 2.1 GB in the beginning and 3.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was analyzing trace of length 492 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations,while CnfTransformerHelper was transforming 382 disjunction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 239.0s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 77.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1069 SDtfs, 8608 SDslu, 1351 SDs, 0 SdLazy, 10686 SolverSat, 2685 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2433 GetRequests, 2332 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9766occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 28.3s AbstIntTime, 6 AbstIntIterations, 3 AbstIntStrong, 0.9970947751722756 AbsIntWeakeningRatio, 0.09933774834437085 AbsIntAvgWeakeningVarsNumRemoved, 15.975717439293598 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 398 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2508 NumberOfCodeBlocks, 2508 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3207 ConstructedInterpolants, 0 QuantifiedInterpolants, 7047842 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1185 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 2608/3588 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown