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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:23:23,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:23:23,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:23:23,068 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:23:23,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:23:23,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:23:23,070 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:23:23,072 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:23:23,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:23:23,074 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:23:23,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:23:23,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:23:23,077 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:23:23,078 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:23:23,079 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:23:23,080 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:23:23,080 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:23:23,084 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:23:23,086 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:23:23,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:23:23,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:23:23,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:23:23,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:23:23,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:23:23,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:23:23,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:23:23,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:23:23,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:23:23,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:23:23,097 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:23:23,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:23:23,098 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 21:23:23,101 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:23:23,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:23:23,124 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:23:23,127 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:23:23,128 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:23:23,128 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:23:23,128 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:23:23,128 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:23:23,128 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:23:23,129 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:23:23,129 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:23:23,129 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:23:23,129 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:23:23,129 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:23:23,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:23:23,130 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:23:23,130 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:23:23,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:23:23,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:23:23,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:23:23,131 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:23:23,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:23:23,132 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:23:23,132 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:23:23,132 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:23:23,132 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:23:23,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:23:23,133 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:23:23,133 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:23:23,133 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:23:23,133 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:23:23,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:23:23,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:23:23,134 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:23:23,134 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:23:23,134 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:23:23,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:23:23,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:23:23,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:23:23,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:23:23,201 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:23:23,202 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-11-07 21:23:23,261 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898c2c049/2435a3d5560e4fbb80420e32f1fa2698/FLAGf8ac33caa [2018-11-07 21:23:24,144 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:23:24,145 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label39_true-unreach-call.c [2018-11-07 21:23:24,195 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898c2c049/2435a3d5560e4fbb80420e32f1fa2698/FLAGf8ac33caa [2018-11-07 21:23:24,211 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898c2c049/2435a3d5560e4fbb80420e32f1fa2698 [2018-11-07 21:23:24,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:23:24,224 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:23:24,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:23:24,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:23:24,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:23:24,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:23:24" (1/1) ... [2018-11-07 21:23:24,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692e9784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:24, skipping insertion in model container [2018-11-07 21:23:24,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:23:24" (1/1) ... [2018-11-07 21:23:24,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:23:24,507 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:23:26,389 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:23:26,394 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:23:27,440 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:23:27,501 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:23:27,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27 WrapperNode [2018-11-07 21:23:27,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:23:27,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:23:27,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:23:27,503 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:23:27,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:23:28,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:23:28,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:23:28,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:23:28,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (1/1) ... [2018-11-07 21:23:28,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:23:28,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:23:28,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:23:28,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:23:28,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (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 21:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:23:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 21:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 21:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 21:23:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 21:23:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 21:23:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 21:23:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:23:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:23:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:23:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:23:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:23:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:23:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:23:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:23:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:23:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:23:43,099 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:23:43,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:23:43 BoogieIcfgContainer [2018-11-07 21:23:43,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:23:43,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:23:43,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:23:43,105 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:23:43,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:23:24" (1/3) ... [2018-11-07 21:23:43,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa70df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:23:43, skipping insertion in model container [2018-11-07 21:23:43,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:23:27" (2/3) ... [2018-11-07 21:23:43,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa70df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:23:43, skipping insertion in model container [2018-11-07 21:23:43,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:23:43" (3/3) ... [2018-11-07 21:23:43,110 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label39_true-unreach-call.c [2018-11-07 21:23:43,121 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:23:43,132 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:23:43,151 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:23:43,210 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:23:43,210 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:23:43,210 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:23:43,210 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:23:43,211 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:23:43,211 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:23:43,211 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:23:43,211 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:23:43,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 21:23:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-07 21:23:43,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:23:43,276 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, 1, 1, 1, 1, 1] [2018-11-07 21:23:43,278 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:23:43,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:23:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1284410716, now seen corresponding path program 1 times [2018-11-07 21:23:43,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:23:43,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:23:43,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:23:43,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:23:43,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:23:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:23:43,752 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:23:43,853 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 21:23:43,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:23:43,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 21:23:43,859 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:23:43,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:23:43,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:23:43,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:23:43,886 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 21:23:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:23:56,721 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-11-07 21:23:56,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:23:56,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-07 21:23:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:23:56,774 INFO L225 Difference]: With dead ends: 4998 [2018-11-07 21:23:56,774 INFO L226 Difference]: Without dead ends: 3218 [2018-11-07 21:23:56,786 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:23:56,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-11-07 21:23:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-11-07 21:23:56,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-11-07 21:23:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-11-07 21:23:56,998 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 38 [2018-11-07 21:23:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:23:56,999 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-11-07 21:23:56,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:23:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-11-07 21:23:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-07 21:23:57,006 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:23:57,006 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, 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] [2018-11-07 21:23:57,006 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:23:57,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:23:57,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1473327961, now seen corresponding path program 1 times [2018-11-07 21:23:57,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:23:57,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:23:57,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:23:57,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:23:57,009 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:23:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:23:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:23:57,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:23:57,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:23:57,347 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:23:57,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:23:57,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:23:57,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:23:57,350 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-11-07 21:24:21,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:24:21,878 INFO L93 Difference]: Finished difference Result 9352 states and 16959 transitions. [2018-11-07 21:24:21,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:24:21,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-11-07 21:24:21,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:24:21,917 INFO L225 Difference]: With dead ends: 9352 [2018-11-07 21:24:21,917 INFO L226 Difference]: Without dead ends: 6143 [2018-11-07 21:24:21,928 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:24:21,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6143 states. [2018-11-07 21:24:22,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6143 to 6100. [2018-11-07 21:24:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6100 states. [2018-11-07 21:24:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 9647 transitions. [2018-11-07 21:24:22,104 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 9647 transitions. Word has length 110 [2018-11-07 21:24:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:24:22,105 INFO L480 AbstractCegarLoop]: Abstraction has 6100 states and 9647 transitions. [2018-11-07 21:24:22,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:24:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 9647 transitions. [2018-11-07 21:24:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 21:24:22,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:24:22,109 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, 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] [2018-11-07 21:24:22,109 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:24:22,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:24:22,110 INFO L82 PathProgramCache]: Analyzing trace with hash 887803694, now seen corresponding path program 1 times [2018-11-07 21:24:22,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:24:22,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:22,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:24:22,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:22,112 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:24:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:24:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:24:22,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:24:22,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:24:22,369 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:24:22,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:24:22,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:24:22,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:24:22,370 INFO L87 Difference]: Start difference. First operand 6100 states and 9647 transitions. Second operand 6 states. [2018-11-07 21:24:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:24:42,664 INFO L93 Difference]: Finished difference Result 21106 states and 34246 transitions. [2018-11-07 21:24:42,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:24:42,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-11-07 21:24:42,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:24:42,741 INFO L225 Difference]: With dead ends: 21106 [2018-11-07 21:24:42,741 INFO L226 Difference]: Without dead ends: 15012 [2018-11-07 21:24:42,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:24:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15012 states. [2018-11-07 21:24:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15012 to 14823. [2018-11-07 21:24:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14823 states. [2018-11-07 21:24:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14823 states to 14823 states and 22430 transitions. [2018-11-07 21:24:43,146 INFO L78 Accepts]: Start accepts. Automaton has 14823 states and 22430 transitions. Word has length 112 [2018-11-07 21:24:43,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:24:43,147 INFO L480 AbstractCegarLoop]: Abstraction has 14823 states and 22430 transitions. [2018-11-07 21:24:43,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:24:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 14823 states and 22430 transitions. [2018-11-07 21:24:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 21:24:43,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:24:43,153 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, 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] [2018-11-07 21:24:43,153 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:24:43,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:24:43,153 INFO L82 PathProgramCache]: Analyzing trace with hash 235338043, now seen corresponding path program 1 times [2018-11-07 21:24:43,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:24:43,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:43,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:24:43,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:43,155 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:24:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:24:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:24:43,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:24:43,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:24:43,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:24:43,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:24:43,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:24:43,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:24:43,537 INFO L87 Difference]: Start difference. First operand 14823 states and 22430 transitions. Second operand 5 states. [2018-11-07 21:24:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:24:59,009 INFO L93 Difference]: Finished difference Result 45175 states and 70175 transitions. [2018-11-07 21:24:59,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:24:59,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-11-07 21:24:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:24:59,121 INFO L225 Difference]: With dead ends: 45175 [2018-11-07 21:24:59,122 INFO L226 Difference]: Without dead ends: 30358 [2018-11-07 21:24:59,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:24:59,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2018-11-07 21:24:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 29955. [2018-11-07 21:24:59,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29955 states. [2018-11-07 21:24:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29955 states to 29955 states and 41238 transitions. [2018-11-07 21:24:59,849 INFO L78 Accepts]: Start accepts. Automaton has 29955 states and 41238 transitions. Word has length 143 [2018-11-07 21:24:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:24:59,850 INFO L480 AbstractCegarLoop]: Abstraction has 29955 states and 41238 transitions. [2018-11-07 21:24:59,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:24:59,850 INFO L276 IsEmpty]: Start isEmpty. Operand 29955 states and 41238 transitions. [2018-11-07 21:24:59,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-11-07 21:24:59,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:24:59,861 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:24:59,861 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:24:59,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:24:59,862 INFO L82 PathProgramCache]: Analyzing trace with hash -151637188, now seen corresponding path program 1 times [2018-11-07 21:24:59,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:24:59,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:59,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:24:59,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:24:59,863 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:24:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:25:00,159 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:25:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 62 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:25:00,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:25:00,593 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:25:00,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-11-07 21:25:00,596 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5430], [5432], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 21:25:00,647 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:25:00,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:25:01,245 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:25:01,248 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 21:25:01,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:25:01,291 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:25:01,805 INFO L227 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 75.33% of their original sizes. [2018-11-07 21:25:01,805 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:25:01,957 INFO L415 sIntCurrentIteration]: We unified 208 AI predicates to 208 [2018-11-07 21:25:01,957 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:25:01,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:25:01,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 21:25:01,958 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:25:01,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:25:01,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:25:01,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:25:01,960 INFO L87 Difference]: Start difference. First operand 29955 states and 41238 transitions. Second operand 7 states. [2018-11-07 21:25:09,679 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 21:26:48,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:26:48,596 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:26:48,601 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:26:48,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:26:48 BoogieIcfgContainer [2018-11-07 21:26:48,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:26:48,602 INFO L168 Benchmark]: Toolchain (without parser) took 204378.99 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,603 INFO L168 Benchmark]: CDTParser took 0.26 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 21:26:48,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3276.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 518.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,606 INFO L168 Benchmark]: Boogie Preprocessor took 427.27 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,607 INFO L168 Benchmark]: RCFGBuilder took 14651.42 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 138.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.8 MB). Peak memory consumption was 673.2 MB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,608 INFO L168 Benchmark]: TraceAbstraction took 185499.70 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 21:26:48,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 3276.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 518.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 427.27 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14651.42 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 138.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 534.8 MB). Peak memory consumption was 673.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185499.70 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 109). Cancelled while BasicCegarLoop was constructing difference of abstraction (29955states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (56640 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 185.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 180.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4329 SDtfs, 23119 SDslu, 3963 SDs, 0 SdLazy, 46445 SolverSat, 9529 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 108.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 243 GetRequests, 212 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29955occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.99772600587818 AbsIntWeakeningRatio, 0.1346153846153846 AbsIntAvgWeakeningVarsNumRemoved, 19.03846153846154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 638 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 292343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 160/225 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown